Articles de revues : « SOLAR PHOTOVOLTAIC PERFORMANCE »

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Njok, Armstrong O., Ferdinand A. Kamgba, Manoj Kumar Panjwani et Fareed H. Mangi. « The influence of solar power and solar flux on the efficiency of polycrystalline photovoltaics installed close to a river ». Indonesian Journal of Electrical Engineering and Computer Science 17, n^o 2 (1 février 2020) : 988. http://dx.doi.org/10.11591/ijeecs.v17.i2.pp988-996.

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There is an increasing focus on utilizing the renewable energy resources, especially solar energy as the fossils are expected to deplete in near future. Solar Photovoltaics have remained of particular interest because of their relative lower overall efficiencies .Most researchers are trying to enhance the overall performance of Solar Photovoltaic and trying to study factor that may possible lead to an increase in the overall performance of a Solar Photovoltaic Panels. A thorough investigation was carried out to study the influence of solar power and solar flux on the performance parameters of Photovoltaic (Polycrystalline). The data used in the research was obtained by in-situ measurement approach using an SM206 precision digital solar power meter, a digital solar flux meter, and an M890C+ digital Multimeter. The result obtained shows an interesting correlation for current, efficiency and solar power as well as for solar flux which indicates that high solar power and solar flux positively enhances the performance of the photovoltaic. The results also reveal that once the solar power or solar flux reaching the photovoltaic exceeds 200W/m2 or 20Klux, the voltage from the photovoltaic approaches maximum and remains fairly stable irrespective of the amount of solar power or solar flux reaching the photovoltaic. The data collected for three months, July, August and September shows prediction efficiency of 87 %, 63% and 71% at 11:30am, 12:30 pm and 10:30 am respectively.

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Borkar, Mr Dinesh S., Dr Sunil V. Prayagi et Ms Jayashree Gotmare. « Performance Evaluation of Photovoltaic Solar Panel Using Thermoelectric Cooling ». International Journal of Engineering Research 3, n^o 9 (1 septembre 2014) : 536–39. http://dx.doi.org/10.17950/ijer/v3s9/904.

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Bandaru, Sree Harsha, Victor Becerra, Sourav Khanna, Jovana Radulovic, David Hutchinson et Rinat Khusainov. « A Review of Photovoltaic Thermal (PVT) Technology for Residential Applications : Performance Indicators, Progress, and Opportunities ». Energies 14, n^o 13 (26 juin 2021) : 3853. http://dx.doi.org/10.3390/en14133853.

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Solar energy has been one of the accessible and affordable renewable energy technologies for the last few decades. Photovoltaics and solar thermal collectors are mature technologies to harness solar energy. However, the efficiency of photovoltaics decays at increased operating temperatures, and solar thermal collectors suffer from low exergy. Furthermore, along with several financial, structural, technical and socio-cultural barriers, the limited shadow-free space on building rooftops has significantly affected the adoption of solar energy. Thus, Photovoltaic Thermal (PVT) collectors that combine the advantages of photovoltaic cells and solar thermal collector into a single system have been developed. This study gives an extensive review of different PVT systems for residential applications, their performance indicators, progress, limitations and research opportunities. The literature review indicated that PVT systems used air, water, bi-fluids, nanofluids, refrigerants and phase-change material as the cooling medium and are sometimes integrated with heat pumps and seasonal energy storage. The overall efficiency of a PVT system reached up to 81% depending upon the system design and environmental conditions, and there is generally a trade-off between thermal and electrical efficiency. The review also highlights future research prospects in areas such as materials for PVT collector design, long-term reliability experiments, multi-objective design optimisation, techno-exergo-economics and photovoltaic recycling.

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S., Dr Narendiran. « Analysis of High Performance MPPT Controllers for Solar Photovoltaic System ». International Journal of Psychosocial Rehabilitation 24, n^o 5 (31 mars 2020) : 12–29. http://dx.doi.org/10.37200/ijpr/v24i5/pr201664.

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Tortoreli, Marina D., George E. Chatzarakis, Nikolaos F. Voudoukis, Gerasimos K. Pagiatakis et Andreas E. Papadakis. « Teaching fundamentals of photovoltaic array performance with simulation tools ». International Journal of Electrical Engineering & ; Education 54, n^o 1 (29 septembre 2016) : 82–94. http://dx.doi.org/10.1177/0020720916669157.

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This paper presents a course module containing exercises based on simulation tools that can be used to efficiently educate Electrical and Electronic Engineering undergraduate students on the electrical behavior of solar cells and photovoltaic arrays. This module is taught as part of the “Alternative Energy Sources” course added to the curriculum of the Electrical and Electronic Engineering Educators Department of ASPETE in 2013. The concept is to offer our undergraduate students the opportunity to deeply understand the electrical behavior of solar cells and photovoltaics by virtually experimenting with individual solar cells and photovoltaic arrays creating their necessary models in the popular platform of MULTISIM (the simulator from National Instruments). This is important for the success of the learning process of this course, which is not accompanied with a real-world laboratory that would be expensive to implement.

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Salot, Parshva. « Performance Enhancement of Solar Photovoltaic Cell ». International Journal for Research in Applied Science and Engineering Technology 9, n^o VI (25 juin 2021) : 2395–602. http://dx.doi.org/10.22214/ijraset.2021.35557.

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This paper consists analysis on performance enhancement of solar photovoltaic cell by using reflecting and cooling system. The performance of PV (photovoltaic) module is strongly dependent on its surface temperature and solar radiation strikes on PV panel. It is necessary to study possible way for maintaining the appropriate temperature for solar panels and make system that will help to strikes maximum solar radiation on panel. High solar radiation and ambient temperature lead to an elevated photovoltaic cell operating temperature, which affects its lifespan and power output adversely. To enhance the electrical performance of the PV module we make one system which consists of two mirrors as a reflector placing beside solar panel and cooling system consists of pipe placed on upper area of solar panel. At time of sunrise and sunset low solar radiation is fall on solar panel, so reflecting system increase the intensity of solar radiation fall on solar panel. At noon time or afternoon the temperature of solar panel is increases it will decrease the efficiency of solar panel to minimize that cooling system is introduced that controlled the surface temperature.

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Wu, Ming-Chung, Ching-Mei Ho, Kai-Chi Hsiao, Shih-Hsuan Chen, Yin-Hsuan Chang et Meng-Huan Jao. « Antisolvent Engineering to Enhance Photovoltaic Performance of Methylammonium Bismuth Iodide Solar Cells ». Nanomaterials 13, n^o 1 (23 décembre 2022) : 59. http://dx.doi.org/10.3390/nano13010059.

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High absorption ability and direct bandgap makes lead-based perovskite to acquire high photovoltaic performance. However, lead content in perovskite becomes a double-blade for counterbalancing photovoltaic performance and sustainability. Herein, we develop a methylammonium bismuth iodide (MBI), a perovskite-derivative, to serve as a lead-free light absorber layer. Owing to the short carrier diffusion length of MBI, its film quality is a predominant factor to photovoltaic performance. Several candidates of non-polar solvent are discussed in aspect of their dipole moment and boiling point to reveal the effects of anti-solvent assisted crystallization. Through anti-solvent engineering of toluene, the morphology, crystallinity, and element distribution of MBI films are improved compared with those without toluene treatment. The improved morphology and crystallinity of MBI films promote photovoltaic performance over 3.2 times compared with the one without toluene treatment. The photovoltaic device can achieve 0.26% with minor hysteresis effect, whose hysteresis index reduces from 0.374 to 0.169. This study guides a feasible path for developing MBI photovoltaics.

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Manoj, Vasupalli, Ramana Pilla et Vasudeva Naidu Pudi. « Sustainability Performance Evaluation of Solar Panels Using Multi Criteria Decision Making Techniques ». Journal of Physics : Conference Series 2570, n^o 1 (1 août 2023) : 012014. http://dx.doi.org/10.1088/1742-6596/2570/1/012014.

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Abstract Researchers from all around the world had worked tirelessly to find ways to lower the cost of solar panels, create more efficient new goods, boost their fuel efficiency, and create innovations and largely dependent on photovoltaic system technology. When compared to other forms of non-conventional energy, such as wind and tidal, solar has been one of the most widely employed resources. To harness the power of the sun using photovoltaics, one needs a photovoltaic system. Research into improving the cost-effectiveness of solar panels, which play a crucial part in photovoltaic systems, is a global endeavour. The process of choosing solar panels is nuanced, encompassing a wide range of subjective and objective considerations. To choose the best solar cell for a PV array, we use the VIKOR (VIekriterijumsko KOmpromisno Rangiranje) and TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution) techniques. Using the Analytical Hierarchy Process (AHP) and a resemblance to ideal result ordering technique, the study’s goals were satisfied. VIKOR and other MCDM tools like the AHP and TOPSIS are used to rank candidates in terms of performance. An in-depth case study was conducted using six different kinds of solar panels to show how well the approaches work.

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Shin, Dong, et Suk-Ho Choi. « Recent Studies of Semitransparent Solar Cells ». Coatings 8, n^o 10 (20 septembre 2018) : 329. http://dx.doi.org/10.3390/coatings8100329.

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It is necessary to develop semitransparent photovoltaic cell for increasing the energy density from sunlight, useful for harvesting solar energy through the windows and roofs of buildings and vehicles. Current semitransparent photovoltaics are mostly based on Si, but it is difficult to adjust the color transmitted through Si cells intrinsically for enhancing the visual comfort for human. Recent intensive studies on translucent polymer- and perovskite-based photovoltaic cells offer considerable opportunities to escape from Si-oriented photovoltaics because their electrical and optical properties can be easily controlled by adjusting the material composition. Here, we review recent progress in materials fabrication, design of cell structure, and device engineering/characterization for high-performance/semitransparent organic and perovskite solar cells, and discuss major problems to overcome for commercialization of these solar cells.

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Sultana, Najmin Ara, Md Obidul Islam, Mainul Hossain et Zahid Hasan Mahmood. « Comparative Performance Study of Perovskite Solar Cell for Different Electron Transport Materials ». Dhaka University Journal of Science 66, n^o 2 (26 juillet 2018) : 109–14. http://dx.doi.org/10.3329/dujs.v66i2.54553.

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In recent times, planar organo-metal halide perovskite solar cells (PSCs) achieved high power conversion efficiency (PCE > 22%). Mixed organic-inorganic halide perovskites, with excellent light harvesting properties, have evolved as a promising class of semiconductors for photovoltaics. In this work, compositional and electrical characterizations of materials used for different layers of PSC have been studied. One dimensional solar cell simulator wx-AMPS is used for numerical simulation of such devices and all simulations are done under AM1.5 illuminations and 300K temperature. Investigating the influences of thickness of electron transport material (ETM), hole transporting material (HTM) and absorber on the photovoltaic performance of PSCs, it is observed that, increase in thickness of perovskite (MAPbI3) results in the increase in PCE of solar cells, whereas increase in thickness of ETM layer results in decrease in the efficiency of the devices. The ETM plays a vital role on the performance of PSC. In this paper, for the first time performances of PSC for three different ETMs (TiO2, ZnO or SnO2) are calculated and analyzed simultaneously with the simulator wx-AMPS. The photovoltaic performances have been explored and efficiencies of 27.6%, 27.5% and 28.02% are reported for perovskite solar cells with TiO2, ZnO and SnO2 as ETM respectively for a specific thickness. Finally, this simulation study concludes that ZnO and SnO2 may be effective alternatives of the commonly used material, TiO2 as they are economically more potential and give somewhat better photovoltaic performance. Dhaka Univ. J. Sci. 66(2): 109-114, 2018 (July)

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Chaabane, Monia, Wael Charfi, Hatem Mhiri et Philippe Bournot. « Performance evaluation of solar photovoltaic systems ». International Journal of Green Energy 16, n^o 14 (26 septembre 2019) : 1295–303. http://dx.doi.org/10.1080/15435075.2019.1671405.

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., Tanvir Ahmad. « PERFORMANCE STUDY OF PHOTOVOLTAIC SOLAR CELL ». International Journal of Research in Engineering and Technology 04, n^o 10 (25 octobre 2015) : 12–18. http://dx.doi.org/10.15623/ijret.2015.0410003.

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Fanney, A. H., B. P. Dougherty et K. P. Kramp. « Field Performance of Photovoltaic Solar Water Heating Systems ». Journal of Solar Energy Engineering 119, n^o 4 (1 novembre 1997) : 265–72. http://dx.doi.org/10.1115/1.2888031.

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Energy consumed for water heating accounts for approximately 17.9 EJ of the energy consumed by residential and commercial buildings. Although there are over 90 million water heaters currently in use within the United States (Zogg and Barbour, 1996), durability and installation issues as well as initial cost have limited the sales of solar water heaters to less than 1 million units. Durability issues have included freeze and fluid leakage problems, failure of pumps and their associated controllers, the loss of heat transfer fluids under stagnation conditions, and heat exchanger fouling. The installation of solar water heating systems has often proved difficult, requiring roof penetrations for the piping that transports fluid to and from the solar collectors. Fanney and Dougherty have recently proposed and patented a solar water heating system that eliminates the durability and installation problems associated with current solar water heating systems. The system employs photovoltaic modules to generate electrical energy which is dissipated in multiple electric heating elements. A microprocessor controller is used to match the electrical resistance of the load to the operating characteristics of the photovoltaic modules. Although currently more expensive than existing solar hot water systems, photovoltaic solar water heaters offer the promise of being less expensive than solar thermal systems within the next decade. To date, photovoltaic solar water heating systems have been installed at the National Institute of Standards and Technology in Gaithersburg, MD and the Florida Solar Energy Center in Cocoa, FL. This paper will review the technology employed, describe the two photovoltaic solar water heating systems, and present measured performance data.

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Zarede, Toufik, et Hamza Lidjici. « Float Photovoltaic Module Prototype : Design, Simulation, and Electrical Performance Analysis ». International Journal of Engineering Research in Africa 65 (8 août 2023) : 91–104. http://dx.doi.org/10.4028/p-kzv2eo.

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Photovoltaic solar energy is an abundant, renewable, and clean source of energy that can contribute to the energy transition. However, traditional land-based solar installation have limitations in terms of space, efficiency, and environmental impact. Floating solar panels have emerged as a promising technology that can overcome these limitations and provide a range of benefits. This work describes the design and experimental testing of a small-scale of floating photovoltaic module prototype, with a focus on the effect of solar irradiation on its maximum power output. The prototype is composed of a 4Wp photovoltaic module and a buoyant supporting structure. Using Matlab®, simulations were performed on the floating photovoltaic module under varying environmental conditions, including solar irradiance, temperature, and wind speed. The prototype demonstrated an electrical performance of 3.62W under solar irradiation of 895W/m2 and a temperature of 41°C, with a power ratio exceeding 97% of this maximum power under standard conditions. The prototype also showed a positive energy gain when compared to the same photovoltaic module in a horizontal or inclined position, particularly at high temperature and solar irradiance. Moreover, shows a stability and resistance in harsh weather conditions. The mathematical fitting with a Gaussian distribution shows the rapid increase of the maximum power of the floating photovoltaic module in the range of 37°C to 42°C of temperature with increasing solar irradiance.

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Kim, Soyeon, Muhammad Jahandar, Jae Hoon Jeong et Dong Chan Lim. « Recent Progress in Solar Cell Technology for Low-Light Indoor Applications ». Current Alternative Energy 3, n^o 1 (28 novembre 2019) : 3–17. http://dx.doi.org/10.2174/1570180816666190112141857.

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Photovoltaic cells have recently attracted considerable attention for indoor energy harvesting for low-power-consumption electronic products due to the rapid growth of the Internet of Things (IoT). The IoT platform is being developed with a vision of connecting a variety of wireless electronic devices, such as sensors, household products, and personal data storage devices, which will be able to sense and communicate with their internal states or the external environment. A self-sustainable power source is required to power such devices under low light indoor environments. Inorganic photovoltaic cells show excellent device performance under 1 Sun illumination and dominate the market for outdoor applications. However, their performance is limited for indoor applications with low incident light intensities as they exhibit low photo-voltage. Among the emerging photovoltaic technologies, organic photovoltaics have unique advantages, including solution processibility, flexibility, and lightweight tailorable design; hence, they are considered the best solution for indoor light harvesting applications due to their high photo-voltage, strong absorption of UV-visible wavelengths, and a spectral response similar to that emitted by modern indoor lighting systems. In this review article, we discuss the factors affecting device performance of different photovoltaic technologies under low incident light intensities or indoor conditions and provide a comprehensive analysis of future opportunities for enhancing indoor performance of the photovoltaic devices. Furthermore, we discuss some of the results of semi-transparent organic solar cell which operated under complex environmental conditions like low illumination, incident light angle etc. Based on the results, one can suggest that semi-transparent organic solar cell is a more suitable case for progressive indoor solar cell. After highlighting the factors that limit indoor device performance of photovoltaic cells, we discuss potential applications of IoT devices powered by organic photovoltaic cells in indoor lighting environments.

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Omarova, Zh. « PERFORMANCE SIMULATION OF ECO-FRIENDLY SOLAR CELLS BASED ONCH3NH3SnI3 ». Eurasian Physical Technical Journal 19, n^o 2 (40) (15 juin 2022) : 58–64. http://dx.doi.org/10.31489/2022no2/58-64.

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Large-scale deployment of the perovskite photovoltaic technology using such high-performance materials as СH3NH3PbI3may face serious environmental issuesin the future. Implementation of perovskite solar cellbased on Sncouldbe an alternative solution for commercialisation. This paperpresents the results of a theoretical study of a lead-free, environmentally-friendlyphotovoltaic cellusing СH3NH3SnI3as a light-absorbing layer. The characteristics of a photovoltaic cell based on perovskite were modelled using the SCAPS-1D program. Various thicknesses of the absorbing layer were analysed,and an optimised device structure is proposed,demonstratinga high power conversionefficiencyof up to 28% at ambient temperature. The analysis of the thicknesses of the СH3NH3SnI3absorbing layer revealedthat at a thickness of 500 nm, performance is demonstrated with an efficiencyof 27.41 %, a fill factor of 85.92 %, a short circuit current density of 32.60 mA/cm2and an open-circuit voltage of 0.98 V. The obtained numerical results indicate that the СH3NH3SnI3absorbing layer may be a viable replacement forthe standard materials and may form the basis of a highly efficient technology of the environmentally-friendlyperovskite solar cells.

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Sunanda, Wahri, Rika Favoria Gusa, Yuant Tiandho et Erick Aryana Pratama. « Impact of Shading Net on Photovoltaic Cells Performance ». Jurnal Teknik Elektro 11, n^o 2 (27 avril 2020) : 56–60. http://dx.doi.org/10.15294/jte.v11i2.23699.

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The output of the photovoltaic cells such as voltage and current is an essential parameter to assess the performance of photovoltaic cells. The performance of photovoltaic cells depends on the intensity of solar irradiation and the cleanliness conditions of cells. One of the factors that influence the performance of photovoltaic cells is shading. It can reduce the intensity of solar irradiation on the cells. In this study, the measurement system used two units of current and voltage sensors that simultaneously measures the performance of photovoltaic cells. In photovoltaic cells covered by a shading net with nominal shading rates of 50% and 90%, the average efficiency is 6% and 2% respectively. Meanwhile, for photovoltaic cells without covering by a shading net, the average efficiency is 11%.

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Mubiayi, Kalenga Pierre, Jilian Freitas, Makwena Justice Moloto, Nosipho Moloto, Lucky Mashudu Sikhwivhilu et Ana Flavia Nogueria. « Colloidal synthesis of Culn0.75Ga0.25Se2 nanoparticles and their photovoltaic performance ». Open Physics 14, n^o 1 (1 janvier 2016) : 420–25. http://dx.doi.org/10.1515/phys-2016-0046.

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AbstractThis paper addresses the possibilities of synthesizing copper indium gallium selenide nanoparticles with properties that are desired in photovoltaics. The use of oleylamine as solvent and capping agent improved the growth and dispersivity of stoichiometric CuIn0.75Ga0.25Se2 nanoparticles through conventional colloidal synthesis. Relatively small sized CuIn0.75Ga0.25Se2 nanocrystals were assembled in devices as quantum dot sensitized solar cells and exhibited electrical properties with a fill factor of 33% which may be improved for any photovoltaic application.

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Ziuku, Sosten, et Edson L. Meyer. « Electrical performance results of an energy efficient building with an integrated photovoltaic system ». Journal of Energy in Southern Africa 21, n^o 3 (1 août 2010) : 2–8. http://dx.doi.org/10.17159/2413-3051/2010/v21i3a3254.

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A 3.8 kW rooftop photovoltaic generator has been installed on an energy efficient house built at the University of Fort Hare, Alice campus, South Africa. The system, located on the north facing roof, started generating electrical power in February 2009. In addition to providing electrical energy, the photovoltaic panels also act as the building roofing material. An instrumentation and data acquisition system was installed to record the indoor and outdoor ambient temperature, indoor and outdoor relative humidity, wind speed and direction, solar irradiance, electrical energy produced by the solar panels and the household energy consumption. This paper presents the initial results of the electrical performance of the building integrated photovoltaics (BIPV) generator and energy consumption patterns in the energy efficient house.

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Njok, Armstrong O., Joel I. Iloke, Manoj Kumar Panjwani et Mangi Fareed Hussain. « The impact of coloured filters on the performance of polycrystalline photovoltaic panel in an uncontrolled environment ». International Journal of Electrical and Computer Engineering (IJECE) 10, n^o 4 (1 août 2020) : 4436. http://dx.doi.org/10.11591/ijece.v10i4.pp4436-4446.

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Photovoltaic modules behave extraordinarily by transforming part of the visible spectrum into electrical energy, and their efficiencies are affected by the nature of radiation (light) reaching them. When light strikes a photovoltaic cell, this light may go through the cell without been absorbed if it is too energetic or if the light possesses low energy it will be absorbed by the cell and cause the electrons to twist and vibrate in their bonds without dislodging them, hence causing the cell to heat up which ultimately leads to a decrease in its overall efficiency. This study is aimed to investigate how photovoltaics respond to different wavelengths of light. For the study to achieve its aim, colour filters were used to ensure that only a particular wavelength of light reaches the photovoltaic module at a time. In the process of collecting data from the solar panel, the solar panel was placed horizontally flat on a platform one meter above sea level facing the sun. Data was first obtained from the solar panel without the filters and after that with the filters placed one at a time and data collected accordingly. The amount of solar power and solar flux anytime a different colour filter was placed on the solar panel were measured. Among the coloured filter used yellow produced the highest efficiency, while blue produced the least efficiency. However, the solar panel was still more efficient when exposed to the natural spectrum.

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Tseng, Yi-Tzu, Yu-Ting Tseng et Chia-Ching Wu. « Photovoltaic Performance of CH3NH3PbI2Cl Perovskite Solar Cell ». Applied Functional Materials 2, n^o 2 (30 juin 2022) : 14–20. http://dx.doi.org/10.35745/afm2022v02.02.0003.

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Perovskite solar cells have attracted extensive research attention recently as they are promising high-performance solar cells with long-time stability at a low cost. In this study, we demonstrated a one-step solution approach to prepare the CH3NH3PbICl2 perovskite layer by adding lead chloride (PbCl2) to the standard methylamine iodide (MAI) precursor solution and annealing process of the perovskite layer at different temperature. Finally, the Ag/Spiro-OMeTAD/CH3NH3PbI2Cl /mp-TiO2/c-TiO2/FTO/Glass perovskite solar cell was successfully fabricated by using solution processing.

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Juhari, M. B. M., A. Samizee, E. A. Azrulhisham et S. Nizam. « Statistical Moments Approach in Grid-Connected Photovoltaic System Performance Evaluation ». Applied Mechanics and Materials 785 (août 2015) : 616–20. http://dx.doi.org/10.4028/www.scientific.net/amm.785.616.

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Solar energy is considered as one of the solution to the worldwide depletion of fossil fuel resources as well as the economic alternatives in protecting the atmosphere from the adverse consequences of global warming. Nevertheless solar power is often criticized because the output power generated is variable and virtually uncontrollable. Potential analysis on introduction of photovoltaic system at particular site however requires the knowledge of solar irradiance and photovoltaic power distributions. This paper will focus on the possibility in applying statistical moments approach in solar irradiance and photovoltaic power distribution evaluation. Applying the first to forth statistical moments, the density function approximation of the parameters from 5MW grid connected Photovoltaic system were evaluated using the Pearson system. This method is based on the relationship between the first four moments of the distribution where the probability distribution is estimated by equating their theoretical moments with the moments of empirical distributions. Application of various statistical moments has the advantage in estimating the potential of photovoltaic system in view of dynamic changes of skewness and kurtosis coefficients of solar power irradiance distributions.

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Viet Linh Le, Nguyen, Tri Hieu Le, Thi Minh Hao Dong, Van Vang Le et Dinh Tung. « AUGMENTATION OF SOLAR WATER DISTILLER PERFORMANCE WITH PV/T ». WATER CONSERVATION & ; MANAGEMENT 5, n^o 1 (31 décembre 2020) : 46–52. http://dx.doi.org/10.26480/wcm.01.2021.46.52.

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Recently, due to global warming and urbanization, there are many major cities that may face the challenge of day zero next decades. Obviously, water is an indispensable component for maintaining life on the earth. Although portable water is required of the hour, the quantity of available freshwater is impacted significantly by sea-level rise and pollution from industrialization. As a consequence of the global water crisis, different methods for clean water production from brackish water have been studied and developed in practice, however, the solar distillation of water is the most economical and desirable approach due to this method utilize solar energy that is the environmentally friendly and economical resource. Over the last 15 years, the impressive price drop of the photovoltaic solar collector (PV/T) makes them popular and easy to access. As a result, the employment of PV/T in solar stills is emerging as a potential device for water distillation. Therefore, in this paper, an active solar distiller combined with a photovoltaic panel has been reviewed for improvement of the distillate yield and effectiveness of solar photovoltaic. This review work presents a variety of studies on various types of solar still (for example conventional solar still (CSS), double slope solar still (DSSS), stepped solar distiller, and cascade solar still) couples with different solar water collectors (such as flat plate collector (FPC) and evacuated tubes collector (ETC)) and solar photovoltaic modules. It is obtained that the hybrid PV/T active solar still improves the distillate yield, energy efficiency, and exergy efficiency as compared to passive mode. The cooling method enhances the performance of the photovoltaic solar collector as well as the productivity of solar still. Moreover, the environmental economic estimation reveals that the solar still coupled with the PV/T mitigated considerably the amount of CO2. It can be stated that it is suitable to commercialize the hybrid PV/T active solar still for supplying not only electricity but drinking water also. Finally, this review paper also suggests the scope for the research in the future.

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Avithi Desappan, Dhass, Elumalai Natarajan et Lakshmi Ponnusamy. « Performance Evaluation of Photovoltaic System in Humid Atmosphere ». Applied Mechanics and Materials 787 (août 2015) : 57–61. http://dx.doi.org/10.4028/www.scientific.net/amm.787.57.

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The photovoltaic system converts electrical energy from solar radiation energy. It is preferable because it has no moving parts and low pollution to the environment. The performance of photovoltaic system has been decided with environmental aspects apart from the photovoltaic system specifications and incident solar radiation. In this research, the influence of relative humidity on photovoltaic system is considered for evaluating the performance and to draw the characteristic curves during winter (December and January) period. The photovoltaic system which installed at Chennai city, India, is exposed to high relative humidity even during winter season. The 3kW photovoltaic system behaviour is considered and measures the photovoltaic output voltage and output current with the effect of relative humidity. The performance curves shows that high relative humidity reduces the output voltage and current from photovoltaic system. It is same as the influence of other adverse environmental factors to degrade the operation and life span of photovoltaic system.

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Chaabane, Monia, Wael Charfi, Hatem Mhiri et Philippe Bournot. « Performance evaluation of concentrating solar photovoltaic and photovoltaic/thermal systems ». Solar Energy 98 (décembre 2013) : 315–21. http://dx.doi.org/10.1016/j.solener.2013.09.029.

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Hossain, Ridwone, Al Jumlat Ahmed, Sheik Md Kazi Nazrul Islam, Nirupam Saha, Preetom Debnath, Abbas Z. Kouzani et M. A. Parvez Mahmud. « New Design of Solar Photovoltaic and Thermal Hybrid System for Performance Improvement of Solar Photovoltaic ». International Journal of Photoenergy 2020 (15 juillet 2020) : 1–6. http://dx.doi.org/10.1155/2020/8825489.

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Solar photovoltaic (PV) and solar thermal systems are most widely used renewable energy technologies. Theoretical study indicates that the energy conversion efficiency of solar photovoltaic gets reduced about 0.3% when its temperature increases by 1°C. In this regard, solar PV and thermal (PVT) hybrid systems could be a solution to draw extra heat from the solar PV panel to improve its performance by reducing its temperature. Here, we have designed a new type of heat exchanger for solar PV and thermal (PVT) hybrid systems and have studied the performance of the system. The PVT system has been investigated in comparison with an identical solar PV panel at outdoor condition at Dhaka, Bangladesh. The experiments show that the average improvement of open circuit voltage (Voc) is 0.97 V and the highest improvement of Voc is 1.3 V. In addition, the overall improvement of output power of solar PV panel is 2.5 W.

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Shen, Tianyun. « Study on perovskite photovoltaic materials and photovoltaic performance of perovskite solar cells ». Highlights in Science, Engineering and Technology 26 (30 décembre 2022) : 29–33. http://dx.doi.org/10.54097/hset.v26i.3636.

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As a renewable energy, solar energy has aroused people’s attention and studies of this issue have become a hot topic throughout the world. How to turn solar energy into electric energy with a relatively better efficiency and lower costs has already become people’s new focus. Photovoltaic (PV) cell is such a new device that uses light to generate electricity. Among all of the PV products, the first-generation PV refers to silicon (Si) wafers with a power conversion efficiency (PCE) of 26%. However, these PV cells exhibit relatively high cost, limited conversion efficiency, and high processing cost. While, a new material called perovskite photovoltaic material came into people’s eyes. Perovskite materials exhibit variable structures, diversified composition and tubable performance. This material can help to improve the PCE into to a greater level, which is considered as the key performance of PV cells. This work introduces recent developments of halide perovskite and their performances as PV cells.

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Murthy, Krishna, Ajay Daniel, Lanvin Concessao, Habbie Alex Roy et A. Ganesha. « Fabrication and performance analysis of concentrated hybrid photovoltaic system ». MATEC Web of Conferences 144 (2018) : 04023. http://dx.doi.org/10.1051/matecconf/201814404023.

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Sun is the most important source of renewable source of energy. During the past few decades there has been an ever-increasing interest in Photovoltaic (PV) cells as it directly converts solar radiation into electricity. This paper involves the performance study of photovoltaic system under concentrated solar radiation. The main problem with the concentration solar energy is the drastic increase in temperature of the photovoltaic module resulting in a decrease in performance efficiency of the system. This problem of overheating of the system can be overcome by providing cooling which would ensure operation of the module in the optimal temperature range. Hence, the setup would function as a hybrid model serving the dual purpose of power generation while also utilizing the waste heat for water heating applications. The experimental set up consist of a novel arrangement of concentrator and reflector and the cooling system. The Hybrid Photovoltaic System was repeatedly tested under real time conditions on several days. A comparison was drawn between the results obtained from direct exposure of a standard photovoltaic module to that obtained from the hybrid system in order to better understand the improvement in performance parameters. The study shown a significant improvement of output of standard photovoltaic module under the concentrated solar radiation.

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Sani, Muhammad, et Abdulmumin Sule. « Effect of Temperature on the Performance of Photovoltaic Module ». Volume 5 - 2020, Issue 9 - September 5, n^o 9 (27 septembre 2020) : 670–76. http://dx.doi.org/10.38124/ijisrt20sep533.

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Metrological parameters plays significant role on the performance of solar panels in electrical power generation. To ascertain the extent to which ambient temperature, temperature of the panels, solar radiation were measured, recorded and analyzed at half-hour interval for five days, at the same period two solar panels were subjected to test, one being connected to a system of cooling leaving the other untouched. Measurement of both the output current and voltage were made from which the power output was calculated. The result shows that the power output was increasing as the solar radiation increased, which is clear indication that the entire photovoltaic process depend on the radiation intensity and environmental conditions. It was also observed that the efficiency of the solar panel with cooling system is slightly greater than that without cooling system. The efficiency and energy output of both solar panels were determined to be 15%, 13% and 477kWh, 449kWh respectively. The difference of 28kWh is not supposed to be neglected, because considering the difference of many days and many panels cannot be neglected. Also few approaches that have been proposed to reduce the effect of temperature on the solar photovoltaic system by choosing the appropriate configurations, by mounted on free standing frames, photovoltaic thermal collectors and building integrated photovoltaic arrays, respectively

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Yoon, Jongseung. « III-V Nanomembranes for High Performance, Cost-Competitive Photovoltaics ». MRS Advances 2, n^o 30 (2017) : 1591–96. http://dx.doi.org/10.1557/adv.2017.139.

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ABSTRACTDue to their highly favorable materials properties such as direct bandgap, appropriate bandgap energy against solar spectrum, and ability to form multiple junctions, epitaxially grown III-V compound semiconductors such as gallium arsenide have provided unmatched performance over silicon in solar energy harvesting. However, their large-scale deployment in terrestrial photovoltaics remains as a daunting challenge mainly due to the high cost of growing device-quality epitaxial materials. In this regard, releasable multilayer epitaxial growth in conjunction with printing-based deterministic materials assemblies represents a promising approach that can overcome this challenge but also create novel engineering designs and device functionalities, each with significant practical values in photovoltaic technologies. This article will provide an overview of recent advances in materials design, fabrication concept, and nanophotonic light management of multilayer-grown nanomembrane-based GaAs solar cells aiming for high performance, cost-efficient platforms of III-V photovoltaics.

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Casula, Laura, Guglielmo D’Amico, Giovanni Masala et Filippo Petroni. « Performance estimation of photovoltaic energy production ». Letters in Spatial and Resource Sciences 13, n^o 3 (31 octobre 2020) : 267–85. http://dx.doi.org/10.1007/s12076-020-00258-x.

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AbstractThis article deals with the production of energy through photovoltaic (PV) panels. The efficiency and quantity of energy produced by a PV panel depend on both deterministic factors, mainly related to the technical characteristics of the panels, and stochastic factors, essentially the amount of incident solar radiation and some climatic variables that modify the efficiency of solar panels such as temperature and wind speed. The main objective of this work is to estimate the energy production of a PV system with fixed technical characteristics through the modeling of the stochastic factors listed above. Besides, we estimate the economic profitability of the plant, net of taxation or subsidiary payment policies, considered taking into account the hourly spot price curve of electricity and its correlation with solar radiation, via vector autoregressive models. Our investigation ends with a Monte Carlo simulation of the models introduced. We also propose the pricing of some quanto options that allow hedging both the price risk and the volumetric risk.

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Matuska, Tomas, et Borivoj Sourek. « Performance Analysis of Photovoltaic Water Heating System ». International Journal of Photoenergy 2017 (2017) : 1–10. http://dx.doi.org/10.1155/2017/7540250.

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Performance of solar photovoltaic water heating systems with direct coupling of PV array to DC resistive heating elements has been studied and compared with solar photothermal systems. An analysis of optimum fixed load resistance for different climate conditions has been performed for simple PV heating systems. The optimum value of the fixed load resistance depends on the climate, especially on annual solar irradiation level. Use of maximum power point tracking compared to fixed optimized load resistance increases the annual yield by 20 to 35%. While total annual efficiency of the PV water heating systems in Europe ranges from 10% for PV systems without MPP tracking up to 15% for system with advanced MPP trackers, the efficiency of solar photothermal system for identical hot water load and climate conditions is more than 3 times higher.

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STREBKOV, DMITRIY, et NATAL’YA FILIPPCHENKOVA. « RESULTS OF THE PERFORMANCE NUMERICAL SIMULATION OF A SOLAR CONCENTRATOR MODULE WITH A THERMAL-PHOTOVOLTAIC RECEIVER ». Elektrotekhnologii i elektrooborudovanie v APK 4, n^o 41 (décembre 2020) : 51–56. http://dx.doi.org/10.22314/2658-4859-2020-67-4-51-56.

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In the field of energy supply to agro-industrial facilities, there is an increasing interest in the development of structures and engineering systems using renewable energy sources, including solar concentrator thermal and photovoltaic modules that combine photovoltaic modules and solar collectors in one structure. The use of the technology of concentrator heat and photovoltaic modules makes it possible to increase the electrical performance of solar cells by cooling them during operation, and significantly reduces the need for centralized electricity and heat supply to enterprises of the agroindustrial complex. (Research purpose) The research purpose is in numerical modeling of thermal processes occurring in a solar concentrator heat-photovoltaic module. (Materials and methods) Authors used analytical methods for mathematical modeling of a solar concentrator heat and photovoltaic module. Authors implemented a mathematical model of a solar concentrator heat and photovoltaic module in the ANSYS Fluent computer program. The distribution contours of temperature and pressure of the coolant in the module channel were obtained for different values of the coolant flow rate at the inlet. The verification of the developed model of the module on the basis of data obtained in an analytical way has been performed. (Results and discussion) The results of comparing the calculated data with the results of computer modeling show a high convergence of the information obtained with the use of a computer model, the relative error is within acceptable limits. (Conclusions) The developed design of the solar concentrator heat and photovoltaic module provides effective cooling of photovoltaic cells (the temperature of photovoltaic cells is in the operating range) with a module service life of at least twenty-five years. The use of a louvered heliostat in the developed design of a solar concentrator heat and photovoltaic module can double the performance of the concentrator.

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Al Asfar, Jamil, Ahmad Sakhrieh, Waleed Al-Nayfeh et Ahmad Ghandoor. « Performance of solar modules integrated with reflector ». International Journal of Power Electronics and Drive Systems (IJPEDS) 12, n^o 3 (1 septembre 2021) : 1845. http://dx.doi.org/10.11591/ijpeds.v12.i3.pp1845-1852.

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This study investigates experimentally the performance of two-dimensional solar tracking systems with reflector using commercial silicon based photovoltaic module, with open and closed loop control systems. Different reflector materials were also investigated. The experiments were performed at the Hashemite University campus in Zarqa at a latitude of 32⁰, in February and March. Photovoltaic output power and performance were analyzed. It was found that the modified photovoltaic module with mirror reflector generated the highest value of power, while the temperature reached a maximum value of 53 ̊ C. The modified module suggested in this study produced 5% more PV power than the two-dimensional solar tracking systems without reflector and produced 12.5% more PV power than the fixed PV module with 26⁰ tilt angle.

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Wang, Qiong, Miaoqiang Lyu, Meng Zhang, Jung-Ho Yun et Lianzhou Wang. « Configuration-centered photovoltaic applications of metal halide perovskites ». Journal of Materials Chemistry A 5, n^o 3 (2017) : 902–9. http://dx.doi.org/10.1039/c6ta07976h.

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Metal halide perovskites, particularly lead halide perovskites, have seen extraordinary breakthroughs in photovoltaics with power conversion efficiency swiftly surging to over 22% in the past few years, demonstrating their huge potential for rivalry with crystalline silicon solar cells in terms of production cost and performance for the future photovoltaic market.

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Dookie, Nalini, Xsitaaz T. Chadee et Ricardo M. Clarke. « A Prefeasibility Solar Photovoltaic Tool for Tropical Small Island Developing States ». Energies 15, n^o 22 (8 novembre 2022) : 8337. http://dx.doi.org/10.3390/en15228337.

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Small island developing states (SIDS) are the lowest emitters of greenhouse gases yet are the most vulnerable to the impacts of global climate warming. Many islands, such as the Caribbean islands, identified solar photovoltaics as a technology for reducing greenhouse gas emissions from their electricity sector. However, prefeasibility economic studies for photovoltaics are challenging as operational photovoltaic system data are nonexistent, and the measured solar radiation datasets are limited. Thus, a prefeasibility PV tool that uses ground-measured global horizontal irradiation and a supplementary photovoltaic derating factor model is proposed for use in tropical SIDS. In addition, the bias of a modelled irradiation dataset was quantified with limited solar radiation data for a tropical Caribbean SIDS, Trinidad and Tobago. For this SIDS, the tool estimates the annual energy output of a 50 MW photovoltaic system to be 57,890 MWh and the levelized cost of electricity to be USD 0.12/kWh. The performance of the proposed tool was comparable with two existing prefeasibility models, RETScreen and SAM, which use past ground measurements and modelled data, respectively. The biases in the annual irradiation data for RETScreen and SAM were determined to be 6% and 25%, respectively, against the solar irradiance dataset used. The proposed tool may be useful for first approximation prefeasibility photovoltaic studies in similar regions with limited climatic data.

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Snegirjovs, A., P. Shipkovs, K. Lebedeva, G. Kashkarova, L. Migla, P. Gantenbein et L. Omlin. « Performance Evaluation of Photovoltaic Solar Air Conditioning ». Latvian Journal of Physics and Technical Sciences 53, n^o 6 (1 décembre 2016) : 29–36. http://dx.doi.org/10.1515/lpts-2016-0041.

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Abstract Information on the electrical-driven solar air conditioning (SAC) is rather scanty. A considerable body of technical data mostly concerns large-scale photo-voltaic solar air conditioning (PV-SAC) systems. Reliable information about the energy output has arisen only in recent years; however, it is still not easily accessible, and sometimes its sources are closed. Despite these facts, solar energy researchers, observers and designers devote special attention to this type of SAC systems. In this study, performance evaluation is performed for the PV-SAC technology, in which low-power (up to 15 kWp of cooling power on average) systems are used. Such a system contains a PV electric-driven compression chiller with cold and heat sensible thermal storage capacities, and a rejected energy unit used for preheating domestic hot water (DHW). In a non-cooling season, it is possible to partly employ the system in the reverse mode for DHW production. In this mode, the ambient air serves as a heat source. Besides, free cooling is integrated in the PV-SAC concept.

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Chebotarev, S. N., A. S. Pashchenko et D. A. Arustamyan. « Microcrystalline and Amorphous Photovoltaic Silicon Materials Performance Optimization ». Materials Science Forum 870 (septembre 2016) : 74–82. http://dx.doi.org/10.4028/www.scientific.net/msf.870.74.

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A design of a thin-film solar cell based on microcrystalline and amorphous silicon α-Si:H(n-i-p)/μс-Si:O(n-i-p)/μс-Si:H(n-i-p) was proposed. A physical model and software to calculate the functional characteristics of these solar cells were developed. The numerical simulation results show that the efficiency of the optimized thin-film solar cells may reach up to 16.3 %, open circuit voltage 1.96 V, fill factor 78 %. Improved performance of the non-crystalline solar cell is achieved by an increase in absorbance in the visible range 500 – 800 nm to 40 – 60 % and in the near-infrared range of the solar radiation 800 – 1100 nm to 70 – 75 %.

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Fanney, A. Hunter, et Brian P. Dougherty. « Building Integrated Photovoltaic Test Facility* ». Journal of Solar Energy Engineering 123, n^o 3 (1 mars 2001) : 194–99. http://dx.doi.org/10.1115/1.1385823.

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The widespread use of building integrated photovoltaics appears likely as a result of the continuing decline in photovoltaic manufacturing costs, the relative ease in which photovoltaics can be incorporated within the building envelope, and the fact that buildings account for over 40% of the U.S. energy consumption. However, designers, architects, installers, and consumers need more information and analysis tools in order to judge the merits of building-integrated solar photovoltaic products. In an effort to add to the knowledge base, the National Institute of Standards and Technology (NIST) has undertaken a multiple-year project to collect high quality experimental performance data. The data will be used to validate computer models for building integrated photovoltaics and, where necessary, to develop algorithms that may be incorporated within these models. This paper describes the facilities that have been constructed to assist in this effort. The facilities include a mobile tracking photovoltaic test facility, a building integrated photovoltaic test bed, an outdoor aging rack, and a meteorological station.

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Zulakmal, M. Y., A. Fudholi, N. S. Rukman, S. Mat, H. Y. Chan et K. Sopian. « Solar photovoltaic/thermal-thermoelectric generator performance review ». IOP Conference Series : Earth and Environmental Science 268 (2 juillet 2019) : 012120. http://dx.doi.org/10.1088/1755-1315/268/1/012120.

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Ambarita, H., C. Sitanggang et R. Sipayung. « Performance of a Photovoltaic Solar Cold Storage ». Journal of Physics : Conference Series 1542 (mai 2020) : 012042. http://dx.doi.org/10.1088/1742-6596/1542/1/012042.

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Meneses-Rodrı́guez, David, Paul P. Horley, Jesús González-Hernández, Yuri V. Vorobiev et Peter N. Gorley. « Photovoltaic solar cells performance at elevated temperatures ». Solar Energy 78, n^o 2 (février 2005) : 243–50. http://dx.doi.org/10.1016/j.solener.2004.05.016.

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Ma, Tao, Hongxing Yang et Lin Lu. « Solar photovoltaic system modeling and performance prediction ». Renewable and Sustainable Energy Reviews 36 (août 2014) : 304–15. http://dx.doi.org/10.1016/j.rser.2014.04.057.

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Huang, B. J., T. H. Lin, W. C. Hung et F. S. Sun. « Performance evaluation of solar photovoltaic/thermal systems ». Solar Energy 70, n^o 5 (2001) : 443–48. http://dx.doi.org/10.1016/s0038-092x(00)00153-5.

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Charfi, Wael, Monia Chaabane, Hatem Mhiri et Philippe Bournot. « Performance evaluation of a solar photovoltaic system ». Energy Reports 4 (novembre 2018) : 400–406. http://dx.doi.org/10.1016/j.egyr.2018.06.004.

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Huang, B. J. « Performance evaluation of solar photovoltaic/thermal systems ». Fuel and Energy Abstracts 43, n^o 4 (juillet 2002) : 269. http://dx.doi.org/10.1016/s0140-6701(02)86356-1.

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Benatiallah, A., R. Mostefaou et K. Bradja. « Performance of photovoltaic solar system in Algeria ». Desalination 209, n^o 1-3 (avril 2007) : 39–42. http://dx.doi.org/10.1016/j.desal.2007.04.006.

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Sarhaddi, Faramarz. « Experimental performance assessment of a photovoltaic/thermal stepped solar still ». Energy & ; Environment 29, n^o 3 (7 janvier 2018) : 392–409. http://dx.doi.org/10.1177/0958305x17751392.

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In this paper, the performance analysis of a stepped solar still connected to photovoltaic thermal collector is carried out numerically and experimentally. A transient thermal model is obtained by writing energy balance for the various components of solar still system (i.e. glass cover, saline water, absorber plate, photovoltaic thermal collector). Also, an expression for the energy efficiency of system is derived. An experimental setup is designed and fabricated. The simulation results are validated by the measured experimental data. Finally, parametric studies are carried out and the effect of various operating and design parameters on the energy efficiency, freshwater productivity, and output electrical power is investigated. It is observed that there is a desired value for the mass flow rate of saline water and the area of photovoltaic thermal collector, which maximizes the energy efficiency. The desired value of the mass flow rate and photovoltaic thermal collector area is 0.068 kg/min and 1.33 m2, respectively. Furthermore, the connection of photovoltaic thermal collector to the stepped solar still improves the freshwater productivity and energy efficiency and it provides additional electrical power for other applications.

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Baskar, P., et G. Edison. « A Review of Mathematical Models for Performance Analysis of Hybrid Solar Photovoltaic - Thermal (PV/T) Air Heating Systems ». Advanced Materials Research 768 (septembre 2013) : 29–39. http://dx.doi.org/10.4028/www.scientific.net/amr.768.29.

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In recent years, many researches are being carried out on the integration of solar thermal systems with solar photovoltaic modules in many countries for heat generation along with electricity generation. The electrical energy generated by the solar PV modules is utilized for the operation of fan. The hybrid solar photovoltaic - Thermal (PV/T) technology provides an opportunity to enhance the electrical and thermal performances. This paper deals with analysis of various parameters which affect the electrical and thermal performances of different types of hybrid solar photovoltaic - Thermal (PV/T) air heating systems. These systems deliver more useful energy per unit area of the heater than that of individual solar PV and solar thermal systems and can be used for preheating the air for many applications such as drying of agricultural products, space heating and industrial process heating. The performance comparisons among the various models reveal that the model III in which the air flows above and below the absorber plate is most suitable for converting the solar energy into high quality electrical energy and low quality heat energy.

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Wang, Zi Long, Hua Zhang, Hai Tao Zhang et Ye Li. « Characteristics of the InGaP/InGaAs/Ge Triple-Junction Solar Cells with Concentration Photovoltaic System ». Applied Mechanics and Materials 148-149 (décembre 2011) : 773–77. http://dx.doi.org/10.4028/www.scientific.net/amm.148-149.773.

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The research on automatic tracking solar concentrator photovoltaic system research has become one of issues of solar PV technology. Aiming at the problem of cell performance degradation which caused by the non-uniform illumination in the concentrating photovoltaic system. A dish-style concentrating photovoltaic system with second stage concentrator was designed and built in this article. The author measured the performance of three junction GaInP/GaInAs/Ge solar cell. According to experiment result, the Pmm of solar cell was increased from 1.54 W/cm2 to 1.88 W/cm2. The η of solar cell was increased from 32% to 34.1% separately that compared with the concentrating photovoltaic system which without the second stage concentrator at the same concentration ratio(150X)

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