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Electrical and Exergy Analysis of a Simple Pass Photovoltaic–Thermal (PV/T) Air Heater with Slats Under Weather Conditions of the Far Nord Region, Cameroon
Volume 4, Issue 2, April 2019, Pages: 41-51
Received: Mar. 23, 2019; Accepted: Apr. 23, 2019; Published: May 26, 2019
Authors
Paiguy Armand Ngouateu Wouagfack, Department of Renewable Energy, Higher Technical Teachers’ Training College, University of Buea, Kumba, Cameroon
Ariane Laurelle Ngankou, Department of Physics, Faculty of Science, University of Yaoundé 1, Yaoundé, Cameroon
Noël Djongyang, Department of Renewable Energy, National Advanced School of Engineering, University of Maroua, Sahel, Cameroon
Réné Tchinda, University Institute of Technology Fotso Victor, University of Dschang, Bandjoun, Cameroon
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Abstract
In this paper, a simple pass photovoltaic-thermal air heater system with slats has been considered to study its electrical and exergy performance by theoretical and numerical analysis. The collector has been modeled in such a way that the absorber plate is totally covered by photovoltaic modules. The climatic data (solar irradiation, ambient temperature) of the Far Nord region of Cameroon have been used. Thin metallic strips called slats have been attached longitudinally at the bottom side of the absorber plate of the system. The first and second laws of thermodynamics have been applied to write the equations describing the functioning of the system. These equations have been solved by numerical computation using the gradient conjugate method. The influences of some operating parameters on the electrical and overall exergy efficiencies were investigated. It was found that (i) it is of great importance to use slats as an integral part of the absorber surface in order to achieve better efficiencies of single pass photovoltaic-thermal systems and (ii) the instantaneous overall electrical and overall exergy efficiencies of a simple pass hybrid (PV/T) solar air heater varies between 9-12% and 11,5-18,5% respectively.
Keywords
Simple Pass, Exergy, Hybrid Photovoltaic Thermal, Solar Air Heater, Slats, Electrical Energy
Paiguy Armand Ngouateu Wouagfack, Ariane Laurelle Ngankou, Noël Djongyang, Réné Tchinda, Electrical and Exergy Analysis of a Simple Pass Photovoltaic–Thermal (PV/T) Air Heater with Slats Under Weather Conditions of the Far Nord Region, Cameroon, Advances in Applied Sciences. Vol. 4, No. 2, 2019, pp. 41-51. doi: 10.11648/j.aas.20190402.12
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