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Effect of Inclination and Thermoelectric Material on the Performance of Solar PV-Thermo Electric Cooling System

100%

Babu S. R. , Basha S. A. , Sasikumar G. , Kumar P. P.

tom Vol. 25, iss. 7

251--259

Solar photovoltaic (PV) systems, coupled with thermo-electric cooling, have gained significant attention as an eco-friendly solution. To enhance energy efficiency and reduce the overall environmental impact of energy generation and consumption, it is a viable option. This study investigates the impact of critical parameters, namely inclination angle of solar panels, the type of material used in thermo-electric cooling modules, on the performance of a solar PV-thermo electric cooling system. In this research, the impact of inclination angles (15°, 20°, 25°) and two materials (Bismuth telluride and Peltium telluride) of thermoelectric were considered for this study. A comprehensive series of experiments were conducted to analyze the impact of varying inclination angles of the solar panels and material of thermoelectric cooler. The average incident irradiation, panel temperature and outpower of solar panel variation with time are presented. The optimum tilt angle of the solar panel is observed as 20° and material for thermoelectric cooler is Bismuth telluride. When using Bismuth telluride as a thermoelectric material with 20° tilt angle, the solar panel’s temperature decreases by 14% and its outpower is augments by a maximum of 14.5%. The results presented here offer practical guidance for system design and operation, ultimately promoting the widespread adoption of this technology in a more environmentally conscious manner.

Comparative analyses of residential building efficiency for AC and DC distribution networks

86%

Ahmad F. , Dastgeer F. , Gelani H. E. , Khan S. , Nasir M. , Ahmad F. , Dastgeer F. , Gelani H. E. , Khan S. , Nasir M.

2021

Iterative modelling of convergent divergent passage to embed over the renewable energy resources to augment the power generation

72%

Mamidala S. , Mohan G. , Veeramani C.

Przegląd Elektrotechniczny

2023

tom R. 99, nr 1

54--57

Renewable energy resources (RERs) most required in day today life owing to its atmospheric friendly method of power generation. Power consumption is increasing day by day very drastically. So, power generation become essential without effecting the vicinity. This work emphases a work augmenting the solar PV module with additional embedment of convergent divergent system. This system comprises of see-saw module and convergent divergent module along with solar PV module. The methodology followed to design the convergent divergent module is physical iteration technique by varying the dimensions. Analysis reveals smaller convergent portion increases the fan RPM in this experiment is 1.4 cm length convergent portion. Power calculated in an average of 9V per day can be achieved. Overall system cost is very cheap and doesn’t required much maintenance. This can be incorporated with the water tank in any house, industries or anywhere, with minor modification of placing objects to make the convergent divergent passage.

Odnawialne zasoby energii (RER) są najbardziej potrzebne w dzisiejszym życiu ze względu na przyjazną dla atmosfery metodę wytwarzania energii. Zużycie energii rośnie z dnia na dzień bardzo drastycznie. Tak więc wytwarzanie energii staje się niezbędne bez wpływu na otoczenie. Praca ta kładzie nacisk na pracę rozszerzającą moduł fotowoltaiczny o dodatkowe osadzenie zbieżnego systemu rozbieżnego. System ten składa się z modułu huśtawki i modułu zbieżnego rozbieżnego wraz z modułem fotowoltaicznym. Metodologia zastosowana do zaprojektowania zbieżnego modułu rozbieżnego to fizyczna technika iteracji polegająca na zróżnicowaniu wymiarów. Analiza wykazała, że mniejsza zbieżna część zwiększa obroty wentylatora w tym eksperymencie o 1,4 cm długości zbieżnej części. Można osiągnąć moc obliczoną średnio na 9V dziennie. Całkowity koszt systemu jest bardzo tani i nie wymaga dużej konserwacji. Można go zintegrować ze zbiornikiem wody w dowolnym domu, przemyśle lub gdziekolwiek, z niewielką modyfikacją umieszczania obiektów, aby uzyskać zbieżne, rozbieżne przejście.

Comparative analyses of residential building efficiency for AC and DC distribution networks

58%

Ahmad F. , Dastgeer F. , Gelani H. E. , Khan S. , Nasir M.

tom Vol. 69, nr 2

art. no. e136732

The escalating prevalence of rooftop solar PVs and DC powered home appliances are the driving forces for the research in the field of DC distribution at residential level. The current research work presents comparative analyses of AC and DC distribution systems considering various scenarios for the specific purpose of efficiency/energy savings. A modern Bakersfield CA, USA home is considered for the analyses. The loads are classified according to the power demand. Rooftop solar PVs are also included in each residential building. Mathematical equations are devised for the efficiency analysis of residential buildings powered with AC as well as DC. The results reveal strong dependence of the efficiency values on the utilization/types of loads, efficiencies of the power electronic converters (PECs), solar capacity and seasonal conditions, as a function of the time of day. It is concluded that AC system presents better efficiency values as compared to the DC counterpart except during the time periods when solar power is available and when the penetration of variable speed drive (VSD) based loads is high.