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Wyświetlanie 1-15 z 213
Tytuł:
Troubleshooting Maintenance of Concentrated Photovoltaic System – A Case Study
Autorzy:
As'ad, Samer
Halawani, Mohanad
Powiązania:
https://bibliotekanauki.pl/articles/124340.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
solar power
concentrated photovoltaic
photovoltaic
Opis:
Concentrated photovoltaic (CPV) is a photovoltaic technology that generates electricity from sunlight. Contrary to conventional photovoltaic systems, it uses lenses to focus the sunlight onto small, but highly efficient, multijunction solar cells. Two modules of CPV with a capacity of 6.4 kW (3.2 kW for each) were imported from AzurSpace Solar Power GMBH (Germany) and installed in Middle East University, Jordan, for testing purposes as a pilot project for this niche technology. It is worth mentioning that the installation of the units had been carried out by the faculty members. A range of technical obstacles were encountered in the process due to unclear instructions/steps from the manufacturer. A series of maintenance techniques and corrective measures were implemented in the system after one year of installation since the power output was unsatisfactory. Accordingly, the units were dismantled, and various procedures were conducted in order to ensure that the conditions of the system were on optimum level. In this paper, technical reviews and preventive setup were explained and presented.
Źródło:
Journal of Ecological Engineering; 2020, 21, 2; 1-9
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of solar photovoltaic power generation system in maritime vessels and development of maritime tourism
Autorzy:
Shi, Y.
Luo, W.
Powiązania:
https://bibliotekanauki.pl/articles/259144.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
solar photovoltaic system
ship
photovoltaic control system
Opis:
The use of new energy generation technologies such as solar energy and electric propulsion technologies to form integrated power propulsion technology for ships has become one of the most concerned green technologies on ships. Based on the introduction of the principles and usage patterns of solar photovoltaic systems, the application characteristics of solar photovoltaic systems and their components in ships are analyzed. The important characteristics of the marine power grid based on solar photovoltaic systems are explored and summarized, providing a basis for future system design and application. Photovoltaic solar cells are made using semiconductor effects that convert solar radiation directly into electrical energy. Several such battery devices are packaged into photovoltaic solar cell modules, and several components are combined into a certain power photovoltaic array according to actual needs, and are matched with devices such as energy storage, measurement, and control to form a photovoltaic power generation system. This article refers to the basic principle and composition of the land-use solar photovoltaic system, and analyzes the difference between the operational mode and the land use of the large-scale ocean-going ship solar photovoltaic system. Specific analysis of large-scale ocean-going ship solar photovoltaic system complete set of technical route, for the construction of marine solar photovoltaic system to provide design ideas.
Źródło:
Polish Maritime Research; 2018, S 2; 176-181
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The testing of energy efficiency of a prototype hybrid solar panel
Badanie efektywnosci energetycznej prototypowego hybrydowego kolektora slonecznego
Autorzy:
Sarniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/793246.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
solar panel
photovoltaic conversion
solar thermal conversion
photovoltaic cell
photovoltaic panel
energy efficiency
calculation
comparison
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on the effects of changes of ambient temperature and solar irradiance on the efficiency of the silicon PV modules
Badania wplywu temperatury otoczenia i natezenia promieniowania slonecznego na sprawnosc krzemowych modulow fotowoltaicznych
Autorzy:
Sarniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/793315.pdf
Data publikacji:
2016
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
photovoltaic system
voltage power grid
solar radiation
ambient temperature
weather condition
photovoltaic module
photovoltaic generator
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2016, 16, 1
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The application of LabVIEW software for the control of a model of a tracking photovoltaic system
Zastosowanie oprogramowania LabVIEW do sterowania modelem nadaznego systemu fotowoltaicznego
Autorzy:
Sarniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/793479.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
photovoltaic conversion
tracking system
photovoltaic cell
photovoltaic panel
LabView environment
LabJack U12 control card
control card
algorithm
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 1
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Storage systems for solar energy suitable for agriculture. Part two: electrical energy
Autorzy:
Kapica, J.
Powiązania:
https://bibliotekanauki.pl/articles/410793.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
energy storage
photovoltaic
agriculture
Opis:
The paper presents various ways to accumulate the energy converted from the solar radiation in the electrical form: electrochemical batteries, grid storage, elevated water tank, hydrogen production and supercapacitors which are suitable for use in agriculture or rural areas. Along with the basic presentation, the most recent developments in each area are presented.
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2017, 6, 4; 63-69
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photovoltaics and contemporary architecture in cityscape
FOTOWOLTAIKA I WSPÓŁCZESNA ARCHITEKTURA W KRAJOBRAZIE MIASTA
Autorzy:
Gawryluk, Dorota
Krawczyk, Dorota Anna
Powiązania:
https://bibliotekanauki.pl/chapters/2196854.pdf
Data publikacji:
2022
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
photovoltaic
cityscape
contemporary architecture
Opis:
Photovoltaic panels, apart from their utilitarian purpose, are increasingly used as an integral part of the architectural form. They meet all the criteria of the Vitruvian triad. They influence the functionality, form and structure of the building. They influence its beauty, and on a higher scale they also influence the landscape of the modern city.
Panele fotowoltaiczne poza swoim utylitarnym przeznaczeniem, są coraz częściej wykorzystywane jako integralny element formy architektonicznej. Spełniają wszystkie kryteria triady witruwiańskiej. Wpływają na funkcjonalność, formę i konstrukcję budowli. Określają jej piękno, a w wyższej skali mają wpływ także na kształtowanie krajobrazu współczesnego miasta.
Źródło:
Future of the city; 207-226
9788367185271
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microcontroller based step-up DC-DC converter driver with MPPT algorithm implemenation
Autorzy:
Tomaszuk, A.
Powiązania:
https://bibliotekanauki.pl/articles/376343.pdf
Data publikacji:
2014
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
MPPT algorithms
photovoltaic systems
Opis:
Energy efficiency is one of most critical parameters in photovoltaic (PV) systems. Overall PV system efficiency improvement may be achieved by such means as topological changes, new generations of transistor switches and/or planar magnetic components use. But on the other hand whole system must follow the wheather changes such as solar energy delivery variation due to cloud shading as well as temperature fluctuations. In such conditions a driver should dynamically track maximum power point (MPPT) of a PV array. For the purposes of better understanding PV array performance the paper shows MatLab simulation of 3.2 kWp PV array. The driver discussed works with a range of different step up DC-DC converter topologies such as bridge based topologies as well as interleaved ones. The ASCII protocol which can be implemented in PC application is responsible for working parameters settings carrying and output data logging as well as current software status check. The paper presents practical implementation of the driver as a part of larger PV system where the interleaved DC-DC converter works with 3.2 kWp PV array of ten PV modules connected in parallel. Described MPPT algorithm takes advantage of modified Perturb and Observe (P&O) method. Presented are microcontroller hardware resources utilization, functional software architecture and developped MPPT algorithm which performance is shown on the plot.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2014, 78; 233-240
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Power Sharing Strategy for Photovoltaic based Distributed Generators Operating in Parallel
Autorzy:
Patel, U. N.
Patel, Hiren H.
Powiązania:
https://bibliotekanauki.pl/articles/136196.pdf
Data publikacji:
2016
Wydawca:
EEEIC International Barbara Leonowicz Szabłowska
Tematy:
photovoltaic
reactive power
power sharing
Opis:
In many countries, the grid-code or standards do not allow the Photovoltaic (PV) inverters to exchange reactive power with the grid. Recently, some countries have relaxed the standards. Hence, capacity of the inverters to control reactive power must be utilized. However, the reactive power that a PV inverter can supply is constrained by the maximum power that a PV array generates and changes with the environmental conditions. A reactive power sharing algorithm is proposed that not only ensures proper distribution of reactive power amongst the inverters, but also ensures that the maximum power generated by PV is supplied to the grid. In case of identical PV inverters, the algorithm operates all inverters at nearly equal apparent power leading to nearly equal percentage utilization of the inverters, thereby achieving uniform heating of the similar devices of the inverters. The algorithms are further investigated for power sharing amongst PV inverters of unequal ratings. It is highlighted that the proposed algorithm results into the least change in the utilization factor of a PV inverter, whose power changes due to the change in environmental conditions. The effectiveness of the algorithm over other algorithms in sharing power amongst inverters is displayed through MATLAB/Simulink simulations.
Źródło:
Transactions on Environment and Electrical Engineering; 2016, 1, 4; 1-9
2450-5730
Pojawia się w:
Transactions on Environment and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of photovoltaic installations in order to improve the energy independency of a dairy equipped with a biogas reactor
Autorzy:
Sibiński, M.
Powiązania:
https://bibliotekanauki.pl/articles/105666.pdf
Data publikacji:
2014
Wydawca:
Centrum Badań i Innowacji Pro-Akademia
Tematy:
photovoltaic installation
photovoltaic technologies
photovoltaic storage and processing
milk processing plants
dairy factories
instalacje fotowoltaiczne
technologia fotowoltaiczna
zakłady przetwórstwa mleka
zakłady mleczarskie
Opis:
This article attempts to demonstrate the importance of photovoltaic installations in improving the energy independence of a dairy equipped with a biogas reactor. It focuses on the development of photovoltaic technologies towards the wider use of solar cells in industrial power engineering installations, the potential of photovoltaic installations in Poland, and the storage and processing of energy from photovoltaic sources. An attempt has also been made to analyze the potential of a milk processing plant to meet its energy needs using photovoltaic sources.
Źródło:
Acta Innovations; 2014, 10; 13-28
2300-5599
Pojawia się w:
Acta Innovations
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Low voltage PV array model verification on computer aided test setup
Autorzy:
Tomaszuk, A.
Powiązania:
https://bibliotekanauki.pl/articles/376132.pdf
Data publikacji:
2015
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
PV module model
Photovoltaic Systems
Opis:
Low voltage photovoltaic (PV) array delivers electric power to the renewable energy systems which utilize step-up DC-DC converters. The performance of PV array is strictly dependent on environmental conditions such as solar radiation and ambient temperature. In this paper presented is MATLAB model of low voltage 3.2 kWp PV array composed of ten PV panels connected in parallel. The model itself is based on photodiode model and is supported by datasheet parameters of examined PV panels. Presented P-V curves show an influence of solar radiation and temperature on electric power produced by the array. The model simulation results were verified on computer aided laboratory test setup built upon LabVIEW environment. The test setup comprised PV array connected to 6 kW electronic DC load which was controlled by LabVIEW application. Since test conditions should be steady during test time each measurement of real PV array full P-V curve has to be done as quick as possible. This can be assured by computer aided measurement approach where time consumming tests can be easily automated and shortened. This paper presents PV array model, describes test setup and discusses laboratory test results.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2015, 84; 183-189
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
External conditions for using solar energy in photovoltaics
Autorzy:
Frydrychowicz-Jastrzębska, G.
Bugała, A.
Powiązania:
https://bibliotekanauki.pl/articles/376144.pdf
Data publikacji:
2013
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
solar energy
photovoltaic modules
PV
Opis:
A consideration connected with the possibilities of obtaining solar energy depending on external conditions, such as: the latitude ϕ, the solar declination δ, the hour angle ω was performed. The operation of photovoltaic modules in very cloudy conditions as well as under clear sky was taken into consideration. The results of the measurements of radiation power density that reaches the surface of the photovoltaic receiver for its different positions, for the geographic location of the cities of Poznań and Playa del Ingles and for different time periods (yearly and daily) are presented in a graphical form.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2013, 74; 289-299
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Power and decorative solar façades
Autorzy:
Frydrychowicz-Jastrzębska, G.
Bugała, A.
Powiązania:
https://bibliotekanauki.pl/articles/376781.pdf
Data publikacji:
2013
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
PV
solar façades
photovoltaic module
Opis:
The work presents an analysis of the possibility of obtaining electric energy from a PV façade, both in the case of standard fitting - tilted at the angle of 90° and directed towards the south, and for a wall fitted at the angle of 75° also directed towards the south. In order to determine the energy gains expected in the second case, a computer simulation confirming the assumptions was executed.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2013, 74; 261-268
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applicability of equivalent diode models to modeling various thin-film photovoltaic (PV) modules in a wide range of temperature and irradiance conditions
Autorzy:
Prorok, M.
Werner, B.
Żdanowicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/378411.pdf
Data publikacji:
2006
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Elektronowej
Tematy:
thin-film photovoltaic
CuInGaSe2
Opis:
In the paper results of fitting of current-voltage (I-V) curves acquired in a wide range of irradiances and temperatures with use of equivalent either single (SEM) or double (DEM) diode model as applied to several commercial thin-film photovoltaic (PV) modules are presented. It is shown that like in case of crystalline silicon PV modules also for CIGS (CuInGaSe2) as well as CdTe thin-film modules both models may be reliably applied whereas in case a-Si (amorphous silicon), whether it is single or multi-junction structure, obtained results can not be accepted as being credible.
Źródło:
Electron Technology : Internet Journal; 2005-2006, 37/38, 6; 1-4
1897-2381
Pojawia się w:
Electron Technology : Internet Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of Photovoltaic Systems Using Computer Software
Autorzy:
Kut, Paweł
Nowak, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/123886.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
photovoltaic
computer simulation
solar energy
Opis:
Renewable energy sources such as solar, wind and hydroelectric power plants are an inexhaustible and clean source of electricity and heat. The development of civilization, resulting in a constant increase in the demand for electricity and the prospect of fossil fuels depletion, including coal and oil, forces us to seek new sources of energy and invest in the renewable energy sources. The development of technology and the policy of the European Union have a positive impact on the development of renewable energy sources and the increase in the installed capacity. One of the ways of obtaining electricity from renewable sources is through the photovoltaic cells. Computer software is becoming helpful in designing the photovoltaic installations. Simulations enable conducting the economic analysis and selection of the best possible installation parameters. This enables the best use of the available conditions to obtain the largest production of electricity. The article presents a project of a photovoltaic installation for a single-family building using the BlueSol Design software.
Źródło:
Journal of Ecological Engineering; 2019, 20, 10; 72-78
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 213

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