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Zeitschriftenartikel zum Thema „Super thermal power project“

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Veröffentlicht am 18. Mai 2024

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1

Hui, X. J., J. Wang, Y. C. Hu und S. Wang. „Preliminary consideration of the beam screen for the super proton-proton collider“. Journal of Instrumentation 17, Nr. 11 (01.11.2022): P11032. http://dx.doi.org/10.1088/1748-0221/17/11/p11032.

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Abstract This study evaluates the functional requirements of the Super Proton-proton Collider (SPPC) beam screen in view of the CEPC-SPPC project about to be built in China and aims to prove the feasibility of using the scaled FCC-type beam screen. Moreover, the study puts forward several feasible updated schemes with extra-cooling to optimize the cryogenic efficiency under the 12.8 W/m synchrotron radiation (SR) heat load and decrease the leaked SR power to the cold bore. The power distribution calculated by Synrad+ is imported into the Ansys workbench to get the exact thermal profile. The results show that the new scheme can restrict the temperature rise within 1 K, with a 30 g/s mass flow rate of the coolants. Such a profile can save over 1.3 MW electric power per turn.

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Houdková, Šárka, Zdeněk Česánek und Pavel Polach. „Solid Particle Erosion of Selected HVOF Sprayed Coatings“. Applied Mechanics and Materials 827 (Februar 2016): 39–46. http://dx.doi.org/10.4028/www.scientific.net/amm.827.39.

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The paper involves the subject and the chosen results of up to now solving of work package “Development of advanced surface treatment of components used in parts of turbines working under the condition of operational temperatures of steam using the HP/HVOF technology of thermal spraying” of the Competence Centre project “Centre of Research and Experimental Development of Reliable Energy Production”. The subject belongs to the field of material engineering and results of solving contribute to fulfilling the main project aim, which is a long time safeguarding of safe, reliable and financially available both classical thermal and nuclear sources of electric power, which consists in extending service life of existing and building new turbo generator blocks. The erosion wear resistance is one of the areas, which were observed. The impact of hard particles on the surface under variable impact angles was simulated in laboratory conditions using an in-house equipment. The wear resistance of selected HVOF sprayed hardmetal and super-alloy coatings was measured and the wear mechanism was evaluated. A strong influence of impact angle on both material volume loss and wear mechanism was monitored. The superior erosion wear properties of super-alloy coatings were proved, regardless the higher hardness of hardmetal coatings.

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3

Kirillov, Pavel L., und Galina P. Bogoslovskaya. „Generation IV supercritical water-cooled nuclear reactors: Realistic prospects and research program“. Nuclear Energy and Technology 5, Nr. 1 (11.04.2019): 67–74. http://dx.doi.org/10.3897/nucet.5.34293.

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Existing conditions make possible obtaining information that being discussed openly by wide scientific community could help outlining or even establishing the expediency of a particular area of present and future research. Use link http://www.sciencedirect.com to learn about the topics or areas that most attract researchers from different countries. The Generation IV International Forum (GIF-IV) established in January 2000 has set a goal to improve the new generation of nuclear technologies in the following areas: stability, safety and reliability, economic competitiveness, proliferation resistance and physical protection. The purpose of the present publication is to prepare a discussion of one of the directions of development of fourth-generation NPPs, the groundwork for which has already been laid in thermal power engineering in various countries. The number of papers published annually on this topic is the largest among other similar topics dedicated to nuclear power plants of the fourth generation. Judging from the operating experience of existing nuclear power plants using water as a coolant, it can be ascertained that the tendency of building water-cooled nuclear power plants will remain during the next 30 to 50 years. During the present stage the task in the development of alternative types of reactors will be limited to demonstration of their performance and acceptability for future power engineering and the society. The project of supercritical water-cooled reactor is based on the operating experience of VVER, PWR, BWR reactors (more than 14,000 reactor-years); many years of experience accumulated in operating fossil thermal power plants (more than 400 power units; 20,000 years of operation of power units) using supercritical (25 MPa, 540°C) and super-supercritical (35–37 MPa, 620–700°C) water steam. In Russia more than 140 supercritical pressure units are currently in operation. Numerical calculation and design of supercritical water-cooled reactor (similarly to BR-10 reactor) will allow not only training personnel for future development of this technology, but will also help revealing the most difficult points requiring experimental confirmation with application of independent test facilities, as well as formulating the plan of first priority experimental studies. Knowledge accumulated over the last 10 years in the world allows the following: further specifying the already developed concept; developing a plan of specific priority studies; compiling task order for designing small-power pilot VVER SKP-30 reactor (30 MW-th). The scope of problems that are to be solved to substantiate VVER-SCP reactor and commence designing an experimental reactor with thermal capacity of 30 MW is the same as that in developing any type of nuclear reactor: physics of the reactor core; material related matters (primarily concerned with the reactor pressure vessel, fuel, and fuel rod cladding); thermal hydraulics of rod bundles in the near- and supercritical areas; water chemistry at supercritical pressure; corrosion of materials, development of safety systems. Research must be carried out both in static conditions and under irradiation. The absence in Russia during the extended time period of approved program with allocation of appropriate funding and preservation of the existing status during the coming two or three years will lead to the situation when Russia will be hopelessly lagging behind in the development of SCWR technology.

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4

Jiang, Haiyang, Liangliang Guo, Fengxin Kang, Fugang Wang, Yanling Cao, Zhe Sun und Meng Shi. „Geothermal Characteristics and Productivity Potential of a Super-Thick Shallow Granite-Type Enhanced Geothermal System: A Case Study in Wendeng Geothermal Field, China“. Sustainability 15, Nr. 4 (15.02.2023): 3551. http://dx.doi.org/10.3390/su15043551.

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Super-thick shallow granites without a cap layer are widely distributed in the Wendeng geothermal field. To evaluate the field’s productivity potential for an enhanced geothermal system (EGS), we carried out field tests, laboratory tests and numerical simulations in succession. The geothermal characteristics and deep rock mechanical properties were identified based on real geological and core data from the borehole ZK1 in Wendeng geothermal field. Then, a numerical model of reservoir hydraulic fracturing based on a discrete fracture network was established. Thermal extraction simulations were then conducted to assess the long-term productivity of an EGS project based on the fracturing results. Possible well layout patterns and operational parameters were considered. Results indicated that, for naturally fractured formations, large well spacings should be used and reservoirs with overdeveloped natural fractures should not be selected. For the same reservoir, created by stimulation, the production performances of five-spot and triplet-well modes were different. The pressure indicator was more sensitive to the choice of well layout mode than the temperature indicator. The power generation of the five-spot well mode was slightly improved above that of the triplet-well mode. When selecting the target reservoir, the formations with high temperatures, moderate natural fractures, and high in-situ stress shielding are preferable. On this basis, a large volume of fracturing fluids should be injected to stimulate the reservoir, making the reservoir length and width as large as possible. If the desired large-scale reservoir is created, the five-point well mode should be selected.

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Schweika, Werner, Mats Lindroos, Luca Zanini und Tord Ekelöf. „The future of ESS is bright“. EPJ Web of Conferences 286 (2023): 01002. http://dx.doi.org/10.1051/epjconf/202328601002.

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The European Spallation Source ESS has still a huge upgrade potential by using an accelerator ring structure for proton pulse compression that can change the long pulse to a medium pulse structure. Therefore, we consider the performance of a medium pulse structure on the existing ESS target, moderator and neutron instrumentation. A medium proton pulse will enhance the neutron peak brightness of thermal and cold neutrons by about one order of magnitude and even up to two orders of magnitude at shortest wavelengths used at ESS, largely increasing the performance of the ESS instruments for neutron scattering. The arguments for a medium pulse length are that it is best adapted to the resolution requirements of the ESS instruments, the coupled moderator, the typical long instruments; furthermore, that it seems feasible to realise a medium pulse length by advanced, slow extraction from an accelerator ring, and feasible for the rotating tungsten target to take the high-power load. We discuss the implications of a medium proton pulse length and its specific choice for the instrument resolution, and for moderator and target. The proposed upgrade is stimulated by the new project ESSnuSB for a neutrino super beam at ESS and motivated by the synergy effect of using a common pulse compressor ring. The upgrade will be a most economical and efficient path for the ESS to a next higher level from an already world leading long-pulse source, transforming with a medium pulse structure into an even much more powerful, future next generation neutron source.

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Ikeda, Motoyasu. „Status of Super-Kamiokande Gadolinium project“. Journal of Physics: Conference Series 2156, Nr. 1 (01.12.2021): 012150. http://dx.doi.org/10.1088/1742-6596/2156/1/012150.

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Abstract Super-Kamiokande (SK) is the world’s largest underground water Cherenkov detector. The latest phase of operations began in July 2020 when, in order to improve neutron detection efficiency, about 13 tons of gadolinium (Gd) sulfate octahydrate was dissolved into SK’s pure water. Gd has a large thermal neutron capture cross section and emits visible gamma rays. This first loading marked the start of what is now called SK-Gd, and stable physics data taking has been ongoing since then. This presentation will focus on details of the first Gd loading and the detector status including detector calibrations. Also, the future plan and the prospect of observations with SK-Gd will be discussed.

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KOUGAMI, Kyouichi, und Hiroshi ISAKA. „The Development of Ultra-Super-Critical Thermal Power Plant“. Tetsu-to-Hagane 76, Nr. 7 (1990): 1043–52. http://dx.doi.org/10.2355/tetsutohagane1955.76.7_1043.

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8

Alicic, Merim, Sandira Eljsan und Indira Buljubasic. „Thermal power blocks with ultra-super-critical steam parameters“. Tehnika 71, Nr. 6 (2016): 833–37. http://dx.doi.org/10.5937/tehnika1606833a.

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9

Mukoyama, Shinichi, Satoshi Maruyama, Masashi Yagi, Yukihoro Yagi, Noboru Ishii, Osamu Sato, Mutsuhito Amemiya, Hitoshi Kimura und Akio Kimura. „Development of 500m HTS power cable in super-ACE project“. Cryogenics 45, Nr. 1 (Januar 2005): 11–15. http://dx.doi.org/10.1016/j.cryogenics.2004.08.003.

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10

Tarla, Mallikharjuna Rao, Srinivasa Rao Surapaneni und Konnanilkunnathil Thomas Varughese. „Modifications of Sub-components in Thermal Power Plants for Exergetic Efficiency“. International Journal of Heat and Technology 39, Nr. 2 (30.04.2021): 573–80. http://dx.doi.org/10.18280/ijht.390227.

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Exergy analysis gaining importance as an engineering analysis tool for energy systems. This paper explores the possibility of decreasing exergy reduction in thermal power plant components like boiler, turbine and condenser and thus increasing exergetic efficiency of Power plants by redesigning the existing design of some important components like platen super heater, final super heater, re heater, condenser, so that resource sustainability improves. The method suggested for exergy destruction in condenser is by using Heat pipes and application of heat pipes for steam condensation has been validated with experimental results.

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Dong, Li Yu, Zhi Wei Zhou und Yang Ping Zhou. „Mathematical Model and Dynamic Characteristics of Spiral-Style Super-Critical Steam Generator Used HTGR“. Advanced Materials Research 347-353 (Oktober 2011): 1678–82. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.1678.

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Modular HTGR nuclear power plant because of inherent safety and high thermal efficiency shows good prospects for development. The current high-temperature reactor demonstration power plant (HTR-PM) using two thermal power of 250MW of modular HTGR with an electric power 211MWe turbine unit. As one development goals of multi-reactor with one turbine unit, millions of kilowatt nuclear power plant will use more reactor module and steam generator module more like demonstration power plant (HTR-PM) with 1000MWe supercritical turbine generator unit. spiral-style super-critical steam generator design, modeling is a key factor. Analyzing the structure and the characteristic of moderate spiral coil steam generator which is used in Modular HTGR demonstration power plant, from the mechanism of equipments, based on the law of quality conservation, energy conservation, momentum conservation, authors build up the full scope real time simulation mathematical model of super critical steam generator. The dynamic experiments of feed water disturbance, power disturbance, Helium flux disturbance are made on the basis of the model. The experiments show that the model of super critical steam generator has excellent dynamic characteristics.

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Rai, Ashish Kumar. „Super Critical Thermal Power Plant Boiler Efficiency Calculation Using Imported Coal“. International Journal for Research in Applied Science and Engineering Technology V, Nr. IX (30.09.2017): 709–17. http://dx.doi.org/10.22214/ijraset.2017.9104.

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13

ötkan, Can Çavin, und Tekin Çolakoğlu. „Power struggles in football: The European Super League Project and its effects“. Journal of Human Sciences 18, Nr. 3 (03.10.2021): 485–96. http://dx.doi.org/10.14687/jhs.v18i3.6198.

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Purpose: In the research, it is aimed to examine the opinions of the fans about the European Super League and its effects, which were presented to the public on April 18, 2021. Method: Case study design, one of the qualitative research methods, was used. The study group of the research was determined by purposive sampling method. The study group consists of 11 male participants from different professions, who follow the UEFA Champions League organization every competition week and sports news at least 4 days a week and are supporters of a football team. Data were collected through a semi-structured interview form and subjected to content analysis. Results: As a result of the findings, the participants stated that although there are factors that threaten the popularity of football, it is at the top among sports branches. In addition, it was stated that it would be more appropriate for football to progress with beneficial additions rather than radical changes. The majority of the participants approached the project negatively on the grounds that the founders of the European Super League gave priority to their financial interests and that it was not suitable for the sports culture adopted. The participants stated that UEFA's reactions in this process were not convincing, and that the fans' protest actions against the project were justified. The new Champions League format and Financial Fair Play were discussed in the context of the research topic and the participants stated that these two concepts were useful but structurally lacking. Conclusions: As a result, the process and the findings show that; It will be the most accurate and efficient strategy for both football clubs and UEFA to give priority to the opinions of the fans in the actions to be taken. Extended English summary is in the end of Full Text PDF (TURKISH) file. Özet Amaç: Araştırmada, 18 Nisan 2021 tarihinde kamuoyuna sunulan Avrupa Süper Ligi’ne ve etkilerine yönelik taraftar görüşlerinin incelenmesi amaçlanmaktadır. Yöntem: Nitel araştırma yöntemlerinden durum çalışması deseni kullanılmış ve amaçlı örnekleme yöntemi ile belirlenmiş, farklı meslek gruplarına mensup, UEFA Şampiyonlar Ligi organizasyonunu her müsabaka haftası, spor haberlerini ise haftada en az 4 gün takip eden ve bir futbol takımının taraftarı olan 11 erkek katılımcı araştırmanın çalışma grubunu oluşturmuştur. Yarı yapılandırılmış görüşme formu aracılığı ile veriler toplanmış ve içerik analizine tabi tutulmuştur. Bulgular: Elde edilen bulgular neticesinde, futbolun popülaritesini tehdit eden unsurlar olmasına rağmen spor branşları arasında zirvede yer aldığı ve köklü değişimlerden ziyade faydalı eklemelerle ilerlemenin futbol için daha uygun olacağı katılımcıların görüşleri doğrultusunda tespit edilmiştir. Avrupa Süper Ligi kurucularının maddi çıkarlarına öncelik verdiği ve benimsenen spor kültürüne uygun olmadığı gerekçesi ile katılımcıların büyük bir çoğunluğu söz konusu projeye olumsuz yaklaşım göstermişlerdir. UEFA’nın bu süreçteki tepkilerini samimi görmediklerini ifade eden futbolseverler, projeye yönelik taraftar protestolarını ise haklı bulduklarını belirtmişlerdir. UEFA’nın uygulamalarından Yeni Şampiyonlar Ligi formatı ve Finansal Fair Play, araştırma konusu bağlamında ele alınmış ve katılımcılar bu iki uygulamanın faydalı ancak yapısal olarak eksik noktalara sahip olduğunu ifade etmişlerdir. Sonuç: Sonuç olarak, yaşanan süreç ve elde edilen bulgular göstermektedir ki; gerek futbol kulüplerinin gerek UEFA’nın atacağı adımlarda önceliklerini taraftar görüşlerine vermeleri en doğru ve verimli strateji olacaktır.

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Vijayraghawan, V., Pramod R. Bhave und Madhukar M. Basole. „Quality Assurance for Thermal Power Project Construction in India“. Journal of Performance of Constructed Facilities 7, Nr. 2 (Mai 1993): 79–85. http://dx.doi.org/10.1061/(asce)0887-3828(1993)7:2(79).

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15

Geroe, Steven. „Non-recourse project financing for concentrated solar thermal power“. Utilities Policy 60 (Oktober 2019): 100937. http://dx.doi.org/10.1016/j.jup.2019.100937.

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Priyadi, Ardyono, Arief Riambodo, Talitha Puspita Sari und Soedibyo Soedibyo. „Pengaruh Penambahan SCES Terhadap Peningkatan Kestabilan Transien Menggunakan Metode Critical Trajectory Berbasis Losing Synchronism“. Jurnal FORTECH 1, Nr. 1 (24.02.2020): 7–12. http://dx.doi.org/10.32492/fortech.v1i1.216.

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Three phase fault is one of a transient phenomenon that must be isolate immediately to prevent losing synchron of generator in power plant, so that the system remain stable. Critical clearing time is maximum time allowed to isolate the system fault so that the system remain stable. Super capacitor energy storage installation to the system is one way to improve CCT value. Super capacitor is one of energy storage that be able to supply and store large amounts of electricity power quickly. Super Capacitor can improve CCT value by muffle oscillation of 3 phase fault. With higher CCT value, then time operation of protection system can be longer. The result is the system remain stable after fault removed and it can be improve transient stability in power system. Within an optimal sizing of super capacitor capacities for the system, then the value of CCT that obtained is higher than protection time operation. So that in this final project will be carried out an optimal sizing of super capacitor for improving transient stability with critical trajectory based on losing synchronism method

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Sahay, Arun. „Perception of pollution and expectation from NTPC's Talcher Super Thermal Power Plant“. Progress in Industrial Ecology, An International Journal 5, Nr. 5/6 (2008): 536. http://dx.doi.org/10.1504/pie.2008.023415.

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18

Yagi, M., S. Mukoyama, M. Ichikawa, T. Takahashi, H. Suzuki und A. Kimura. „Demonstration of a 500 m HTS Power Cable in the Super-ACE Project“. Journal of Physics: Conference Series 43 (01.06.2006): 849–52. http://dx.doi.org/10.1088/1742-6596/43/1/207.

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19

Mahabub, Md Shakil, und Mohammad Rafikul Islam. „The Subsoil Characterization of Matarbari Ultra Super Critical Coal-Fired Power Project, Bangladesh“. Volume 5 - 2020, Issue 9 - September 5, Nr. 9 (04.10.2020): 931–45. http://dx.doi.org/10.38124/ijisrt20sep699.

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In this research, the subsoil characteristics and geotechnical issues have been evaluated for ground improvement, land development and design facilitation of Matarbari Ultra Super Critical Coal-Fired Power Project, Bangladesh. The subsoil conditions and geotechnical issues are addressed by determining the geotechnical parameters of soil. The soil characteristics are obtained from soil investigation and executed under land development for the procurement of power plant facilities. The American Society for Testing and Materials (ASTM International) standard is used to estimate all the soil parameters in field and laboratory tests. The measured soil properties establish the area consists mainly of two types of soils, i.e., Cohesive Clayey and non-cohesive Sandy soils. The cohesive soils are mostly composed of gray to dark gray CLAY, CLAY with Sand, SILT with Sand, and Sandy CLAY with fine to mediumgrained Sand. The upper cohesive soil layer (Ac-1) is very soft to soft, normal to slightly consolidated with low undrained cohesion. This layer is expected to have a high potential for differential settlement because of the proposed design load. The lower cohesive soils (Ac-2 and Ac-3) are firm to very stiff and moderately over consolidated. These soils have moderate to high shear strengths with low compressibility relating to the expected range of the design loads. The non-cohesive Sandy soils consist of dark gray to gray SAND, SAND with Silt, Silty SAND, and Clayey SAND. The Sandy soils are poorly graded and loose to very loose at the upper part (As-1) and medium dense to dense in lower parts (As-2 & As-3) that expect less immediate settlement when a load placed on that. Geotechnical site conditions are challenging and deplorable. The soft soil layer Ac-1 (with As-1) complicates the design, especially in terms of foundation soil instability and settlement for certain structure types. Ground improvement techniques such as prefabricated vertical drain (PVD) and deep mixing method (DMM) can be applied to mitigate these challenges and for the improvement of the soft ground of the project area.

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Niu, Dong Xiao, Chao Chen Xu, Jin Peng Liu, Zhen Ma und Huan Miao Wu. „Environmental Impact Evaluation for Thermal Power Project Based on Combinational Weight and TOPSIS Method“. Advanced Materials Research 518-523 (Mai 2012): 1151–55. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.1151.

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In electricity production and supply system of China, thermal power continues to dominate a larger proportion. In recent years, be influenced by energy-saving emission reduction and low carbon development policy, the environmental impact issue of thermal power project aroused great attention. This study has established a comprehensive evaluation system by analyzing integrated comprehensive effects of the environment caused by thermal power project. Combining with AHP theory, entropy theory and TOPSIS evaluation ideas, the study created a set of scientific assessment model. The research has verified that the validity of the model through empirical studies. And it provided a good theoretical basis for environmental management comprehensive thermal power project.

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Fang, Xiaomin, und Xiaolu Li. „Design and simulation of hybrid thermal energy storage control for photovoltaic fuel cells“. Thermal Science 27, Nr. 2 Part A (2023): 1031–39. http://dx.doi.org/10.2298/tsci2302031f.

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In order to meet the demand of stable and continuous household electricity con?sumption, the author proposes the modelling and simulation of photovoltaic fuel cell hybrid power generation system. The system is composed of photovoltaic power generation device, fuel cell/super capacitor, electrolytic cell, hydrogen storage device and power regulation unit. As photovoltaic power generation is affected by sunshine changes, the combination of fuel cells and super capacitors with photo?voltaic devices can ensure the stability and reliability of power supply of hybrid power generation system. Taking sunshine intensity and household electricity consumption in a certain area as an example, the system is simulated in MATLAB/SIM?ULINK software. The results show that: At 08:30-17:00, the output power of the fuel cell is almost zero. This is because the electric energy output by the photovoltaic power generation system can basically meet the power demand of users during this period. At 00:00-6:00 and 18:30-24:00, the sunlight intensity is zero, and the power output of the photovoltaic power generation system is zero, at this time, the user?s electricity is completely supplied by the fuel cell. The investment cost of 1 kW fuel cell is about 45258.4 yuan, and that of 1 kW ordinary battery is about 15200 yuan, the investment cost of fuel cell is still high. In conclusion, the hybrid power generation system can meet the demand of ordinary household electricity.

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Zhang, Ji Xiu, Peng Xuan Duan und Ye Zhang. „Study on Preparation of High Strength Gypsum by Flue Gas Desulfurization Gypsum“. Applied Mechanics and Materials 405-408 (September 2013): 2681–85. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.2681.

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In this paper, the flue gas desulfurization gypsum (FGD) generated from thermal power plant is used to produce high strength gypsum. The basic properties of super high strength gypsum prepared by FGD gypsum are investigated based on the test results of strength, thermal expansion rate, crystal appearance and size. The results indicate that the properties of high strength gypsum prepared by FGD gypsum above α50 standard. This can be a reference for gypsum-based α super high-strength gypsum related product development.

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Gu, Guangyue, Youliang Lao, Yaxiong Ji, Shasha Yuan, Haijing Liu und Peng Du. „Development of hybrid super-capacitor and lead-acid battery power storage systems“. International Journal of Low-Carbon Technologies 18 (2023): 159–66. http://dx.doi.org/10.1093/ijlct/ctac140.

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Abstract Because the electricity storage of renewable energy is irregular, the battery in this system will be impacted by current. This will also have a negative impact on the battery life, increase the project cost and lead to pollute the environment. This study proposes a method to improve battery life: the hybrid energy storage system of super-capacitor and lead-acid battery is the key to solve these problems.

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Long, Yongsheng, Jie Yuan, Feng Yao, Shunhong ZHAO und Bin YANG. „Overview of key technologies of high power arc heater“. Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 39, Nr. 4 (August 2021): 776–85. http://dx.doi.org/10.1051/jnwpu/20213940776.

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Arc-heated facilties play an important role in ground tests, such as appraisal of thermal protection systems(TPS) of various hypersonic vehicles and simulation of a high Mach scramjet's thermal structure and combustion chamber performance. This paper analyzes the requirements for developing a high power arc heater. Key technologies for developing it include high power, high voltage, high enthalpy and electrode erosion in high currents. Finally, the paper proposes the related ideas and methods for these key technologies, providing theoretical references for China's development of a super-high power arc heater.

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Pan, Jing. „Research on fuel cell energy storage control and power generation system“. Thermal Science 24, Nr. 5 Part B (2020): 3167–76. http://dx.doi.org/10.2298/tsci191113107p.

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In order to realize the continuous stability of photovoltaic power generation system and the controllability of thermal energy storage, a photovoltaic fuel cell combined power generation system consisting of photovoltaic cell array, proton exchange membrane fuel cell, alkaline electrolysis cell and super capacitor is proposed. The system, at the same time, establishes the mathematical model of its various components and the system cost model, designs the thermal energy distribution of the thermal energy storage management coordination system, and uses the high efficiency battery to meet the load requirements of the power system. In addition, the paper uses simulation technology as a research method to build a simulation model of hybrid fuel cell thermal energy storage control and power generation system, and analyzes the system?s thermal energy supply and demand balance. The simulation results confirm that the photovoltaic fuel cell hybrid power generation system has high economic performance, can meet the user?s power and thermal energy requirements, and realizes the requirement of completely independent power supply.

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Khemani, L. T., S. Tiwari, G. Singh, G. A. Momin, M. S. Naik, P. S. P. Rao, P. D. Safai und A. G. Pillai. „Acid Deposition in the Vicinity of a Super Thermal Power Plant in India“. Terrestrial, Atmospheric and Oceanic Sciences 6, Nr. 3 (1995): 453. http://dx.doi.org/10.3319/tao.1995.6.3.453(rec).

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Subrahmanyam, K. N., und Shah Alam. „Comparative study of subcritical and super critical pulverized coal fired thermal power plant“. Invertis Journal of Renewable Energy 6, Nr. 4 (2016): 223. http://dx.doi.org/10.5958/2454-7611.2016.00033.3.

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Sarkar, A., R. Rano, K. K. Mishra und A. Mazumder. „Characterization of Cenospheres Collected from Ash-pond of a Super Thermal Power Plant“. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 30, Nr. 3 (27.12.2007): 271–83. http://dx.doi.org/10.1080/00908310600713883.

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Gutiérrez-Vargas, Gildardo, Alberto Ruiz, Jin-Yeon Kim, Víctor H. López-Morelos und Ricardo R. Ambriz. „Evaluation of thermal embrittlement in 2507 super duplex stainless steel using thermoelectric power“. Nuclear Engineering and Technology 51, Nr. 7 (Oktober 2019): 1816–21. http://dx.doi.org/10.1016/j.net.2019.05.017.

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Mohanty, J. K., P. R. Dash und P. K. Pradhan. „FMECA analysis and condition monitoring of critical equipments in super thermal power plant“. International Journal of System Assurance Engineering and Management 11, Nr. 3 (21.01.2020): 583–99. http://dx.doi.org/10.1007/s13198-020-00945-4.

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31

Bae, Si Yon, Bum Joon Kim und Byeong Soo Lim. „Fatigue Crack Growth Rate in Low ΔK Range According to the Microstructure and Temperature in P122 Alloy Weldment“. Key Engineering Materials 353-358 (September 2007): 545–48. http://dx.doi.org/10.4028/www.scientific.net/kem.353-358.545.

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There exists strong environmental and economic pressure to increase the thermal efficiency of fossil fuel power stations and this has led to a steady increase in operating temperature and pressure resulting in the world wide construction plans for ultra super-critical power plants. Consequently, in order to improve the thermal efficiency of power plant, there has been a strong drive to develop more advanced heat resistant steels with excellent creep, high temperature fatigue and thermal fatigue resistant properties as well as superior oxidation and corrosion resistant properties. In this study, the test material was P122 alloy which was developed for ultra super-critical power plant. To measure the fatigue crack growth rate in low #K range, fatigue tests were performed on the P122 alloy welds by #K decreasing method at three different microstructure (Base metal, HAZ, Weld metal) regions. Microstructure observation and micro-hardness tests performed for all three regions to find the relationship among the crack growth rate, microstructure and hardness. Fatigue tests were performed with compact tension specimens at 600°C, 650°C and 700°C at the loading frequency of 20Hz.

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Kim, Jongbeom, Se-Beom Oh, Jin-Keun Park, Chook-Bok Kim und Dong-Seok Yun. „Thermal Degradation Analysis of Platen Super Heater Tubes in Thermal Power Plants using a Nonlinear Ultrasonic Technique“. JOURNAL OF THE KOREAN SOCIETY FOR NONDESTRUCTIVE TESTING 42, Nr. 3 (30.06.2022): 216–21. http://dx.doi.org/10.7779/jksnt.2022.42.3.216.

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FUCHINO, Shuichiro. „R&D of Fundamental Technologies for Superconducting AC Power Equipment (Super-ACE Project)“. TEION KOGAKU (Journal of the Cryogenic Society of Japan) 41, Nr. 1 (2006): 2. http://dx.doi.org/10.2221/jcsj.41.2.

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Gil, Doo Song, Yeon Shik Ahn und Sang Ki Park. „Application of Continuous Indentation Technique in Thermal Power Plant“. Advanced Materials Research 26-28 (Oktober 2007): 1149–52. http://dx.doi.org/10.4028/www.scientific.net/amr.26-28.1149.

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Reliability evaluation of the welded structure is divided by method concentrating on defect and mechanical property. Thermal power plant facilities are operated in high temperature, high pressure and called for safety guarantee. Three factors are constituted for this. The First is PSI(pre-service inspection) and the second is ISI(in-service inspection) and the third is quantitative analysis in safety. Main steam and hot reheat steam pipes in thermal power plant are frequently making a trouble because of unsuitable quality control under construction. So, the suitable construction and the development of life forecast method is urgent matter. Therefore, the continuous indentation technique is interested in effective test method of pipes in power plant facilities. This strong point of the continuous indentation technique is possibility of super-precision measurement, programmed test analysis, nondestructive stiffness evaluation. This study is focused on the possibility of the continuous indentation technique application in main steam and hot reheat steam pipes for stiffness evaluation in thermal power plant facilities.

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Lin, Haifeng, und Ruili Mao. „Research on Design of Management System for Power Source Equalizing Charge based on FPGA control“. International Journal of Online Engineering (iJOE) 12, Nr. 02 (29.02.2016): 20. http://dx.doi.org/10.3991/ijoe.v12i02.5038.

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The accumulator can store the energy in high capacity, and the super capacitor can charge and discharge in high power. The mixed power source composed by the accumulator and super capacitor not only has the characteristics for both of them but also meets the high-power requirement of high capacity and peak value. How to perform the equalizing charging for multiple power packs is a emphasis in the industry currently. On the basis of analysis for multiple equalizing charging methods, a new type of design scheme based on DC/DC and switch matrix is raised in this project, the thinking of intermittent charging mode is adopted and four BCAP0350 is served as the charging sample to perform the charging and discharging experiment as well as verify the composite charging design scheme is provided with the feasibility.

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Brych, Vasyl, Mykhailo Fedirko und Olena Borysiak. „Approaches to implementing technologies of personnel management in thermal power enterprises“. Herald of Ternopil National Economic University, Nr. 4(90) (12.12.2018): 99–110. http://dx.doi.org/10.35774/visnyk2018.04.099.

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The article refers to innovative forms of management in thermal power enterprises. It is pointed out that the subject matter of the research paper is approaches of implementing technologies of personnel management in thermal power enterprises. The methodological framework consists of general research methods and also economic and statistical techniques, namely: systemic and structural anlsysis, statistical method of economic analysis, empirical analysis to determine trends of personnel management in thermal power enterprises; induction and deduction method to improve approaches to implementing technologies of personnel management in thermal power enterprises; abstract-logical analysis, economic and mathematical programming to provide the rationale for introducing process and project approaches to implementation of personnel management technologies. A number of trends relevant to staff resources in enterprises are highlighted. It is assumed that the low level of investment is due to the following factors: high depreciation costs of equipment and large consumption of natural resources, a rigid organizational structure, a lack of delegated decision-making and leadership, a top-down approach to making decisions, use of traditional technologies of staff motivation and development, harmful working conditions. The paper provides recommendations on approaches to organizational structure of personnel management. It is concluded that little interaction between business units and insufficient use of technologies for staff development stem from the linear functional model of organizational structure. Particular attention is given to the importance of introducing process approaches to personnel management through horizontal and vertical integration of activities. Project approaches are also considered to be useful for implementing technologies of personnel management in thermal power enterprises. The article suggests ways for project team formation (think tanks / business incubators) and further innovative development of thermal power enterprises. Special reference is made to implementing growth-oriented technologies for personnel management and project team formation in thermal power enterprises. Finally, a set of methods for recruiting project managers are developed.

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Adschiri, Tadafumi, S. Takami, K. Minami, T. Yamagata, K. Miyata, T. Morishita, M. Ueda et al. „Super Hybrid Materials“. Materials Science Forum 700 (September 2011): 145–49. http://dx.doi.org/10.4028/www.scientific.net/msf.700.145.

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Various composite materials have been developed, but in many cases problems arise due to the combined materials such as fabrication becoming difficult because of the significant increase in viscosity, and transparency of the polymer is sacrificed. These issues can be overcome by controlling the nanointerface; however, this is considered as a difficult task since nanoparticles (NPs) easily aggregate in polymer matrices because of their high surface energy. Organic functionalization of inorganic NPs is required to increase affinity between NPs and polymers. For fabricating multi-functional materials, we proposed a new method to synthesize organic modified NPs by using supercritical water. Because organic molecules and metal salt aqueous solutions are miscible in supercritical water and water molecules serve as acid/base catalysts for the reactions, hybrid organic/inorganic NPs can be synthesized under the supercritical condition. The hybrid NPs show high affinity for the organic solvent and the polymer matrix, which leads to the fabrication of these super hybrid NPs. How to release the heat from the devices is the bottle neck of developing the future power devices, and thus nanohybrid materials of polymer and ceramics are required to achieve both high thermal conductivity and easy thin film flexible fabrication, namely trade-off functions. Surface modification of the BN particles via supercritical hydrothermal synthesis improves the affinity between BN and the polymers. This increases the BN loading ratio in the polymers, thus resulting in high thermal conductivity. Transparent dispersion of high refractive index NPs, such as TiO2 and ZrO2, in the polymers is required to fabricate optical materials. By adjusting the affinity between NPs and the polymers, we could fabricate super hybrid nanomaterials, which have flexiblility and high refractive index and transparency.

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Çetin, Burhanettin. „COMPARATIVE ENERGY AND EXERGY ANALYSIS OF A POWER PLANT WITH SUPER-CRITICAL AND SUB-CRITICAL“. Journal of Thermal Engineering 4, Nr. 6 (29.09.2018): 2423–31. http://dx.doi.org/10.18186/thermal.465644.

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Choudhury, D. K. „Standard Critical Path and Selection of Most Economic and Quality Contractors for Construction of Thermal Power Plant: A Case Study in NTPC“. Metamorphosis: A Journal of Management Research 18, Nr. 2 (Dezember 2019): 103–18. http://dx.doi.org/10.1177/0972622519872653.

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In India, most of the thermal power plants were built by National Thermal Power Corporation (NTPC) Ltd and different state electricity boards. The thumb rule indicates that out of the total project construction cost, 70 per cent goes to the cost of project materials, while 30 per cent goes to the cost construction work which leads us to select the most competitive material suppliers and construction contractors. The objectives of this research work are (a) to select a contractor based on cost economy, (b) to find out the standard critical path for constructing a thermal power plant, and (c) to identify the critical activities in constructing a 500 MW thermal power plant. Through literature review, six important factors were identified to judge the quality of the contractor before awarding the contract. In project management, the selection of contractor on the basis of probability of their performance comes within the purview of decision under risk, and hence decision tree has been used as a methodology for the selection of contractor. For computing the critical path, the project network for the construction of the thermal power plant was constructed. The five thermal power projects of NTPC—NTPC Korba, NTPC Talcher, NTPC Rihand, NTPC Sipat, and NTPC Simhadri—were considered, and the construction data of these five projects were used to compute the critical path. Since the completion data of different activities of five projects at different geographical locations with different climates, different site conditions, and different conglomerate of workers were used, so the critical path estimated was accepted as the standard critical path.

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Wang, Wei Jun, und Chang Huan Tu. „Life Cycle Cost Accessment of Thermal Power Project under Sustainable Development“. Applied Mechanics and Materials 26-28 (Juni 2010): 20–24. http://dx.doi.org/10.4028/www.scientific.net/amm.26-28.20.

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Enterprise sustainable development emphasizes coordination of the development of economy, environment and society. The life cycle cost based on the sustainable development controls the engineering cost as well as environmental pollution and damage. The thermal power plant burns large amount of fossil fuels and discharge pollutants which cause serious pollution. Therefore the pollution control and ecological conservation make up important parts of construction and production cost, both of which are key parts of life cycle cost. This paper uses analytic hierarchy process and fuzzy comprehensive evaluation to estimate the life cycle cost and helps the enterprise to make social or temporal comparison and potentiality exploitation and to improve its sustainable development capability.

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Ge, Weichun, Debao Liu, Huan He, Shunjiang Wang, Zhen Jiao und Xuanyuan Zhao. „The wind-PV-hydro-thermal multi-source cleaning dispatch with the influence of super-power thermal storage boiler“. IOP Conference Series: Earth and Environmental Science 675, Nr. 1 (01.02.2021): 012049. http://dx.doi.org/10.1088/1755-1315/675/1/012049.

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42

Feng, Ying, Ching-Cheng Lu, I.-Fang Lin, An-Chi Yang und Po-Chun Lin. „Total Factor Energy Efficiency of China’s Thermal Power Industry“. Sustainability 14, Nr. 1 (04.01.2022): 504. http://dx.doi.org/10.3390/su14010504.

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Coal-based thermal power generation has long been the main source of power generation in the mainland of China. The efficiency of power generation is an important factor that determines the energy conservation and emission reduction as well as the sustainable development of the power industry in China. By comparing the regional differences of 30 provinces in the mainland from 2013 to 2017, this study uses the Super-DDF model and the TFEE to comprehensively evaluate the energy efficiency of thermal power generation. Empirical results: Overall efficiency: eastern efficiency (1.181) is the highest, followed by western (0.956), central (0.951) and northeastern (0.926). Total factor energy efficiency: eastern efficiency (0.923) is the highest, followed by western (0.754), central (0.742) and northeastern (0.710). The government and power industry managers should fully consider the regional differences in the field of thermal power generation when formulating policies so as to improve the power efficiency and promote the green development of power industry in China. Based on the analysis results, although the coal-fired power industry is more mature than other alternative energy industries, the expansion of thermal power generation cannot be considered if CO2 emissions are to be reduced. Additionally, the market share and competitiveness of the local power industry can be increased based on the different conditions of the resource endowments of each region.

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Alicic, Merim. „Models heat exchange in the thermal power station with ultra-super-critical steam parameters“. Tehnika 72, Nr. 4 (2017): 531–37. http://dx.doi.org/10.5937/tehnika1704531a.

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SAKAI, Takayuki, und Masatsugu YAGUCHI. „C112 Development of Plumbing Stress Analysis Program for Ultra-Super-Critical Thermal Power Plants“. Proceedings of the National Symposium on Power and Energy Systems 2011.16 (2011): 37–38. http://dx.doi.org/10.1299/jsmepes.2011.16.37.

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45

Reddy, V. Siva, S. C. Kaushik und S. K. Tyagi. „Exergetic analysis of solar concentrator aided coal fired super critical thermal power plant (SACSCTPT)“. Clean Technologies and Environmental Policy 15, Nr. 1 (27.05.2012): 133–45. http://dx.doi.org/10.1007/s10098-012-0492-3.

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Ueda, K., K. Yasuda, K. Inoue, A. Kikuchi und K. Iwadate. „R&D of HTS power cable and fault current limiter in Super-ACE project“. Physica C: Superconductivity 392-396 (Oktober 2003): 1171–79. http://dx.doi.org/10.1016/s0921-4534(03)01176-6.

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47

Halbach, Susan M., Kartik Pillutla, Alan Schwartz, Patricia Seo-Mayer, Darcy K. Weidemann und John D. Mahan. „The Sustainable Pediatric Nephrology Workforce Project (SUPER-POWER): A Pilot Study of Burnout and Resilience“. Journal of the American Society of Nephrology 31, Nr. 10S (Oktober 2020): 453. http://dx.doi.org/10.1681/asn.20203110s1453c.

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48

Yan, Laiqing, Tao Shui, Tailin Xue, Miao Wang, Ning Ma und Kaiyue Li. „Comprehensive Control Strategy Considering Hybrid Energy Storage for Primary Frequency Modulation“. Energies 15, Nr. 11 (01.06.2022): 4079. http://dx.doi.org/10.3390/en15114079.

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The increase in the number of new energy sources connected to the grid has made it difficult for power systems to regulate frequencies. Although battery energy storage can alleviate this problem, battery cycle lives are short, so hybrid energy storage is introduced to assist grid frequency modulation. In this paper, a hybrid energy storage system composed of battery energy storage and super-capacitor energy storage systems was studied, and a comprehensive control strategy was proposed. Firstly, by setting the frequency dead zone of the energy storage to be smaller than that of the thermal power unit, the frequent action of the thermal power unit was avoided. Secondly, virtual inertial control and virtual droop control were effectively combined. Then, the state of charge of battery energy storage and super-capacitor energy storage was considered so that they could operate in harmony. Finally, a simulation model was built in MATLAB/SIMULINK, and case studies were conducted to verify the proposed control strategy. Results showed that the proposed control strategy could effectively reduce the frequency deviation of the power grid, and maintain the state of charge, reduce the number of operated batteries, and improve cycle life.

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Jawade, Shubham. „Thermal Analysis of Microchannels Heat Sink using Super-hydrophobic Surface“. International Journal for Research in Applied Science and Engineering Technology 9, Nr. 9 (30.09.2021): 654–57. http://dx.doi.org/10.22214/ijraset.2021.38024.

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Abstract: Electronics devices are the major part of modern technology and with the rapid growth of miniaturizations of electronic devices, the heat dissipation from these devices have been the objective for researchers. This heat dissipation has to done effectively otherwise this will affect the life of device and will result decrement in efficiency. Increasing the heat transfer rates from electronic devices has long been a quest. Microchannel heat sink is one of the best option for removing heat from the electronics devices due to its compact size which provides high surface area to volume ratio that enables higher heat transfer rates. Microchannels are the flow passages having hydraulic diameter ranges from 10 micrometer (µm) to 200µm. Microchannel heat sink enhances the feasibility of electronics device. Microchannels with hydrophobic surface are a promising candidate for cooling of electronics devices, as hydrophobic surface can be used to create friction free regions with a channel which effectively reduce pumping power, flow pressure drop and frictional factor compared to Microchannel without Hydrophobic surface. This paper deals with the detailed behavior of Microchannel with hydrophobic surface. In this work, rectangular cross section with 0.8 mm (800 micron) hydraulic diameter super hydrophobic microchannel is used. Keywords: Microchannel, Hydrophobic surface, Heat transfer rate, Frictional factor.

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Senthil, N. Thiru, Tamilvanan M und Jayabharath S. „Design and Fabrication Pneumatic Expandable Vehicle“. International Journal of Innovative Research in Advanced Engineering 11, Nr. 04 (05.04.2024): 258–62. http://dx.doi.org/10.26562/ijirae.2024.v1104.16.

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Thermal is the main source for power generation in India. The percentage of thermal power generation as compare to other sources is 65%. The main objective of thermal power plant is to fulfill the energy demands of the market and to achieve these demands; plant requires technical availability with the parts reliability and maintenance strategy. This paper deals with the determination of current operating efficiency of Boiler and calculates major losses for Super thermal power plant (India) of 210 MW units. Then identify the causes of performance degradation. Also find the major causes of heat losses by Fault Tree Analysis (FTA) and recommends its appropriate strategy to reduce major losses. The aim of performance monitoring is continuous evaluation of degradation i.e. decrease in performance of the steam boiler. These data enable additional information which is helpful in problem identification, improvement of boiler performance and making economic decisions about maintenance schedule.

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