Temat: PV module - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Low voltage PV array model verification on computer aided test setup
Autorzy:: Tomaszuk, A.
Tematy:: PV module model
Photovoltaic Systems; Pokaż więcej
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Powiązania:: https://bibliotekanauki.pl/articles/376132.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Zinc-selective light diffuser for enhanced efficiency andreduced degradation in photovoltaic modules
Autorzy:: Jeremiasz, Olgierd
Kulesza-Matlak, Grażyna
Sobik, Piotr
Nowak, Paweł
Grübel, Klaudiusz
Drabczyk, Kazimierz
Tematy:: PV module
laser technologies
light diffuser; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Powiązania:: https://bibliotekanauki.pl/articles/59113072.pdf Link otwiera się w nowym oknie
Opis:: This article introduces a zinc metal layer structure integrated into a standard photovoltaic (PV) module, potentially serving a double purpose: as a light reflecting and re-directing diffuser, increasing the PV module overall efficiency, offering anodic protection of Ag/Sn interface against corrosion within the PV module structure. The ethylene-vinyl acetate (EVA) cross-linking degree and peel force measurements were carried out to check the quality of the encapsulation process for the modified modules. Finally, the electrical series resistance of PV modules was measured showing that the modified PV module almost maintained its initial series resistance after exposure to damp-heat conditions of 85 °C, 85% relative humidity for 1000 h, while the unmodified PV module increased its resistance by 5% under the same conditions.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Selected solutions in photovoltaic systems increasing their efficiency
Autorzy:: Frydrychowicz-Jastrzębska, G.
Bugała, A.
Tematy:: solar cell
concentrator
PV module
power gain; Pokaż więcej
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Powiązania:: https://bibliotekanauki.pl/articles/97495.pdf Link otwiera się w nowym oknie
Opis:: The basic objective in photovoltaics is obtaining electrical energy with the costs comparable to the costs of energy obtained from conventional fuels. The effectiveness of acquisition of electrical energy from solar cells can be improved, among other things, by using solar radiation concentrators. Photovoltaic systems with low concentration (LCPV) and high concentration (HCPV) were characterised [13]. The possibilities of their operation under various conditions were presented, whereas the impact of temperature and concentration angle were considered in particular. The most modern solutions were presented, including Spin cell, Ephocell, Interdigitated Back Contact (IBC), Luminescent Solar Concentrator (LSC), High Concentration PhotoVoltaic Thermal (HCPVT), Concentration PhotoVoltaic (CPV), Telecontrolli. Results of current Polish research were given. In the years from 1985 to 2010 the increase from 17,5 % to 40,7 % in the efficiency of solar cells with concentrators was achieved [18].
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Construction requirements for a testing laboratory of photovoltaic modules
Uwarunkowania budowy laboratorium badań modułów fotowoltaicznych
Autorzy:: Neska, M.
Majcher, A.
Tematy:: photovoltaics
PV module testing
accreditation
fotowoltaika
badanie
moduł PV
akredytacja; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/258400.pdf Link otwiera się w nowym oknie
Opis:: This article presents the requirements for the establishment of an accredited testing laboratory for photovoltaic modules with crystalline silicon. A process of the construction of the testing laboratory for PV modules, based on the expansion of an existing accredited testing laboratory, is proposed. The chosen standard test procedures in the field of the safety and quality of the operation of photovoltaic modules with crystalline silicon are described in detail. The analysis can help in making a rational decision on the appointment of an accredited laboratory for photovoltaic modules, particularly when there already is apparatus for performing tests in accordance with the Low Voltage Directive and the Electromagnetic Compatibility Directive.
W artykule zaprezentowano wymagania dotyczące utworzenia akredytowanego laboratorium badawczego modułów fotowoltaicznych z krzemu krystalicznego. Zaproponowano proces utworzenia laboratorium badań modułów PV na bazie rozbudowy istniejącego akredytowanego laboratorium badawczego. Przedstawiono szczegółowo wybrane normatywne procedury badawcze z zakresu bezpieczeństwa i jakości funkcjonowania modułów fotowoltaicznych z krzemu krystalicznego. Zaprezentowana analiza może wspomóc podjęcie racjonalnej decyzji o powołaniu akredytowanego laboratorium badań modułów fotowoltaicznych, w szczególności w przypadku posiadania wyposażenia do realizacji badań zgodnych z wymaganiami Dyrektywy Niskonapięciowej lub Kompatybilności Elektromagnetycznej.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Experimental Study of Temperature Influence on the Performance of PV/T Cell under Jordan Climate Conditions
Autorzy:: Al-Odat, Mohammed Qassim
Tematy:: PV module
electrical conversion
electrical efficiency
water cooling
cooling
cell temperature; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/2202185.pdf Link otwiera się w nowym oknie
Opis:: The electrical performance and the productivity of PV module depend on two main parameters, i.e. the radiation intensity and the cell operating temperature. The module electrical efficiency and productivity are significantly reduced as its temperature increases. Accordingly, cooling of PV modules is one of the most effective techniques to obtain higher efficiency and productivity as well as to reduce the degradation modes of PV modules due to high temperatures. This research work presents an experimental study carried out to investigate the effect of PV module cooling on the performance of PV module under Irbid city (Jordan) climate conditions. It was found that the electrical efficiency and the productivity of the PV modules were approximately enhanced by 14%. Therefore, water cooling of the PV modules is essential to enhance their performance.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Solar Hot Water Heating and Electricity Generation Using PV/T Hybrid System
Autorzy:: Badran, Ali A.
Obeidat, Firas A.
Tematy:: solar energy system
water heating system
PV module
flat plate solar collector; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/2086426.pdf Link otwiera się w nowym oknie
Opis:: Experimental work has been carried out to study the possibility of combining a conventional solar water collector with a hybrid device, developed previously and known as PV/T system, in order to obtain hot water with temperature above 40 °C. The effect of the combination on the productivity of hot water and the produced electricity was found. The formerly developed device, in which there was a multi-purpose solar collector, can produce hot water and electricity. It was connected to the conventional fin-tube collector in series in order to raise the product temperature to a higher level. This development was achieved for the first time as a combination between a PV/T and a conventional fin-tube collector. Instrumentation to measure temperatures, solar radiation, wind speed and flow rate was installed on the system. It was found that the water temperature was raised from 29 °C to 32 °C in the PV/T collector system and, after flowing through the conventional collector, it was raised to 50 °C and above. It was also found that the power efficiency in the case of water flow is always higher than in the case of no water flow.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The efficiency of grid-tied PV systems on small farms in Latvia
Autorzy:: Stanka, Normunds
Aboltins, Aivars
Tematy:: energia odnawialna
energia słoneczna
moduł fotowoltaiczny
energia elektryczna
renewable energy
solar power
PV module
grid-tied system
electricity; Pokaż więcej
Wydawca:: Politechnika Częstochowska
Powiązania:: https://bibliotekanauki.pl/articles/2065638.pdf Link otwiera się w nowym oknie
Opis:: Photovoltaic (PV) systems are becoming more and more popular around the world, and Latvia is not an exception. This is mainly due to the increased efficiency and reduction in price of PV modules. However, Latvia still ranks below most European Union countries in the use of PV modules for electricity production. A significant problem for many farms and households in Latvia which use PV modules, is the lack of storage for the produced electricity. As a result, large amounts of electricity are sold for a relatively low price and while being bought from the main grid for a relatively high price. The aim of the study is to determine and compare the electricity consumption and PV systems producing electricity each month on the Jasmini Farm during 2020. The study shows that during the year, only 25.4% of all the electricity used on the Jasmini Farm was from PV modules, but the rest of the electricity was bought from the main grid. Furthermore, from all the electricity which PV modules produced in 2020, only 29.5% was used on the farm, while the rest was sold to the main grid.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Power and decorative solar façades
Autorzy:: Frydrychowicz-Jastrzębska, G.
Bugała, A.
Tematy:: PV
solar façades
photovoltaic module; Pokaż więcej
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Powiązania:: https://bibliotekanauki.pl/articles/376781.pdf Link otwiera się w nowym oknie
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.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The impact of selected parameters on the efficiency of a photovoltaic installation with bifacial modules in local conditions
Autorzy:: Walichnowska, Patrycja
Idzikowski, Adam
Mahdi, Sahib M.
Tematy:: photovoltaic
efficiency
bifacial module
PV system
fotowoltaika
efektywność
moduł dwustronny
system PV; Pokaż więcej
Wydawca:: Politechnika Częstochowska
Powiązania:: https://bibliotekanauki.pl/articles/31342514.pdf Link otwiera się w nowym oknie
Opis:: The article presents a comparison of the results of simulation by a photovoltaic installation with bifacial modules. The analyzed 20 kWp PV installation was located in the Kuyavian-Pomeranian Voivodeship. The article compares how the energy production of installations with bifacial modules changes depending on the angle of inclination, the distance between the rows of modules and the orientation. The results obtained in the study indicate that albedo is an important, but not the only parameter to be considered when designing a farm with bifacial modules.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Roczna wydajność instalacji PV zamontowanej na dachu budynku dydaktycznego Uniwersytetu Opolskiego
Annual efficiency of a PV installation mounted on the roof of the University of Opole didactic building
Autorzy:: Świsłowski, P.
Dębska, L.
Rajfur, M.
Rodziewicz, T.
Tematy:: alternatywne źródła energii
fotowoltaika
PV
moduł fotowoltaiczny
uzysk energetyczny
ekologia
renewable energy sources
photovoltaics
photovoltaic module
energy yield
ecology; Pokaż więcej
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/126628.pdf Link otwiera się w nowym oknie
Opis:: Celem badań była analiza i ocena sprawności pracy instalacji fotowoltaicznej zamontowanej na dachu budynku dydaktycznego Uniwersytetu Opolskiego mieszczącego się przy ul. Kominka 6 w Opolu. Zakres pracy obejmował ocenę: energetyczną - uzysku energetycznego (ilość wyprodukowanego prądu a położenie geograficzne paneli fotowoltaicznych) i ekologiczną - redukcja emisji szkodliwych substancji niewyemitowanych do aerozolu atmosferycznego z powodu produkcji prądu przez instalację PV, a niedostarczonej przez elektrownię opalaną węglem. Badania wykazały dobry wynik uzysku energetycznego w ciągu roku - 5,30 MWh energii z tego systemu oraz znaczną redukcję emisji CO₂ do atmosfery - 4,27 Mg/rok, co potwierdza ekologiczny charakter instalacji fotowoltaicznych.
The objective of the carried out study was to analysis of operation and effectiveness assessment of the photovoltaic system installed on the roof of the University of Opole building located at Kominka 6 street in Opole. The scope of the study included an assessment of: power generation - energy yield (quantity of generated electricity and geographical location of photovoltaic panels) and ecological - reduction of emission of harmful substances not emitted to the atmospheric aerosol for the production of electricity by the PV installation and not provided by the coal-fired power plant. The studies showed good result of energy production during the year 5.30 MWh energy from this system, and significant reduction of CO₂ emission to atmosphere 4.27 Mg/year which indicates the ecological motivation of projects fort the installation of renewable energy sources.
Dostawca treści:: Biblioteka Nauki

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