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Yuliarita, Emi. "Pengaruh Pencampuran Kerosin dalam Minyak Solar 48 terhadap Perubahan Sifat- Sifat Fisika/Kimia Utama Minyak Solar48." Lembaran publikasi minyak dan gas bumi 44, no. 2 (February 8, 2022): 204–13. http://dx.doi.org/10.29017/lpmgb.44.2.601.
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Pencampuran kerosin ke dalam minyak Solar 48 akan mempengaruhi sifat-sifat fisika/kimiaminyak Solar 48 secara menyeluruh. Untuk melihat sejauh mana perubahan sifat-sifat fisika/kimia minyak Solar 48 akibat masuknya kerosin ini maka dilakukan penelitian pengaruhpencampuran kerosin dalam minyak Solar 48 terhadap perubahan karakteristik fisika/kimia minyakSolar 48. Metodologi yang digunakan adalah metode pencampuran langsung (direct blending)dengan volume pencampuran 10%, 20%, 30% dan 40%. Hasil penelitian menunjukkan bahwapencampuran 10% volume kerosin dalam minyak Solar 48 dapat menyebabkan penurunan beberapasifat-sifat fisika/kimia utama minyak solar seperti angka setana, viskositas kinematik, titik nyala,kandungan sulfur dan lubrisitas. Penurunan sifat-sifat fisika/kimia akibat penambahan 10% volumekerosin dalam minyak Solar 48 masih dapat memenuhi Spesifikasi Minyak Solar 48 yangditetapkan Pemerintah.
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Sari, Liawati Permata, Siti Patimah, and Ajo Dian Yusandika. "Pengembangan Scrapbook Sebagai Media Pembelajaran Fisika." Indonesian Journal of Science and Mathematics Education 2, no. 2 (November 29, 2019): 270–76. http://dx.doi.org/10.24042/ijsme.v2i2.4367.
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Abstract: This study aims to determine the feasibility of learning media Scrapbook on Solar System materials, as well as to know the response of teachers and learners to the development of learning media Scrapbook on Solar System materia ls.This research is a type of research and development (R & D). The steps of research and development are guided by Brog and Gall model with seven stages. This research was conducted at UIN Raden Intan Lampung, SMPN 21 Bandar Lampung, SMPN 13 Bandar Lampung, and Mts Muhammadiyah Bandar Lampung. The instrument of data collection used is questionnaire or questionnaire. Technique of collecting data using questionnaire with Likert scale. Data analysis techniques used are qualitative descriptive analysis techniques and descriptive statistical analysis. Media feasibility results based on the assessment of media experts and material experts are included in very good criteria. As well as the outcomes of teacher and learner responses through small group trials and field trials were assessed with very good criteria. Scrapbook learning media on the material of the Solar System as a whole received an assessment that is included in the criteria very well, so it is worthy to be used as a medium of learning.Abstrak: Penelitian ini bertujuan untuk mengetahui kelayakan media pembelajaran Scrapbook pada materi Tata Surya, serta mengetahui respon guru dan peserta didik terhadap pengembangan media pembelajaran Scrapbook pada materi Tata Surya. Penelitian ini merupakan jenis penelitian dan pengembangan (R&D). Langkah-langkah penelitian dan pengembangan berpedoman pada model Brog and Gall dengan tujuh tahapan. Penelitian ini dilaksanakan di UIN Raden Intan Lampung, SMPN 21 Bandar Lampung, SMPN 13 Bandar Lampung, dan Mts Muhammadiyah Bandar Lampung. Instrumen pengumpulan data yang digunakan adalah angket atau kuesioner. Teknik pengumpulan data menggunakan angket dengan skala Likert. Teknik analisis data yang digunakan yaitu teknik analisis deskriptif kualitatif dan analisis statistik deskriptif. Hasil kelayakan media berdasarkan penilaian ahli media dan ahli materi termasuk dalam kriteria sangat baik. Serta hasil respon guru dan peserta didik melalui uji coba kelompok kecil dan uji coba lapangan memperoleh penilaian dengan kriteria sangat baik. Media pembelajaran Scrapbook pada materi Tata Surya secara keseluruhan memperoleh penilaian yang termasuk dalam kriteria sangat baik, sehingga layak digunakan sebagai media pembelajaran.
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Yuliarita, Emi. "PENGARUH PENGGUNAAN LCO SEBAGAI KOMPONEN MINYAK SOLAR TERHADAP SIFAT-SIFAT FISIKA/KIMIA MINYAK SOLAR." Lembaran publikasi minyak dan gas bumi 39, no. 1 (February 21, 2022): 17–25. http://dx.doi.org/10.29017/lpmgb.39.1.653.
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Meningkatnya populasi kendaraan bermotor bermesin diesel di Indonesia, dan ditambah dnegan banyaknya industri-industri yang benyak menggunakan minyak solar sebagai bahan bakarnya, menyebabkan kebutuhan minyak solar dalam negeri meningkat dari tahun ke tahun. sementara itu persediaan minyak solar dalam negeri tidak mencukupi sehingga untuk memenuhi kebutuhan tersebut Indonesia terpaksa mengimpor minyak solar.
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Rahman, Rosdiana Afifah, and Sudarti Sudarti. "ANALISIS KEMAMPUAN BERPIKIR KRITIS MAHASISWA PENDIDIKAN FISIKA SEMESTER 3 TENTANG PEMANFAATAN TEKNOLOGI SOLAR CELL TERHADAP LINGKUNGAN." Jurnal Inovasi Penelitian dan Pembelajaran Fisika 2, no. 1 (January 31, 2021): 10. http://dx.doi.org/10.26418/jippf.v2i1.44530.
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This article aims to analyze students' understanding of the purpose of solar cell technology. Because the role of students is very important in developing one of the renewable energies that is solar cells. There are still many people who have not seen other benefits from the sun, as well as ways to use solar energy for other processes, such as the use of solar cells in households and so on. Most of humans have not seen other ways and benefits of solar energy. So that to socialize the use of solar cell technology, students need to understand how important solar energy is as a renewable energy and how to use it. The method used in this study used quantitative descriptive, with the sample of 2019 class of physics education students.Keywords: Solar cell, Environment, Renewable.
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Susilawati, Susilawati, and Intan Wulan Sari. "PEMBELAJARAN FISIKA BERBANTUKAN MEDIA SOSIAL FACEBOOK DAN DAMPAKNYA TERHADAP HASIL BELAJAR FISIKA." Jurnal Pendidikan Fisika 7, no. 1 (March 29, 2019): 1. http://dx.doi.org/10.24127/jpf.v7i1.1788.
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Era teknologi saat ini mebutuhkan kemampuan menggunakan pembelajaran yang memadukan pemanfaatan informasi teknologi dan komunkasi untuk meningkatkan hasil belajar. Sehingga pemanfaatan produk teknologi dalam pembelajaran perlu mendapat perhatian serius. Tujuan penelitian ini untuk mengetahui pengaruh pembelajaran berbantukan media sosial facebook terhadap hasil belajar fisika pada topik tata surya. Metode yang diguanakan dalam penelitain ini adalah kuasi eksperimen dengan desain one group pretest posttest. Penelitian ini dilakukan di MTsN Rukoh Banda Aceh pada siswa kelas VII dengan total sampel 59 siswa. Melalui metode random sampling terpilih kelas VIIA sebagai kelas eksperimen yang diberi perlakuan pembelajaran berbantukan media sosial facebook. Sedangkan kelas VIID terpilih sebagai kelas kontrol yang diajarakan dengan metode diskusi tanya jawab. Teknik pengolahan data melalui uji t dengan aplikasi SPSS versi 20. Setelah dilakukan analisis persyaratan diperoleh data bahwa kedua kelas memenuhi syarat normalitas dan homogenitas. Hasil uji t diperoleh nilai t hitung 25,58 dimana t tabel 16,9 maka t tabel < t hitung yaitu 16,9 < 25.58 sehingga Ho ditolak dan Ha diterima. Hasil ini menunjukkan terdapat pengaruh pembelajaran berbantukan media sosoal facebook terhadap hasil belajar siswa. Berdasarkan hasil Paired Samples Test dan Paired samples correlations diperoleh nilai sig (2- tailed) 0.000 < 0,05 menunjukkan adanya pengaruh signifikan pembelajaran berbantukan jejaring social facebook terhadap hasil belajar fisika pada topik tata surya.The current era of technology requires the ability to use learning that combines the use of information technology and communication to improve learning outcomes. So that the use of technology products in learning needs serious attention. The purpose of this study was to determine the effect of Facebook social media assisted learning on the results of learning physics on the topic of the solar system. The method used in this research is quasi-experiment with the design of one group pretest posttest. This research was conducted at Rukoh Banda Aceh MTsN in class VII students with a total sample of 59 students. Through the random sampling method selected the VIIA class as the experimental class which was given a learning treatment assisted by social media Facebook. While the VIID class was chosen as the control class taught by the question and answer discussion method. Data processing techniques through t-test with SPSS version 20. After the requirements analysis, the data obtained that the two classes meet the requirements for normality and homogeneity. The results of the t test obtained t count 25.58 where t table 16.9 then t table <t count is 16.9 <25.58 so Ho is rejected and Ha is accepted. These results indicate that there is an effect of learning assisted by social media Facebook on student learning outcomes. Based on the results of Paired Samples Test and Paired samples correlations, the value of sig (2- tailed) 0,000 <0,05 indicates that there is a significant influence of learning assisted by Facebook social networking on the results of learning physics on the topic of the solar system.
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Yuliarita, Emi. "Pengujian kinerja terbatas Minyak Solar Bertitik Nyala 55oC dan 52oC pada Bangku Uji Multisilinder." Lembaran publikasi minyak dan gas bumi 45, no. 2 (March 1, 2022): 165–73. http://dx.doi.org/10.29017/lpmgb.45.2.695.
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Dalam penelitian terdahulu telah dilakukan pembuatan bahan bakar minyak solar 48 bertitiknyala 55oC dan 52oC melalui cutting distillation. Dari hasil analisis sifat-sifat fisika/kimia masingmasingminyak solar bertitik nyala 55oC dan 52oC yang didapatkan, dapat memenuhi spesifikasiminyak solar 48 yang di tetapkan pemerintah sesuai dengan surat keputusan Dirjen Migas No.3675 K/24/DJM/2006 tanggal 17 Maret 2006. Selanjutnya untuk melihat kinerja (performance)dari masing-masing bahan bakar tersebut maka dilakukan pengujian kinerja terbatas terhadapmasing-masing bahan bakar minyak solar bertitik nyala 55oC dan 52oC pada bangku uji multisilinder(Multisylinder Test Bench) dengan menggunakan mesin diesel Isuzu 4JA1) pada tiga kategoribeban. Hasil uji kinerja secara keseluruhan memperlihatkan bahwa minyak solar bertitik nyala55oC dan 52oC sedikit lebih kecil dari minyak solar bertitik nyala 60oC. Namun emisi gas buangkepekatan asap/opasitas minyak solar bertitik nyala 55oC dan 52oC jauh lebih rendah disbandingminyak solar bertitik nyala 60oC.
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Yuliarita, Emi. "Pembuatan Bahan Bakar Minyak Solar 48 Bertitik Nyala Minimum 550C dan 520C Melalui Cutting Distillation." Lembaran publikasi minyak dan gas bumi 45, no. 1 (March 1, 2022): 25–31. http://dx.doi.org/10.29017/lpmgb.45.1.679.
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Pada saat ini batasan titik nyala yang ditentukan untuk minyak Solar 48 di Indonesia adalahminimum 60°C, yang lebih tinggi dibandingkan dengan negara-negara lain. Oleh karena itu penelitianini bertujuan untuk membuat minyak Solar 48 dengan titik nyala minimum 55oC dan 52oC denganmenggunakan metode cutting distillation. Proses cutting distillation dilakukan terhadapcampuran 50:50 minyak tanah dan minyak solar pada temperatur penguapan distilat berkisarantara 10% sampai 40% dari volume distilat. Sisa campuran bahan bakar yang diperoleh daripemotongan distilasi yang mempunyai angka setana paling mendekati 48 digunakan sebagaikomponen dasar untuk pembuatan minyak Solar 48 bertitik nyala 55oC dan 52oC. Kemudianfraksi nafta digunakan untuk membuat penyesuaian titik nyala.Berdasarkan hasil uji sifat-sifat fisika/kimia minyak solar 48 bertitik nyala 55oC dan 52oCyang dihasilkan dalam penelitian ini adalah sesuai dengan spesifikasi minyak Solar 48 yangberlaku di Indonesia sebagaimana diatur dalam Surat Keputusan Dirjen Migas No. 3675 K/24/DJM/2006 tanggal 17 Maret 2006.
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Mulyadi, Eko. "Pengembangan Media Pembelajaran Efek Fotolistrik pada Pembelajaran Fisika di SMK." Ideguru: Jurnal Karya Ilmiah Guru 7, no. 2 (May 1, 2022): 206–11. http://dx.doi.org/10.51169/ideguru.v7i2.361.
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Pengembangan media pembelajaran efek fotolistrik berupa serangkaian solar sel, bertujuan untuk: 1) studi kelayakan media pembelajaran efek fotolistrik, 2) mempermudah pemahaman siswa tentang efek fotolistrik, 3) membuat siswa menyukai pembelajaran efek fotolistrik dan 4) mengukur besarnya peran media pembelajaran solar sel dalam membantu pemahaman siswa. Proses pengembangan menggunakan model Borg & Gall: 1) Potensi (Masalah), 2) pengumpulan data, 3) desain produk validasi, 4) revisi, 5) uji coba, 6) revisi, 7) produk yang dihasilkan.yang dimulai dari desain rancangan dengan menggunakan 4 panel surya disusun pararel dihubungkan dengan kabel 2 buah kabel positif dan negatif, ke hambatan, kapasitor dan diode, kemudian ke lampu LED, produk dari desain di rangkai, hasilnya dinilaikan kepada ahli media, ahli materi dan pengguna, penilaian dari ahli media, ahli materi dan pengguna di rekapitulasi, untuk mengetahui kelayakan, hasil masukan dan saran untuk perbaikan produk. Hasil penilaian diperoleh rata-rata dari ahli media sebesar 4,00 kategori baik, ahli materi sebesar 4,40 kategori sangat baik dan pengguna diperoleh rata-rata 3,85 kategori baik dan media layak untuk digunakan, siswa yang memahami materi efek fotolistrik dengan media sebesar 58%, siswa yang menyukai pembelajaran efek fotolistrik dengan media 27% amat baik, 35% baik, siswa menilai peran media pembelajaran efek fotolistrik, 46% amat baik dan 35% baik.
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Shahid, Muhammed, Rizwan Aslam Butt, and Attaullah Khawaja. "Fiscal- and Space-Constrained Energy Optimization Model for Hybrid Grid-Tied Solar Nanogrids." Energies 15, no. 21 (October 31, 2022): 8080. http://dx.doi.org/10.3390/en15218080.
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Due to rising fossil fuel costs, electricity tariffs are also increasing. This is motivating users to install nanogrid systems to reduce their electricity bills using solar power. However, the two main constraints for a solar system installation are the initial financial investment cost and the availability of space for the installation of solar panels. Achieving greater electricity savings requires more panels and a larger energy storage system (ESS). However, a larger ESS also increases the electricity bill and reduces the available solar power due to higher charging power requirements. The increase in solar power leads to the need for more space for solar panel installation. Therefore, achieving the maximum electricity savings for a consumer unit requires an optimized number of solar panels and ESS size within the available financial budget and the available physical space. Thus, this study presents a fiscal- and space-constrained mixed-integer linear programming-based nanogrid system model (FS-MILP) designed to compute the optimal number of solar panels and ESS requirements, and the daily electricity unit consumption and savings. The proposed model is also validated through an OMNET++-based simulation using real-time solar irradiance and residential load values of one year for the city of Karachi, Pakistan. The investigation results show that a maximum of 1050 electricity units can be saved and exported to the main power grid within the maximum financial budget of PKR 1,000,000/-.
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Detoni, Alessandra Maria, Neuza Francisca Michelon Herzog, Tatiane Ohland, Tailene Kotz, and Edmar Clemente. "Influência do sol nas características fisicas e químicas da tangerina 'Ponkan' cultivada no oeste do Paraná." Ciência e Agrotecnologia 33, no. 2 (April 2009): 624–28. http://dx.doi.org/10.1590/s1413-70542009000200041.
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A 'Ponkan' (Citrus reticulata Blanco) é uma das tangerinas mais produzidas no Brasil e muita apreciada pelo consumidor brasileiro. Tendo em vista a sua alta aceitação, há preocupação em se produzir frutos de boa qualidade. Entre os fatores que interferem na qualidade dos frutos podemos citar, como exemplo, a radiação solar. Objetivou-se, neste trabalho, avaliar as características físicas e químicas de frutos de tangerina 'Ponkan', cultivados no oeste do Paraná e colhidos em dois quadrantes da planta, um de maior incidência solar (leste-oeste) e outro de menor incidência (norte-sul). Para as análises físicas determinou-se: o peso do fruto, da casca e dos gomos, diâmetro transversal e longitudinal. Nas análises químicas foram avaliados: o pH, teor de sólidos solúveis totais (SST), acidez total titulável (ATT), relação SST/ATT e teor de ácido ascórbico. Pôde-se verificar pelos resultados obtidos que os frutos desenvolvidos no quadrante leste-oeste das plantas, onde ocorre maior incidência solar, apresentaram maior peso (212,86 g) e diâmetro longitudinal (74,42 mm) quando comparados com frutos do quadrante de menor incidência solar (180,30 g e 67,75 mm, respectivamente). Porém, nas características químicas não observaram diferenças que pudessem interferir no sabor dos frutos.
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Meunier, L. "Irradiazione solare: basi fisiche ed effetti cutanei biologici e clinici." EMC - Cosmetologia Medica e Medicina degli Inestetismi Cutanei 10, no. 1 (July 2013): 1–8. http://dx.doi.org/10.1016/s1776-0313(13)64705-x.
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Butelman, Andrea. "Ortodoxia fiscal VS Ortodoxia micro." Observatorio Económico, no. 95 (July 1, 2015): 4–5. http://dx.doi.org/10.11565/oe.vi95.171.
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¿Qué es inversión? Si decide instalar en su casa un sistema de energía solar para generar electricidad -con lo que reducirá sus cuentas lo suficiente como para queen algunos años se pague la instalación, seguramente considerará que hizo una inversión. De hecho, la hizo. Para su riqueza -y por ende, para sus decisiones de consumo- tal inversión será equivalente a hacer un depósito a interés en el banco, si este último le diera igual rendimiento. Continuar leyendo...
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Triwiyono, Triwiyono, and Sudardja Adiwikarta. "Identifikasi Pengetahuan Tradisional Masyarakat Sentani dan Peluangnya untuk Pembelajaran Fisika." Jurnal Pendidikan Fisika dan Teknologi 1, no. 1 (March 14, 2017): 77. http://dx.doi.org/10.29303/jpft.v1i1.238.
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This research is aimed to investigate, to describe and to elaborate the system of traditional knowledge of Sentani society in Papua. Research method is qualitative. The conduction of the research has been done in forms of interview, field observation, and bibliography study that to spent four months. Respondents were chosen purposively. Some findings on traditional knowledge that related to physics are about ethnophysics, and transportation. The most important finding is that the traditional knowledge has not been able to explain all natural phenomena, moreover scientifically. For example solar-eclipse, lightning as an incredible mystical phenomena.
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Rose, Richard B. "The Ottoman Fiscal Calendar." Middle East Studies Association Bulletin 25, no. 2 (December 1991): 157–67. http://dx.doi.org/10.1017/s0026318400024238.
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One of the daunting aspects of studying the Middle East is the confluence of several, often unrelated, languages, each with its own alphabet. Having gained some control over these, the student then comes up against a jumble of calendars. While many of these complications are lessened when focusing on a particular region or period of time, the cosmopolitan nature of the Ottoman Empire evolved a dense fabric of interwoven languages (Persian, Turkish, and Arabic) and of calendars, which were not only in use alongside each other, but were blended to create new subspecies! Handbooks and concordances have existed for a long time to enable the scholar to translate solar, lunar, agricultural, and urban time reckonings into modern calendars. We are most familiar with the standard Gregorian/Hijra guides, as Europeans were once deeply involved in concordances of Old Style (Julian) and New Style (Gregorian) conversion tables.The Ottoman fiscal calendar is one of the more peculiar challenges which must be attended to, in order to control adequately the immense store of documents from the last centuries of the Turkish Empire. This calendar was employed particularly in the State’s fiscal and trade sectors; hereafter it is identified by the code SM, for sene-i-maliye, the fiscal year. It is a solar calendar, first put into use in AD 1676, and adopted by more areas of trade and administration until it becanle the official standard calendar of the empire in AD 1839. The supremacy of SM usage then lasted until AD 1917, when it was first modified to accord with Gregorian NS reckoning over Julian OS. Finally, SM usage was discontinued entirely in December of AD 1925, and replaced by the “Western” Gregorian calendar.
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Mujizatullah, Mujizatullah. "Islamic-Based Physics Learning Model in the Subject of Solar System and Life on Earth." Jurnal Pendidikan Fisika 7, no. 1 (January 26, 2019): 19–31. http://dx.doi.org/10.26618/jpf.v7i1.1736.
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The research aimed to describe the Islamic based physics science learning model in the subject of measurement at Uminda Islamic School in Gowa by using a qualitative approach the result of research can be seen in implementation learning activities: Praying, read Al-quran and learning process. The students inspired the teaching of islam by instilling religions valves including knowing, understanding the living Gods creating with the Universe of the solar system, life on earth and also the implementation of religions extracurricular activities. The closing learning process, the teacher and the students made conclusion together Islamic based science learning model in physics lesson on the solar system and life on earth at Uminda Islamic School in Gowa with using with implementatively formulated model namely “Dialogical Diodik” with accordance with the study of Islamic based science physics learning model from the aspect of the of the interdisciplinary approach because it only involved two science and religions extracurricular activities through faith and piety learning. The students were given lesson to observe the universe event and mental spiritual formation which was integrated with the planting of religions valves, but there were still limited teacher resources to do it.Keywords: Model, Pembelajaran IPA, Fisika, berbasis, Islam.Penelitian bertujuan untuk menggambarkan Model pembelajaran IPA Fisika berbasis Islam pada Pokok Bahasan Pengukuran di MTS Uminda Kabupaten Gowa . dengan menggunakan pendekatan kualitatif. Hasil penelitian dapat terlihat pada implementasi langkah –langkah pembelajaran,mulai dari kegiatan pembelajaran pendahuluan :Membaca doa, membaca ayat suci Al Quran surat-surat pendek,kegiatan pembelajaran Inti :Menghayati ajaran agama Islam dengan menanamkan nilai-nilai agama diantaranya mengetahui, memahami dan menghayati ciptaan Tuhan dengan adanya alam semesta sistem tata surya dan kehidupan di bumi dan implementasi ektrakurikuler keagamaan.kegiatan pembelajaran Penutup .Guru dan peserta didik bersama-sama menyimpulkan Model pembelajaran IPA berbasis Islam pada pelajaran fisika pokok bahasan sistem tata surya dan kehidupan di bumi pada Madrasah Tsanawiyah Swasta Uminda Kabupaten Gowa menggunakan model yang dirumuskan secara implementatif yaitu model Diadik Dialogis yang sesuai dengan kajian model pembelajaran IPA-Fisika berbasis Islam dari aspek pendekatan interdisipliner karena hanya melibatkan dua disiplin ilmu IPA dan agama. Selanjutnya di integrasikan pada kegiatan ekstrakurikuler Keagamaan melalui pembelajaran iman dan taqwa peserta didik di berikan pembelajaran mengamati kejadian alam semesta dan pembinaan mental spiritual yang di integrasikan dengan penanaman nilai-nilai Agama. Namun masih terbatas sumber daya Guru untuk melaksnakan hal tersebut.Kata kunci: Pembelajaran IPA, Fisika, berbasis Islam.
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Maciel Almeida de Andrade, Mariana, Camila de Almeida Porto, Elisângela Maria Rodrigues Rocha, Erika Lima Silva, and Larissa Granjeiro Lucena. "Tratamento do lixiviado bruto por coagulação/floculação e POA solar." Revista DAE 68, no. 225 (August 21, 2020): 6–14. http://dx.doi.org/10.36659/dae.2020.049.
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O presente trabalho avaliou a eficiência do pré-tratamento do lixiviado bruto de aterro sanitário por coagulação/floculação seguido do processo oxidativo homogêneo solar (H2O2/UV). Foram realizados ensaios em Jar-Test, com o Al2(SO4)3 e o FeCl3, a fim de determinar as melhores condições para a coagulação/floculação, tendo como variáveis-resposta: a remoção de cor verdadeira e turbidez. Em seguida, a melhor condição de cada coagulante foi submetida ao processo H2O2/UV solar, sendo as amostras avaliadas quanto a cor verdadeira, turbidez e DQOtotal. Na combinação da coagulação/floculação com Al2(SO4)3 (600 mgAl2+L-1, pH 5), seguida pelo processo H2O2/UV solar, conseguiram-se remoções de 95,26% de cor verdadeira, 69,36% de turbidez e 53,92% DQOtotal. Já o processo com FeCl3 (450 mgFe3+L-1, pH 4) seguido por H2O2/UV solar obteve remoções de 97,01% de cor, 79,57% de turbidez e 62,85% de DQOtotal. Concluiu-se que o tratamento utilizado foi eficiente, podendo auxiliar na aplicação posterior de um tratamento biológico. Palavras-chave: Tratamento fisico-químico. Al2(SO4)3, FeCl3.
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Kaufmann, P., E. Correia, J. E. R. Costa, and A. M. Zodi. "Far Infrared and Submillimeter Continuum Observations of Solar Flares: Justifications and Prospects for Ground-Based Experiments." Symposium - International Astronomical Union 154 (1994): 93–101. http://dx.doi.org/10.1017/s0074180900124313.
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Solar flare observations in the sub-mm spectral bands are essentially non-existent. There is evidence that some solar bursts exhibit a spectral component rising in intensity towards wavelengths shorter than 3 mm, displaying fast sub-second pulses at different repetition rates. On the other hand, the spectral features of white light flares are also unknown in the infra-red range of frequencies. In both wavelength ranges the physics of the emission processes may involve particles accelerated to high energies. The diagnostics of solar flare continuum emission in the IR and sub-mm spectral regions will provide crucial tests on various flare models and bring some clues on the initial primary energy release mechanisms. We propose the construction and operation of a ground-based telescope, operating at two sub-millimeter wavelengths (at about 210 GHz and 405 GHz), with high time resolution (one millisecond), capable of determining the spatial position of burst emission centroids with high definition (a few arcseconds) using the multiple beam technique. Final installation and operation at a high-altitude site in the Argentinian Andes mountains are planned in a joint cooperation with Argentina's Instituto de Astronomia y Fisica del Espacio, IAFE (M. Rovira and associates) and Complejo Astronomico El Leoncito, CASLEO, San Juan (H. Levato and associates); and Switzerland's University of Bern, Institute of Applied Physics, IAP, Bern (A. Magun and associates).
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Devlieger, Francis, Luis Inzunza, and Juan E. Easton. "FACTORES DE FABRICACION QUE INFLUYEN EN LAS CARACTERISTICAS FISICO-MECANICAS DE UN TABLERO COMPUESTO ELABORADO EN UNA SOLA ETAPA." Bosque 8, no. 1 (1987): 49–54. http://dx.doi.org/10.4206/bosque.1987.v8n1-06.
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López Mata, C., C. Velasco Santos, A. L. Martínez, J. O. Aguilar, J. Campos, and J. M. Zavala Pimentel. "Nanocompuestos de P30T y Óxido de Grafeno para Aplicaciones Fotovoltáicas: Caracterización Física y Fisicoquímica." Quimica Hoy 2, no. 3 (June 30, 2012): 6. http://dx.doi.org/10.29105/qh2.3-154.
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Fueron incorporadas nanoestructuras de óxido de grafeno (GROX) en una matriz de poli-3-octiltiofeno (P3OT). Se llevó a cabo la caracterización fisica y fisicoquímica de las nanoestructuras de GROX y de las mezclas obtenidas en forma de películas compuestas. Las técnicas de caracterización empleadas fueron: Infrarrojo por Transformada de Fourier (FTIR), espectroscopía Raman, Microscopía Electrónica de Transmisión (TEM, Transmision Electronic Microscopy), Microscopia de Fuerza Atómica (AFM, Atomic Force Microscopy). Las propiedades ópticas y eléctricas de los nanocompuestos fueron caracterizadas en función de la concentración del óxido de grafeno presente en la mezcla (5, 1 O y 20% en peso respecto al polímero w/w). Se encontró que las películas compuestas con 10% en peso de GROX formaron una celda solar de contacto metal-semiconductor cuando el arreglo estructural fue ITO/PO3T-GROX/ Al.
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Idris, Ramli, Zuhaimi Zuhaimi, and Hasrin Hasrin. "Alat pengering ikan teri dengan intensitas tenaga matahari (solar energy)." Jurnal POLIMESIN 3, no. 2 (September 29, 2019): 203. http://dx.doi.org/10.30811/jpl.v3i2.1448.
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Penggunaan sinar matahari sebagai sumber energi untuk. mengeringkan ikan tidak dapat dimanfaatkan setiap saat terutama pada saat musim hujan. Hal ini menyebabkan banyak ikan yang terbuang sehingga dapat menyebabkan pencemaran lingkungan. Penelitian ini dilakukan dilapangan dengan membuat alat pengering (collector) dengan ukuran 8 x 6 x 1,8 meter yang bertujuan unluk dapat mengeringkan ikan pada musim hujan. Ikan yang telah dikeringkan dengan alat pengering collector kemudian dianalisa kadar basahnya dengan system oven di laboratorium kimia fisika Politeknik Negeri Lhokseumawe. Adapun metode penelitian ini dipakai adalah eksperimen bujur sangkar 3 x3, dimana setiap kali perlakuan diamati tiga kali;sehingga berjumlah 27 sampel. Dari hasil pengolahan data statistic dapai disimpulkan bahwa ketebalan dan waktu penjemuran sangat mempengaruhi kekeringan lkan teri, dan tingkat kadar basah ikan yang sesuai adalah pada ketebalan diwaktu penjemuran 1cm dan 6jam.
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Wulandari, Rini, Eko Swistoro, and M. Lutfi Firdaus. "Penerapan model pembelajaran problem solving fisika berbantuan alat peraga kolektor surya pada pembelajaran kalor di SMA IT Iqra’." PENDIPA Journal of Science Education 3, no. 3 (October 24, 2019): 154–59. http://dx.doi.org/10.33369/pendipa.3.3.154-159.
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AbstraCT[Application of Physics Problem Solving Learning Model Assisted Collector Solar Props on Heat Learning in SMA IT Iqra ']. The aims of this study is to explain the students 'cognitive learning outcomes using the learning model of Physics Solving Problem assisted solar collectors in heat learning in SMA IT Iqra' Bengkulu, and to explain the cognitive learning outcomes between high, medium and low group students. The subjects of this study are 24 students who follow the physical extracurricular activities in SMA IT Iqra ' Bengkulu. This type of research is pre-experimental by setting aside a group of pretest and posttest designs. Student cognitive learning result data obtained by test instrument that is question of multiple choice. Pretest measurement data form the basis for grouping students into high, medium and low groups. Data on cognitive learning outcomes were analyzed and calculated using normalized gain values and analyzed using the Anova test. The results showed that overall N-gain of 0.59 was moderate. N-gain based on group that is high group equal to 0,72; medium group of 0,58; and low group of 0.47. Based on anova test conducted to know the difference of cognitive learning result between student group obtained Fcount = 4,046 > F table 3,47 and sig value. 0.033 ? 0.05. The conclusion of this research is the learning model of Physics Solving Problem assisted by solar collector can improve students 'cognitive learning outcomes in extracurricular activities in SMA IT Iqra' Bengkulu and there is a significant difference of cognitive learning achievement among high, medium and low students.Keywords: Learning model; Physics Problem Solving; Heat, Cognitive learning outcomes (Received December 17, 2019; Accepted July 5, 2019; Published October 24, 2019) AbstrakPenelitian ini bertujuan untuk menjelaskan peningkatan hasil belajar kognitif siswa yang diajarkan menggunakan model pembelajaran Problem Solving Fisika berbantuan alat peraga kolektor surya dalam pembelajaran kalor di SMA IT Iqra’ Kota Bengkulu, dan untuk menjelaskan perbedaan peningkatan hasil belajar kognitif antara siswa kelompok tinggi, sedang dan rendah. Subjek penelitian ini adalah 24 siswa yang mengikuti kegiatan ekstrakurikuler fisika di SMA IT Iqra’ Kota Bengkulu. Jenis penelitian adalah pre-eksperimental dengan desain one group pretest and posttest design. Data hasil belajar kognitif siswa diperoleh dengan instrumen tes yaitu soal pilihan ganda. Data hasil nilai pretest menjadi dasar pengelompokan siswa ke dalam kelompok tinggi, sedang dan rendah . Data hasil belajar kognitif dianalisis secara deskriptif dan dihitung dengan menggunakan skor gain yang dinormalisasi serta dianalisis menggunakan uji Anova. Hasil penelitian menunjukkan N-gain keseluruhan siswa sebesar 0,59 berkategori sedang. N-gain berdasarkan kelompok yaitu kelompok tinggi sebesar 0,72; kelompok sedang sebesar 0,58; dan kelompok rendah sebesar 0,47. Berdasarkan uji anova yang dilakukan untuk mengetahui perbedaan hasil belajar kognitif antar kelompok siswa diperoleh Fhitung 4,046 > Ftabel 3,47 dan nilai sig. 0,033 ? 0.05. Kesimpulan penelitian ini adalah model pembelajaran Problem Solving Fisika berbantuan alat peraga kolektor surya dapat meningkatkan hasil belajar kognitif siswa pada kegiatan ekstrakurikuler di SMA IT Iqra’ Kota Bengkulu dan terdapat perbedaan peningkatan hasil belajar kognitif yang signifikan antara siswa kelompok tinggi, sedang dan rendah.Kata kunci: Model Pembelajaran; Problem Solving Fisika; Kalor, Hasil belajar kognitif.
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Borroni, Massimiliano. "Wandering Days: Two Sources in Poetry on the Abbasid Reforms of the Fiscal Schedule." Journal of the Economic and Social History of the Orient 64, no. 4 (June 4, 2021): 455–81. http://dx.doi.org/10.1163/15685209-12341543.
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Abstract A close reading of two poetical sources provides new data on the reforms of the fiscal schedule of the Abbasid state in the ninth century. This paper reconstructs the calendrical complications in those Abbasid regions that followed Iranian administrative tradition and its solar calendar without intercalations. Two reforms were issued under al-Mutawakkil and al-Muʿtaḍid to correct the fiscal schedule of these regions. A panegyric by al-Buḥturī allows us to confirm and contextualize al-Mutawakkil’s reform in the final years of his caliphate. A few verses by Ibn al-Muʿtazz give a significant description of the close connection between al-Muʿtaḍid’s reform of the Iranian New-Year’s day and the construction of his public figure.
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Siagian, Sinta Marito. "Analisis Semikonduktor zno:cu Terhadap Efisiensi Dye Sensitized Solar Cell Menggunakan Ekstrak Alami." Jurnal Elektro dan Mesin Terapan (ELEMENTER), Vol. 7 No. 2 (2021) (November 30, 2021): 51–57. http://dx.doi.org/10.35143/elementer.v7i2.5145.
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Penelitian ini bertujuan untuk mengetahui bagaimana efisiensi Sel Surya dengan adanya penambahan doping Tembaga (Cu) dengan menggunakan ekstrak kulit buah naga yang berperan sebagai dye atau sebagai adsorbsi cahaya. Penelitian ini tentu dilakukan dengan proses fisika dan kimia. Adapun metode yang digunakan yaitu Liquid Phase Depositon (LPD) untuk pembuatan bahan dasar, sehingga dihasilkan Semikonduktor ZnO doping Tembaga yang kemudian dideposisikan pada suatu kaca konduktif menggunakan metode doctor blade kemudian di rendam pada ekstrak kulit buah naga, selanjutnya dilakukan pengukuran tegangan dan arus listrik agar dapat diperoleh hasil efisiensi sel surya. penambahan doping tembaga pada penelitian ini dapat meningkatkan nilai efisiensi DSSC yang diukur dengan menggunakan cahaya matahari dan lampu, pada kondisi 0% efisiensi sebesar 0.27%, sementara pada kondisi doping 11% meningkat menjadi 0.67% demikian pula dengan pemberian cahaya lampu
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Ridwan, Muhammad, Hadma Yuliani, and Nur Inayah Syar. "Pengembangan Prototipe Kincir Angin Savonius Menggunakan Bilah Baling Sel Surya Sebagai Media Pembelajaran Fisika." Jurnal Ilmiah Pendidikan Fisika 5, no. 2 (July 29, 2021): 239. http://dx.doi.org/10.20527/jipf.v5i2.2949.
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Pengembangan prototipe sebagai media pembelajaran di lembaga pendidikan yang menggabungkan dua sumber energi kedalam satu buah sistem alat. Penelitian ini bertujuan mendeskripsikan desain prototipe, kelayakan prototipe, dan tanggapan guru serta peserta didik terhadap hasil dari pengembangan prototipe kincir angin. Penelitian ini menggunakan metode Research and Development model 4-D. Teknik analisis data yang digunakan adalah deskriptif kualitatif. Data diperoleh melalui lembar validasi dan angket respon peserta didik. Hasil penelitian menunjukkan bahwa kincir angin vertikal dengan jenis savonius dengan melakukan pengembangan pada bagian bilah baling-baling menggunakan sel surya. Kelayakan prototipe kincir angin meliputi kelayakan desain dan kelayakan produk. Kelayakan desain memiliki kategori sangat baik dan kelayakan produk memiliki kategori baik. Tanggapan guru dan peserta didik terhadap hasil dari pengembangan prototipe kincir angin sebesar 86% dengan kategori sangat baik dan 77,3% dengan kategori baik. Berdasarkan dari hasil penelitian tersebut dihasilkan sebuah produk berupa kincir angin savonius yang dapat berfungsi sebagai media pembelajaran fisika untuk peserta didik. Selain itu, kincir angin tersebut dapat dijadikan sumber energi terbarukan. Kincir angin tersebut mampu menghasilkan energi dari dua sumber yang berbeda dalam satu buah alat, sehingga diharapkan akan mampu menjadi pembangkit listrik tenaga angin dan matahari yang membantu pasokan listrik di Kalimantan Tengah. Development of a prototype as a learning medium in educational institutions that combines two energy sources into one tool system. This study aims to describe the prototype design, the feasibility of the prototype, and the responses of teachers and students to the results of developing a windmill prototype. This study uses the Research and Development 4-D model. The data analysis technique used is descriptive qualitative. Data were obtained through validation sheets and student response questionnaires. The results showed that the vertical windmill with the type of savonius developed the blades of the propeller using solar cells. The feasibility of the windmill prototype includes the feasibility of the design and the feasibility of the product. The feasibility of the design has a very good category and the feasibility of the product has a good category. The responses of teachers and students to the results of the development of the windmill prototype were 86% in the very good category and 77.3% in the good category. Based on the results of the study, a product in the form of a savonius windmill was produced which could function as a medium for learning physics for students. In addition, the windmill can be used as a source of renewable energy. The windmill is capable of producing energy from two different sources in one device, so it is hoped that it will be able to become wind and solar power plant that helps supply the electricity in Central Kalimantan.
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Shrestha, Jagan Nath, and Debendra Bahadur Raut. "Assessment of Urban Rooftop Grid Connected Solar Potential in Nepal." Journal of the Institute of Engineering 15, no. 3 (October 16, 2020): 285–91. http://dx.doi.org/10.3126/jie.v15i3.32199.
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The power shortage problem faced by Nepal since last two decades is one of the major hurdles for its socio-economic development. At present load shedding is being managed by significant import of electricity from India thus increasing trade deficit of Nepal. The accelerated alternative methods of generation of electricity in Nepal need to be explored. This paper assesses the potential of rooftop solar Photovoltaic (PV) system in residential buildings in their major cities namely Kathmandu valley, Pokhara and Biratnagar of Nepal. The data indicated in this paper are collected from the predefined set of questionnaire and field survey in the randomly sampled households in 2016. Form the quantitative analysis of the data, it is found that the average roof top area available for PV installation in residential buildings are 14.5 sq.m, 12.45 sq.m and 19 sq.m for Kathmandu, Pokhara and Biratnagar cities respectively. Considering 557,027 residential buildings in Kathmandu; 77,523 in Pokhara and 33,075 in Biratnagar, total PV power potential is estimated to be 810 MWp, 96.5 MWp and 63.5 MWp in respective cities. To estimate the energy potential the annual average peaksun hours considered are 5.54, 5.58 and 5.13 for Kathmandu, Pokhara and Biratnagar city respectively, data taken from Solar and Wind Resource Assessment (SWERA) report. The total power potential in all three cities is found to be 970 MWp which could generate 1,310 GWh that comes out to be 24% of the electricity sold by Nepal Electricity Authority (NEA) in fiscal year 2017/18. If shade free roof top space available of the 50% residential buildings are utilized for PV installation (333,762 numbers), about 12% of the Nepal’s utility electricity sold in the fiscal year 2017/18 could be saved annually. The technical barriers for the grid connection of roof top solar is not a major issue now as NEA has set the guidelines for it.
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Baharom, Anis Sabirin. "Solar Thermal Installation Capacity: Malaysia Small Medium Enterprises with and Without Fiscal Incentives." International Journal of Advanced Trends in Computer Science and Engineering 8, no. 1.6 (December 15, 2019): 377–83. http://dx.doi.org/10.30534/ijatcse/2019/5581.62019.
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Castillo-Ramírez, Alejandro, and Diego Mejía-Giraldo. "Measuring Financial Impacts of the Renewable Energy Based Fiscal Policy in Colombia under Electricity Price Uncertainty." Sustainability 13, no. 4 (February 13, 2021): 2010. http://dx.doi.org/10.3390/su13042010.
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This paper analyses the financial implications, from the point of view of an investor in renewable energy, which sells the energy for an uncertain price of electricity and decides to take advantage of the Colombian tax policy over the renewable energy. The policy, known as Investment Tax Allowance (ITA), encourages installation of renewable projects in a country traditionally dominated by hydro power. Price is modeled as a non-stationary autoregressive stochastic process with normally distributed error terms. Costs, and uncertain revenue and taxes are considered to assess the financial impact on a solar project when the policy is implemented. Since impact varies according to project ownership, two cases are evaluated: a generation company (GENCO-1) that only owns the solar project; and, an existent generation company (GENCO-2) that owns a portfolio of projects. Results indicate that if ITA is applied, it is likely that the GENCO-1 cannot take the full advantage of the incentive, as opposed to the GENCO-2. Although this policy might not satisfy planner objectives since it does not guarantee the construction of significantly high capacity of new renewable energy projects, it definitely represents an attractive mechanism to decrease tax obligations at the GENCO-2 level. Finally, a theoretical analysis shows that investment cost affects the mean of the present value; whereas tax rates impacts both its mean and standard deviation.
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Saldarriaga-Loaiza, Juan D., Sergio D. Saldarriaga-Zuluaga, Jesús M. López-Lezama, Fernando Villada-Duque, and Nicolás Muñoz-Galeano. "Optimal Structuring of Investments in Electricity Generation Projects in Colombia with Non-Conventional Energy Sources." Sustainability 14, no. 22 (November 15, 2022): 15123. http://dx.doi.org/10.3390/su142215123.
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Taking full advantage of fiscal and economic incentives has become a complex process for investors, who must find the right portfolio or capital structure to obtain viable and competitive generation projects. In this context, this paper proposes a methodology for the optimal structuring of investments in non-conventional energy sources (NCRES) considering fiscal and economic incentives. Three methods were evaluated: (1) levelized cost of electricity (LCOE) combined with three metaheuristic techniques; (2) discounted cash flow (DCF) with Monte Carlo simulation and value at risk (VaR); and (3) real options with Black and Scholes. The proposed approach presents as the main financial indicator the generation cost (GC), as well as three other financial indicators, namely: net present value (NPV), value at risk (VaR) and net present value for real options (NPVRO). The propose approach allows for defining different investment portfolios from where an investor can choose; each of which minimizes the GC. Furthermore, the methodology can be adapted to countries with different policies and fiscal incentives for the development of NCRES projects. The results show that for each metaheuristic, an optimal capital structure that minimizes GC is obtained; in this way, a GC of 0.032 (USD/kWh) is achieved for solar photovoltaic technology, with a reduction of 49.2%, when tax incentives are considered.
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Votano, Lucia. "Origin and status of the Gran Sasso INFN Laboratory." Modern Physics Letters A 29, no. 36 (November 20, 2014): 1430040. http://dx.doi.org/10.1142/s0217732314300407.
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The Gran Sasso National Laboratory of INFN (LNGS) is the largest underground laboratory for astroparticle physics in the world. Located in Italy between the cities of L'Aquila and Teramo, 120 km far from Rome, is a research infrastructure mainly dedicated to astroparticle and neutrino physics. It offers the most advanced underground facility in terms of dimensions, complexity and completeness of its infrastructures. LNGS is one of the four national laboratories run by the Istituto Nazionale di Fisica Nucleare (INFN). The scientific program at LNGS is mainly focused on astroparticle, particle and nuclear physics. The laboratory presently hosts many experiments as well as R&D activities, including world-leading research in the fields of solar neutrinos, accelerator neutrinos (CNGS neutrino beam from CERN to Gran Sasso), dark matter (DM), neutrinoless double beta decay (2β0ν) and nuclear cross-section of astrophysical interest. Associate sciences like earth physics, biology and fundamental physics complement the activities. The laboratory is operated as an international science facility and hosts experiments whose scientific merit is assessed by an international advisory Scientific Committee. A review of the main experiments carried out at LNGS will be given, together with the most recent and relevant scientific results achieved.
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Megawati, Eka, Arham Ardiansyah, Amirul Mukminin, Dedora Ariyani, Yuniarti Yuniarti, and Mohammad Lutfi. "Analisis Sifat Fisika dan Nilai Keekonomian Minyak Goreng Bekas Menjadi Biodiesel Dengan Metode Transesterifikasi." al-Kimiya 9, no. 1 (July 1, 2022): 48–54. http://dx.doi.org/10.15575/ak.v9i1.17962.
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Biodiesel merupakan bahan bakar alternatif pengganti solar yang berasal dari bahan nabati seperti minyak goreng bekas. Minyak goreng bekas adalah limbah dari sisa penggorengan, biasanya dibuang karena sudah digunakan lebih dari satu kali. Transesterifikasi merupakan reaksi antara trigliserida yang terkandung dalam minyak nabati atau lemak hewan dengan alkohol untuk membentuk alkil ester. Penelitian ini bertujuan untuk menganalisis sifat fisika dan nilai keekonomian minyak goreng bekas menjadi biodiesel dengan metode transesterifikasi. Bahan limbah yang digunakan merupakan minyak goreng. Analisis fisika dilakukan dengan melakukan pengujian karakteristik biodiesel meliputi % FFA, angka asam, gliserol, kandungan air, massa jenis, pH, rendemen dan warna. Nilai karakteristik biodisel pada sampel 1 yaitu: FFA sebesar 0,65 %, angka asam 0,42 mg, gliserol 59 mL, kadar air 0,006 %, rendemen 0,83 %, massa jenis 852 kg/m3, pH 7 dan menghasilkan warna kuning emas, sedangkan nilai karakteristik biodisel pada sampel 2 yaitu: FFA sebesar 0,56 %, angka asam 0,50 mg, gliserol 58 mL, kadar air 0 %, rendemen 0,83 %, massa jenis 845 kg/m3, pH 7 dan menghasilkan warna kuning emas. Nilai karakteristik biodisel pada sampel 3 yaitu: FFA sebesar 0,65 %, angka asam 0,50 mg, gliserol 59 mL, kadar air 0,07 %, rendemen 0,78 %, massa jenis 847 kg/m3, pH 7 dan menghasilkan warna kuning emas. Pengolahan minyak goreng bekas sebanyak 300 L/bulan akan menghasilkan biodiesel 246 L/bulan @Rp. 9.000 = Rp. 2.214.000 dan gliserol 23 L/bulan @Rp. 3.000 = Rp. 86.250. Sehingga diperoleh total pendapatan = Rp.2.300.250/bulan. Sementara itu, biaya produksi berupa penggunaan listrik, pembelian pelarut dan katalis sebesar Rp.1.370.500/bulan. Sehingga Hasil analisis keekonomian menunjukkan bahwa pembuatan biodiesel skala industri kecil layak diproduksi dengan nilai keuntungan mencapai Rp.929.750/bulan.
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Rafiq, Muhammad Aftab, Liguo Zhang, and Chih-Chun Kung. "A Techno-Economic Analysis of Solar Energy Developmental Under Competing Technologies: A Case Study in Jiangxi, China." SAGE Open 12, no. 2 (April 2022): 215824402211081. http://dx.doi.org/10.1177/21582440221108166.
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Energy sustainability, as well as climate change mitigation, is an immediate challenge facing the world, especially for large developing countries such as China and India. This study analyses the solar photovoltaic (PV) potential of Jiangxi, China, using three dominant technologies including conventional PV, PV/PCM (Phase Change Material), and PV/T-PCM (Thermal-Phase Change Material). We employ a lifecycle assessment by investigating the spatial differences of radiation conversion rates across major cities. Two sets of scenario analyses are also examined: (1) fixed installation capacity; and (2) fixed government investment. Each set has three alternative scenarios to distinguish the power generation potential, investment requirement. The results show that under the “fixed capacity” scenarios, the conventional PV can generate 313 GWh/year, and the PV/T-PCM can yield more than 340 GWh/year. The result would change substantially under the “fixed investment” scenarios, in which the annual solar power from conventional PV is more than 1,736 GWh. The scenario analysis points out that if the total investment rather than total capacity is fixed, the power generation from solar PV systems can be maximized, but the total cost would increase considerably as well. Amortization of the installation costs that would potentially alleviate the firms’ fiscal burden is also discussed.
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Yuwana, Lila, Susilo Indrawati, Sudarsono Sudarsono, Niniet Indah Arvitrida, Iim Fatimah, and Diky Anggoro. "Sistem Kontrol Otomatis Berbasis IoT dan Sel Surya Untuk Budidaya Jamur Tiram di Desa Selorejo, Jombang." Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) 1, no. 1 (June 17, 2021): 1. http://dx.doi.org/10.20527/ilung.v1i1.3505.
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Lila Yuwana*1, Susilo Indrawati2, Sudarsono3, Niniet Indah Arvitrida4, Iim Fatimah5, Diky Anggoro61,2,3,5,6Departemen Fisika, Institut Teknologi Sepuluh Nopember4Departemen Teknik dan Sistem Industri, Institut Teknologi Sepuluh Nopember*e-mail: lila@physics.its.ac.id1, susilo_i@physics.its.ac.id2 , sudars29@gmail.com3, arvietrida@gmail.com4, iim.fatimah.its@gmail.com5, anggorodiky@gmail.com6 Received: 31 Mei 2021/ Accepted: 16 Juni 2021 Abstract Pleurotus ostreatus cultivation has been developed using wood sawdust as a planting medium in Selorejo Village, Mojowarno District, Jombang Regency, East Java. Previous research, sawdust can function very well as a growing medium for oyster mushrooms, which is indicated by the abundance of yields. In addition, the use of sawdust can also overcome the problem of abundant waste from the furniture industries in Selorejo Village. In this community service that will be carried out, it aims to create an internet-based or IoT (Internet of Things) and solar cell-based control system as a resource for the entire system. The IoT system designed and built in abdimas is used to see the development of ostreatus mushrooms in the mushroom house through a webcam that is integrated with the system. Furthermore, through this IoT, humidity and temperature settings can be done anywhere through the android application and internet browser. The power system that uses solar cells in this service is taking into account the limited electrical power in the mushroom house in Selorejo Village, Mojowarno Jombang. All systems that are designed and will be built in this service are portable, in other words, they can be easily moved around. With this service, it is hoped that Micro, Small and Medium Enterprises (MSMEs) in ostreatus cultivation can increase the efficiency of the ostreatus mushroom growing process because monitoring the process of growing ostreatus mushrooms can be done anywhere and anytime, through an integrated IoT system. In addition, it is hoped that other MSMEs can adopt the automation system for controlling humidity and temperature for ostreatus mushroom cultivation based on IoT and solar cells. Key words: IoT (Internet of Things), solar cells, mushroom houses, ostreatus mushrooms, sensors and monitoring
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Al-Hamadani, Sulala. "Solar energy as a potential contributor to help bridge the gap between electricity supply and growing demand in Iraq: A review." International Journal of Advances in Applied Sciences 9, no. 4 (December 1, 2020): 302. http://dx.doi.org/10.11591/ijaas.v9.i4.pp302-312.
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<p><span>The pivotal role of electricity is as an enabler for every other sector in any economy. Adequate electricity supply is a vital input for the economic growth and in a range of key industries. Unfortunately, the electricity sector in Iraq has been an unsustainable fiscal burden on successive Iraqi governments yet it has not been able to meet the growing demand. Iraq’s electricity sector and government’s decision makers should look for a long-term solutions and strategies to meet the current and future demand, by taking important steps towards fostering a reliable, affordable, and sustainable electricity system in the years and decades to come. Also, Iraqi government and ministry of electricity in particular should understand that electricity is basic service and right of Iraqis, and many nations have overcome this kind of problem decades ago. Overcoming this problem will help refueling Iraqi economy and enable it to stand on its feet again. Renewable energy resources, and solar in particular could be part of the solution. This paper aims to highlight the importance of solar energy in Iraq as a potential contributor to help bridge the gap between electricity supply and growing demand. Also, it discusses the solar energy opportunities with challenges facing other renewable energy sources in Iraq.</span></p>
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Kurniawan, Dwi Ardianta, Arif Wismadi, and Artidiatun Adji. "Kompensasi Pengurangan Subsidi Bahan Bakar Minyak Melalui Insentif Fiskal Pemerintah Pusat kepada Pemerintah Daerah." JKAP (Jurnal Kebijakan dan Administrasi Publik) 19, no. 2 (December 16, 2015): 93. http://dx.doi.org/10.22146/jkap.7383.
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Subsidi Bahan Bakar Minyak di Indonesia meningkat secara tajam dalam beberapa tahun terakhir dengan rata-rata peningkatan sebesar 18,29% per tahun dalam periode 2006 – 2013. Besaran subsidi mengambil porsi antara 22% hingga 39,7% terhadap APBN pada periode tersebut. Tingginya besaran subsidi tersebut menimbulkan beban berat pada anggaran pemerintah pusat. Salah satu upaya untuk mengurangi beban pemerintah adalah dengan mengurangi jumlah subsidi yang diberikan. Pengurangan subsidi tersebut harus dikembalikan kepada masyarakat dalam bentuk yang lebih produktif, salah satunya dalam bentuk insentif fiscal pemerintah pusat kepada pemerintah daerah.
Mekanisme pemberian insentif kepada pemerintah daerah dapat dilakukan dengan mempertimbangkan kebijakan dan program yang dijalankan oleh pemerintah daerah untuk mengurangi konsumsi BBM. Metode perhitungan besaran insentif dapat dilakukan dengan beberapa skenario dengan mempertimbangkan penghematan anggaran pemerintah karena pengurangan subsidi dan perubahan Dead Weight Loss (DWL) sebagai kerugian yang timbul karena alokasi anggaran yang tidak tepat.
Hasil perhitungan besaran insentif fiskal berdasarkan skenario harga BBM memperlihatkan adanya perbedaan cukup signifikan antara skenario 1 yang berbasis besaran subsidi yang dikeluarkan pemerintah, dengan skenario 3 yang berbasis pada besaran DWL. Alternatifnya, dapat diperhitungkan besaran insentif berdasarkan proporsi pengurangan DWL dibandingkan penghematan anggaran. Hasil perhitungan berdasarkan skenario ini memperlihatkan besaran insentif antara Rp1,2 tilyun (pada harga bensin Rp7.100) hingga Rp3,3 trilyun (pada harga bensin Rp9.500 atau subsidi dicabut). Sementara pada solar, besarannya antara Rp1,08 trilyun (pada harga solar Rp7.100) hingga Rp2,97 trilyun (pada harga solar Rp9.500 atau subsidi dicabut). Besaran ini relatif moderat dan dapat menjadi acuan dalam pemberian insentif kepada daerah.
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Kofi, Daniel, Amevi Acakpovi, Patrick Adjei, Robert Sowah, George K. Aggrey, Godfred Tay, Mustapha Sulley, and Maxwell Afonope. "Innovative design of grid connected solar/diesel hybrid system using RETScreen software." IOP Conference Series: Earth and Environmental Science 1042, no. 1 (July 1, 2022): 012018. http://dx.doi.org/10.1088/1755-1315/1042/1/012018.
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Abstract Accessibility to dependable energy resource is vital to the emerging economy to function appropriately in this contemporary world for both residential and commercial purposes. Technological advancement has opened avenues for more sophisticated technologies to combine multiple energy sources to generate affordable electricity for residential and industrial purposes. The study, therefore aims at analyzing the fiscal benefits of hybrid Solar PV and Diesel Generator (DG) (PV-DG) grid-connected system using RETSceen software. The study focused on a specific location, J. A. Plant Pool Ghana Limited, warehouse Department. The study recommended and proposed an effective design of a hybrid PV-DG grid connected electricity supply for the warehouse Department. The economic viability of the project and the payback period obtained through computation were very attractive. Also, the total revenue of electricity exported to the grid annually and GHG emission reduction were within the standard benchmark. The study finally concurred that renewable energy sources such as solar when hybridized with any other energy systems, lead to a noticeable electrical cost reduction. Therefore, this system design provides multiple benefits, including; improved reliability, reduced emission and significant cost reduction.
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SAPUTRO, BUDI. "ANALISIS KEANDALAN GENERATOR SET SEBAGAI POWER SUPPLY DARURAT APABILA POWER SUPPLY DARI PLN MENDADAK PADAM DI MORODADI POULTRY SHOP BLITAR." Jurnal Qua Teknika 7, no. 2 (September 14, 2017): 17–25. http://dx.doi.org/10.35457/quateknika.v7i2.239.
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Generator Set terdiri atas Mesin Engine (Motor Penggerak) dan juga Generator / Alternator, seperti yang telah di jelaskan sebelumnya. Mesin Engine yang satu ini menggunakan bahan bakar berupa Solar (Mesin Diesel) atau dapat juga menggunakan Bensin, sedangkan untuk Generatornya sendiri merupakan sebuah gulungan kawat yang di buat dari tembaga yang terdiri atas kumparan statis atau stator dan di lengkapi pula dengan kumparan berputar atau rotor. Dalam proses kerjanya, menurut ilmu fisika, Engine memutar Rotor dalam sebuah Generator yang selanjutnya hal ini menimbulkan adanya Medan Magnet pada bagian kumparan Generator. Selanjutnya Medan Magnet ini kemudian akan melakukan interaksi dengan Rotor yang kemudian akan berputar dan akan menghasilkan sebuah arus listrik dimana hal ini sesuai dengan hukum Lorentz..Pentingnya manfaat dari Mesin Generator Set ini menjadi salah satu alasan mengapa Generator Set atau Genset ini sangat di kenal oleh masyarakat luas, jadi apa bila Anda memiliki usaha yang membutuhkan Mesin Genset ini, jangan sampai mengabaikan Genset ini karena Mesin Generator Set ini dapat memperlancar usaha anda dan menjaga dari situasi yang tidak terduga.
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SAPUTRO, BUDI. "ANALISIS KEANDALAN GENERATOR SET SEBAGAI POWER SUPPLY DARURAT APABILA POWER SUPPLY DARI PLN MENDADAK PADAM DI MORODADI POULTRY SHOP BLITAR." JURNAL QUA TEKNIKA 7, no. 2 (October 27, 2017): 17–25. http://dx.doi.org/10.30957/quateknika.v7i2.239.
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Generator Set terdiri atas Mesin Engine (Motor Penggerak) dan juga Generator / Alternator, seperti yang telah di jelaskan sebelumnya. Mesin Engine yang satu ini menggunakan bahan bakar berupa Solar (Mesin Diesel) atau dapat juga menggunakan Bensin, sedangkan untuk Generatornya sendiri merupakan sebuah gulungan kawat yang di buat dari tembaga yang terdiri atas kumparan statis atau stator dan di lengkapi pula dengan kumparan berputar atau rotor. Dalam proses kerjanya, menurut ilmu fisika, Engine memutar Rotor dalam sebuah Generator yang selanjutnya hal ini menimbulkan adanya Medan Magnet pada bagian kumparan Generator. Selanjutnya Medan Magnet ini kemudian akan melakukan interaksi dengan Rotor yang kemudian akan berputar dan akan menghasilkan sebuah arus listrik dimana hal ini sesuai dengan hukum Lorentz..Pentingnya manfaat dari Mesin Generator Set ini menjadi salah satu alasan mengapa Generator Set atau Genset ini sangat di kenal oleh masyarakat luas, jadi apa bila Anda memiliki usaha yang membutuhkan Mesin Genset ini, jangan sampai mengabaikan Genset ini karena Mesin Generator Set ini dapat memperlancar usaha anda dan menjaga dari situasi yang tidak terduga.
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Condor Ames, Juan Carlos. "El niño Fiscal como Autoridad Tradicional Comunal en Santa Cruz de Ila." Prospectiva Universitaria 11, no. 1 (August 8, 2020): 100–104. http://dx.doi.org/10.26490/uncp.prospectivauniversitaria.2014.11.11.
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La comunidad campesina de Santa Cruz de Ila, basa su estructura organizacional en la comunidad, este centro poblado se encuen-tra ubicado al sureste del distrito de Pazos, de la provincia de Tayacaja, Región Huan-cavelica, se encuentra a una altitud de 3658 m.s.n.m. Siendo su actividad principal el cul-tivo de maíz y otros cereales, además de la papa en sus distintas variedades. Dentro del patrimonio inmaterial comunal se encuentran las diversas fiestas patronales, siendo la prin-cipal la del 8 de octubre alusiva a la Virgen del Rosario y la fiesta alusiva al Niño Jesús el 26 de Diciembre de cada año. En tanto el sistema de autoridades está consignado bajo el régimen comunal, constituyendo el niño fiscal una autoridad tradicional comunal en este centro poblado, constituyéndose en un autoregulador de la vida organizacional de esta comunidad. Esta festividad del Niño Jesús funciona a tra-vés del sistema de cargos que está esta ritua-lizado para ir ejercitando a los niños a partir de los 7 años en el proceso iniciático como futura autoridad en el orden comunal. La acción rituálica de los niños fiscales obe-decen a una determinada etapa cíclica del calendario agrícola solar al que denominan el año Wuata durante el mes de marzo, tiempo sagrado y asociado al recultivo de maíz por ser zona maicera por excelencia debido a que se encuentra en la zona baja entre el piso quechua y chala, zona microclimática y tem-plada dentro del ecosistema de la subcuenca del río Pazos.
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Cóndor Ames, Juan Carlos. "El niño Fiscal como Autoridad Tradicional Comunal en Santa Cruz de Ila." Prospectiva Universitaria 11, no. 1 (June 4, 2017): 100. http://dx.doi.org/10.26490/uncp.1990-7044.2014.1.279.
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<p>La comunidad campesina de Santa Cruz de Ila, basa su estructura organizacional en la comunidad, este centro poblado se encuentra ubicado al sureste del distrito de Pazos, de la provincia de Tayacaja, Región Huancavelica, se encuentra a una altitud de 3658 m.s.n.m. Siendo su actividad principal el cultivo de maíz y otros cereales, además de la papa en sus distintas variedades. Dentro del patrimonio inmaterial comunal se encuentran las diversas fiestas patronales, siendo la principal la del 8 de octubre alusiva a la Virgen del Rosario y la fiesta alusiva al Niño Jesús el 26 de Diciembre de cada año. En tanto el sistema de autoridades está consignado bajo el régimen comunal, constituyendo el niño fiscal una autoridad tradicional comunal en este centro poblado, constituyéndose en un autoregulador de la vida organizacional de esta comunidad.</p><p>Esta festividad del Niño Jesús funciona a través del sistema de cargos que está esta ritualizado para ir ejercitando a los niños a partir de los 7 años en el proceso iniciático como futura autoridad en el orden comunal.</p><p>La acción rituálica de los niños fiscales obedecen a una determinada etapa cíclica del calendario agrícola solar al que denominan el año Wuata durante el mes de marzo, tiempo sagrado y asociado al recultivo de maíz por ser zona maicera por excelencia debido a que se encuentra en la zona baja entre el piso quechua y chala, zona microclimática y templada dentro del ecosistema de la subcuenca del río Pazos.</p>
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Tan, Verity, Pablo R. Dias, Nathan Chang, and Rong Deng. "Estimating the Lifetime of Solar Photovoltaic Modules in Australia." Sustainability 14, no. 9 (April 28, 2022): 5336. http://dx.doi.org/10.3390/su14095336.
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Determining the lifetime of solar photovoltaic modules is integral to planning future installations and ensuring effective end-of-life management. The lifetime of photovoltaic modules is most commonly considered to be 25 years based on performance guarantees of 80% power output after 25 years of operation; however, influences including climatic conditions, social behaviour, fiscal policy, and technological improvements have the potential to prompt early replacement. Therefore, this work aims to estimate the operating lifetime of photovoltaic panels more accurately in Australia by considering a variety of technical, economic, and social reasons for decommissioning. Based on a range of sources including government organisations, other policymakers, regulators and advisors, energy suppliers, researchers, recyclers, and manufacturers, three lifetime models—power decrease, damage and technical failures, and economic motivation—were developed and then weighted in three scenarios to form overall views of panel lifetime in Australia. In addition, it was concluded that the module lifetime will vary considerably between countries due to differences in market factors. Therefore, these results specifically address Australia as most of the input data were sourced from Australian industry reports and Australian photovoltaic systems and interpreted within the context of the Australian photovoltaic market. However, the methodology of estimating lifetime based on both technical and non-technical factors can be applied to other scenarios by using country-specific data. With the popularity of photovoltaic technology beginning in the early 2010s and given the practical lifetimes of 15–20 years found in this work, Australia will need to act swiftly within the next three years to responsibly manage the looming solar panel waste.
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Indora, Sunil, and Tara C. Kandpal. "A framework for analyzing impact of potential financial/fiscal incentives for promoting institutional solar cooking in India." Renewable Energy 143 (December 2019): 1531–43. http://dx.doi.org/10.1016/j.renene.2019.05.097.
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Ernidawati, Ernidawati, Muhammad Sahal, Nayla Fauza, Dina Syaflita, and Defni Satria. "Pengembangan Alat Pemurni Air Laut sebagai Media Pembelajaran Fisika SMA pada Materi Pemanasan Global." Journal of Natural Science and Integration 4, no. 2 (October 31, 2021): 222. http://dx.doi.org/10.24014/jnsi.v4i2.14529.
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ABSTRACTThe purpose of this study was to develop a sea water purifier and test the validity of a sea water purifier so that it can be used as a medium for high school physics learning on global warming material. The development model carried out is the ADDIE model. The ADDIE model consists of Analysis, Design, Development, Implementation and Evaluation. The data obtained in the form of qualitative and quantitative data. Qualitative data is used to obtain the value of preliminary analysis and validation of tools used in learning. Quantitative data is used to obtain empirical test values by comparing the results of measuring tools made with standard measuring instruments. Based on the results of the empirical test, it was found that the fresh water produced by the developed seawater purifier has good quality because it meets water standards that are suitable for consumption. Based on the research conducted, it was found that the average fresh water produced was 50.33 mL from 1 liter of seawater which was dried for 6 hours per day, and the decrease in salt content of seawater after using this seawater purifier that utilized solar power was 100%. . Based on the results of expert validation which refers to the functionality of the tool, learning elements, ease of use, aesthetics and construction of the tool, the average value of the validity index is 3.78 with a very high category. So it can be concluded that the developed seawater purifier is valid and can be used as a medium for learning Physics on global warming material.Keywords: sea water purifier, learning media, global warming.ABSTRAK Tujuan penelitian ini adalah untuk mengembangkan alat pemurni air laut dan menguji validitas alat pemurni air laut agar dapat digunakan sebagai media pembelajaran Fisika SMA pada materi pemanasan global. Model pengembangan yang dilakukan adalah model ADDIE. Model ADDIE terdiri dari Analysis, Design, Development, Implementation dan Evaluation. Data yang diperoleh berupa data kualitatif dan kuantitatif. Data kualitatif digunakan untuk mendapatkan nilai analisis pendahuluan dan validasi alat yang digunakan dalam pembelajaran. Data kuantitatif digunakan untuk memperoleh nilai uji empiris dengan membandingkan hasil ukur alat yang dibuat dengan alat ukur yang sudah standard. Berdasarkan hasil uji empiris diperoleh bahwa bahwa air tawar yang dihasilkan oleh alat pemurni air laut yang dikembangkan memiliki kualitas yang baik karena memenuhi standar air yang layak dikonsumsi. Berdasarkan penelitian yang dilakukan, diperoleh rata-rata air tawar yang dihasilkan 50,33 mL dari 1 liter air laut yang dijemur selama 6 jam per harinya, dan penurunan kadar garam air laut setelah menggunakan alat pemurni air laut yang memanfaatkan tenaga surya ini sebesar 100%. Berdasarkan hasil validasi pakar yang mengacu pada keberfungsian alat, unsur pembelajaran, kemudahan penggunaan, estetika dan konstruksi alat diperoleh nilai rata-rata indeks validitas 3,78 dengan kategori sangat tinggi, sehingga dapat disimpulkan bahwa alat pemurni air laut yang dikembangkan bernilai valid dan dapat digunakan sebagai media pembelajaran Fisika pada materi pemanasan global.Kata kunci: alat pemurni air laut, media pembelajaran, pemanasan global.
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Weihong, HAN, PAN Lingling, and YANG Xinjiletua. "Research on the Economic Impact of New Energy Fiscal and Tax Policies Based on CGE Model -- A Case from Inner Mongolia." E3S Web of Conferences 53 (2018): 01044. http://dx.doi.org/10.1051/e3sconf/20185301044.
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The development of new energy is not only an objective need for sustainable development of mankind, but also an important breakthrough for the world to foster new economic growth points. The focus of this article is on what kind of fiscal and tax policies the government implements can better guide the development of new energy and have a more favorable impact on the economy. This paper, taking wind power and solar photovoltaic power industries in the Inner Mongolia as an example, using the dynamic 3ED-CGE model, explored the economic impacts of different financial subsidies and preferential tax policies on new energy enterprises. And then this paper provided suggestions for the formulation of fiscal and tax policies. The study founded that compared with the fixed subsidy mechanism financial subsidies by the fall-off mechanism could be better to promote the growth of GDP, residents' welfare and employment. If the government didn't subsidize the new energy electric power's sales price to network after 2020, it would not have a negative impact. The 15% income tax rate was more effective in promoting the development of economic than 25%. 8.5% and 6% value-added tax rate exerted similar effects on the economy, but 6% value-added tax rate had a significant promotion on optimized adjustment the consumption structure of fossil energy and electric energy.
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Milne, Janet E., and Marta Villar. "Renewable Electricity and Tax Expenditures: Lessons from Two Countries." Intertax 48, Issue 4 (April 1, 2020): 369–88. http://dx.doi.org/10.54648/taxi2020034.
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Both the United States (US) and Spain have offered tax expenditures to support use of wind and solar power to generate electricity at the utility scale. These tax expenditures provide an opportunity to consider design issues, the relationship between tax expenditures and other non-fiscal policy instruments and the influence of legal frameworks. The article explores tax expenditures that have been in effect in the US and Spain. In the US, the federal government since 1992 has provided an income tax credit for the production of electricity from renewable sources, and more recently the alternative of an investment tax credit. In Spain, since the 1990s there has been an important debate on the best way to promote renewable energies; different tax incentives, subsidies, and regulated prices have been used in one way or another over time. Drawing on these two case studies, the comparative analysis highlights lessons that emerge about the role of taxation as a regulatory instrument and its consistency with other policies in shifting from fossil fuels to renewable energy in order to reduce greenhouse gas emissions that contribute to climate change. These lessons can transcend national boundaries and contribute to an understanding of tax expenditures more generally. renewable energy, wind, solar, tax expenditures, incentives, feed-in tariffs, market-based instruments, environmental protection, environmental taxation
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Khan, Zaffar, Kathryn Siriram, and Kyren Greigg. "Fiscal incentives promoting REEE measures in Trinidad and Tobago." World Journal of Science, Technology and Sustainable Development 11, no. 3 (July 29, 2014): 196–213. http://dx.doi.org/10.1108/wjstsd-06-2014-0013.
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Purpose – Dependence on foreign energy supplies have resulted in some islands successfully harnessing alternative and renewable energy (RE) sources in order to provide a small degree of self-sufficiency. However, the development of Trinidad and Tobago's (T&T's) RE industry has stagnated largely due to the existence of substantial energy subsidies, which present cheap fuel and electricity prices thus providing a disincentive to RE investment. The purpose of this paper is to seek to re-enforce the necessity for an indissoluble government intervention in the establishment of well-designed, coordinated and innovative public-private partnerships for a successful RE industry in T&T. Design/methodology/approach – This paper is based on a review of relevant social and economic literary sources; the research topic has been meticulously investigated. Findings – Initial outcomes indicate that the principal facilitators of RE proliferation in the Caribbean, and more so T&T, will require: gradual reduction of the energy subsidy; declining project costs via fiscal incentives and grant financing; expectation of beneficial rates of return on investment through the guarantee of optimal prices for renewable electricity or the revenue gained from the sale of carbon credits; and capacity building, institutional strengthening and implementation of appropriate legislative and regulatory instruments which provide open access to the national grid. Research limitations/implications – With the exception of T&T, Caribbean nations are heavily dependent on oil and gas imports to meet their primary energy requirements. The investigation conducted has limited documentation on cases of a similar nature within the region. The outcome of the steps identified above are based on conjecture using information gained from international situations. Practical implications – The study helps clarify the crucial role of T&T's government in the successful development of the RE industry. Resources and earnings should be used to develop T&T's infant RE industry and hence reduce the carbon footprint of the nation. Originality/value – Past attempts by the government to promote RE an energy efficiency in T&T have been passive and prevaricated. In addition to outlining the existing fiscal initiatives available to the population, this paper provides short-, medium- and long-term recommendations for the sustainability of RE in T&T. While subsidy reform, among others, poses a challenge it is nonetheless imperative if T&T is to move forward. With the abundance of solar, wind and waste-to-energy resources there is great potential for a successful RE industry in T&T. More than just policy will be required to drive change; greater commitment by the government to ensure the sustainability and economic viability of T&T while also attempting to alter the mindset of the citizenry to act as effective stewards of the island's resources for the well-being of future generations.
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Chandrasekar, B., and Tara C. Kandpal. "Effect of financial and fiscal incentives on the effective capital cost of solar energy technologies to the user." Solar Energy 78, no. 2 (February 2005): 147–56. http://dx.doi.org/10.1016/j.solener.2004.05.003.
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Deviarti, Holly, and Melati Ayu. "Analisis Cost Volume Profit sebagai Alat Bantu Manajemen dalam Rangka Perencanaan Laba dengan Penerapan Teori Kendala pada PT Skylite Surya Internusa." Binus Business Review 2, no. 1 (May 30, 2011): 527. http://dx.doi.org/10.21512/bbr.v2i1.1160.
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PT Skylite Solar Internusa is an industrial company that produces the houses lights and panel box. The purpose of this study is to help companies classify costs according to the behavior of costs, determine the calculation of the break event point of multiproduct, profit planning, and to overcome the constraints that occured in the company. The authors obtained data directly to the company's research and interviews with relevant parties, such as the production and the accounting department. The increase in profit in the fiscal year period 2009 due to demand for homes increased light and panel box. It can be concluded that the application of Cost-Volume-Profit analysis by using the break event point multiproduct can help management to determine how much sales volume may decline from the volume of sales is budgeted by the company and the company can make profit plan in 2010.
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Nugrahadi, Dodon Turianto, Muhammad Itqan Mazdadi, Triando Hamonangan Saragih, and Totok Wianto. "Penerapan Kolam Terpal Bioflok Ikan Lele Tenaga Surya bagi Warga Aliran Anak Sungai Kemuning di Kelurahan Loktabat Utara." Jurnal Pengabdian ILUNG (Inovasi Lahan Basah Unggul) 1, no. 1 (June 16, 2021): 9. http://dx.doi.org/10.20527/ilung.v1i1.3506.
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Dodon Turianto Nugrahadi*1, Muhammad Itqan Mazdadi 2, Triando Hamonangan S3, Totok Wianto41,2,3,4 Universitas Lambung Mangkurat1,2,3Program Studi Ilmu Komputer, FMIPA, Universitas Lambung Mangkurat4Program Studi Fisika, FMIPA, Universitas Lambung Mangkurat*e-mail: dodonturianto@ulm.ac.id1, mazdadi@ulm.ac.id2,triando.saragih@ulm.ac.id3, totokwianto@ulm.ac.id4Received: 25 Mei 2021/ Accepted: 16 Juni 2021 AbstractPeople on the side river of the Kemuning river in the North Loktabat sub-district have not utilized the river water as a source of fisheries business. With river water sources for use as fisheries, it can provide alternative livelihoods for people on the side river of the Kemuning river. However, if they use fishery media such as keramba, the water source of the Kemuning river will overflow in the rainy season, besides that if you use a pond, you need a land medium that is less possible.The use of a kolam terpal is one solution to this problem. This pool is made based on the need for a portable pool because it has a radius of 1.5m and a height of 1.5m. Kolam terpal are fish farming using tarpaulin materials as an alternative to soil or concrete ponds. The pool with the base and the sides of the walls is made of tarpaulin. The tarpaulin needed to make this pool is a type of tarpaulin with a material that is pressed so that no leakage occurs. The implementation of this tarpaulin pool using biofloc techniques and by using solar power makes this pool easier to adapt. This tool is equipped with solar panels and an automatic control system. The use of solar panels by utilizing the abundance of solar power and minimizing the expenses of fish farmers without electricity bills to activate pumps for water needs and pond air aerators. In addition, with the biofloc technique, the fish farming mechanism becomes more efficient.The targets and outputs generated from this program, especially for partners, are: the fulfillment of alternative livelihoods with fish farming, and an increase in income of approximately 80%, there is a biofloc kolam terpal equipment with solar panel technology. Keywords: Tarpaulin pool, solar power, bioflok AbstrakWarga di pesisir aliran anak sungai kemuning daerah Kelurahan Loktabat Utara belum memanfaatkan aliran anak sungai sebagai sumber usaha perikanan. Dengan sumber air sungai untuk pemanfaatan sebagai usaha perikanan dapat memberikan alternatif mata pencaharian bagi warga di pesisir aliran anak sungai kemuning. Akan tetapi jika menggunakan media perikanan seperti keramba, sumber air anak sungai kemuning dapat terjadi luapan jika dimusim hujan, selain itu jika menggunakan kolam tambak membutuhkan media lahan yang kurang memungkinkan. Penggunaan kolam terpal menjadi salah satu solusi untuk mengatasi masalah tersebut, kolam ini dibuat berdasarkan kebutuhan akan kolam yang portabel karena ukuranya jari-jari 1,5m dan tinggi 1,5m. Kolam terpal merupakan budidaya ikan dengan menggunakan bahan terpal sebagai alternative kolam tanah atau beton. Kolam yang dasarnya maupun sisi-sisi dindingnya dibuat dari terpal. Terpal yang dibutuhkan untuk membuat kolam ini adalah jenis terpal dengan bahan dipres sehingga tidak terjadi kebocoran. Implementasi kolam terpal ini dengan menggunakan teknik bioflok serta dengan menggunakan tenaga surya maka kolam ini dapat lebih mudah diadaptasikan. Alat ini dilengkapi dengan panel surya dan sistem kontrol otomatis. Penggunaan panel surya dengan memanfaatkan limpahan tenaga surya dan meminimalkan pengeluaran para pembudidaya ikan tanpa adanya tagihan listrik untuk mengaktifkan pompa untuk kebutuhan air dan aerator udara kolam. Selain itu dengan teknik bioflok, mekanisme pembudidayaan ikan menjadi lebih efisien.Target dan luaran yang dihasilkan dari program ini khususnya untuk pihak mitra adalah: terpenuhinya alternatif mata pencaharian dengan budidaya ikan, dan meningkatkan pendapat kurang lebih 80%, terdapat peralatan kolam terpal bioflok dengan teknologi panel surya. Kata kunci: Kolam terpal, tenaga surya, bioflok
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Kurniawan, Dede Trie, Dina Pratiwi Dwi Santi, and Sri Maryanti. "PROGRAM EDUKASI ASTRONOMI MELALUI KEGIATAN STREAM UNTUK SISWA SEKOLAH DASAR DALAM UPAYA PENINGKATAN KESADARAN KEAMANAN PENGAMATAN PERISTIWA GERHANA MATAHARI." Al-Khidmat 3, no. 1 (July 30, 2020): 70–78. http://dx.doi.org/10.15575/jak.v3i1.7651.
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AbstrakPengabdian ini bertujuan untuk mengimplementasikan pembelajaran berbasis STREAM (Sains, Teknologi, Religi, Teknik, Seni dan Matematika) dengan konteks materi gerhana matahari cincin untuk siswa sekolah dasar. Kegiatan edukasi astronomi ini sebagai upaya peningkatan kesadaran keamanan pengamatan dalam mengamati peristiwa gerhana matahari cincin bagi siswa sekolah dasar dengan melalui pendekatan pembelajaran STREAM. Kegiatan ini dimaksudkan sebagai wahana edukasi astronomi dalam menanamkan sebuah pemahaman kesadaran keamanan kepada siswa SD dalam mengamati peristiwa gerhana matahari disalah satu sekolah dasar kota Cirebon dan Bandung. Melalui kegiatan ini diharpkan guru – guru dan siswa dapat lebih eksplorasi kreatfitas pengajaranya, menyenangi, siap berpartsipasi dalam pendidikan astronomi bagi anak sedari dini di pembelajaran IPA menjadi menyenangkan dalam memahami konten fisika mengenai astronomi. Menjelang akhir tahun nanti, tepatnya pada tanggal 26 Desember 2019, masyarakat Indonesia akan mendapat kesempatan untuk menyaksikan sebuah peristiwa astronomi yang langka dan spektakuler, yaitu Gerhana Matahari Cincin. Pengabdian ini diadakan pada bulan November - Desember 2019 di salah satu sekolah dasar kabupaten Bandung dan kota Cirebon. Kegiatan ini dilakukan melalui beberapa tahap termasuk mengenai Implementasi STREAM kepada guru kelas seperti paparan STREAM, penjelasan tentang merancang pembelajaran berbasis STREAM dan Impelementasi Hasil Rancangan pembelajaran berbasis STREAM di kelas yang telah di sepakati untuk dijalankan program. Kuesioner guru dan siswa diberikan untuk mengumpulkan data tentang respon atas pembelajaran STREAM yang di impelemntasikan.AbstractThis service aims to implement STREAM-based learning (Science, Technology, Religion, Engineering, Art and Mathematics) with the context of ring solar eclipse material for elementary school students. This astronomy education activity is an effort to increase awareness of observation security in observing ring solar eclipse events for elementary school students through the STREAM learning approach. This activity is intended as a vehicle for astronomical education in instilling an understanding of security awareness to elementary students in observing solar eclipse events in one of the elementary schools of the cities of Cirebon and Bandung. Through this activity teachers and students are expected to be more able to explore the creativeness of their instructors, enjoy, be prepared to participate in astronomy education for children from an early age in learning science to be fun in understanding the physics content about astronomy. Towards the end of the year, precisely on December 26, 2019, the people of Indonesia will have the opportunity to witness a rare and spectacular astronomical event, the Ring Solar Eclipse. This service is held in November - December 2019 in one of the elementary schools in Bandung regency and Cirebon city. This activity is carried out through several stages including the Implementation of STREAM to classroom teachers such as STREAM exposure, explanation of designing STREAM-based learning and Implementation of STREAM-based learning designs in classes that have been agreed to run the program. Teacher and student questionnaires were given to collect data on responses to STREAM learning that was implemented.
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Sari, Dewi Purnama, Novi Kurniasih, and Alex Fernandes. "Pemanfaatan Listrik Tenaga Surya Sebagai Pasokan Listrik Untuk Menghidupkan Mesin Pompa Air Masyarakat Dusun Cilatak, Desa Sukadana, Kecamatan Ciomas, Kabupaten Serang, Banten." TERANG 3, no. 1 (October 3, 2020): 68–79. http://dx.doi.org/10.33322/terang.v3i1.1019.
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The Community Service program activity of the Electricity and Renewable Energy Faculty lecturer team at the PLN Technology Institute for the 2019/2020 fiscal year was carried out in Sukadana village, Ciomas district, Serang region, Banten precisely at RT 011 RW 003 Cilatak hamlet. The selection of Sukadana village as a place to implement Community Service is because this village is still experiencing problems in the construction and development facilities and infrastructure. The problems that are currently being experienced by villagers regarding the clean water distribution for ablution of villagers in the mosque. During this time for ablution in mosque, villagers only rely on water from mountain springs whose distribution relies on gravitational pressure through a plastic hose and accommodated in a large tub located beside the mosque. In addition to being used for ablution, water is also used by villagers to bathing, washing, etc., so that when used for ablution sometimes it is no longer clean because it has been mixed with soapy water used for bathing and washing. Based on those problems, our team provided solution to partner in the form of infrastructure development and clean water supply by reconfiguring the clean water distribution installation for ablution in the mosque by installing solar water pump. The method used in the implementation of this Community Service activity is to approach the villagers during the survey through interviews by providing solution to the problem and conducting questionnaires and socialization in the form of a brief education. The results of the activities have been done by installing 2 units of DC water pump @180 Watt, 4 units of polycrystalline solar modules @100 Wp, 2 units of battery @100 Ah 12 V and 2 units of solar charge controller. With the implementation of Community Service activities in Sukadana village, aside from being able to help overcome the problems faced by partner, besides that it can provide progress and development of infrastructure for partner village and the existence of a partnership that makes that village as IT PLN assisted village.