Photovoltaic evaporative chimney as a new alternative to enhance solar cooling
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AuthorLucas Miralles, Manuel; Aguilar Valero, Francisco Javier; Ruiz Ramírez, Javier; García Cutillas, Clemente; Sánchez Kaiser, Antonio; [et al.]
Knowledge AreaMecánica de Fluidos
SponsorsThe authors wish to acknowledge the collaboration in the experimental work of the following Mechanical and Electrical Engineering students: S. Rodríguez, J.F. Bernal, P. Díez, H. Garcés, C. Selva, V. García, J. Navas and E. Gálvez; and especially to E. Sánchez for his amazing work as a lab technician.
Bibliographic CitationLucas, M., Aguilar, F. J., Ruiz, J., Cutillas, C. G., Kaiser, A. S., & Vicente, P. G. (2017). Photovoltaic Evaporative Chimney as a new alternative to enhance solar cooling. Renewable Energy, 111, 26–37. doi:10.1016/j.renene.2017.03.087
Cooling sector plays a crucial role in the World’s transition towards an efficient and decarbonised energy system. Solar cooling is an attractive idea because of the chronological coincidence between available solar radiation and cooling needs. This paper studies the possibility of increasing the efficiency of solar photovoltaic modules by evaporative cooling. This, combined with the use of a water condensed chiller, will enable an efficient cooling system design as a whole. To achieve this goal this paper experimentally evaluates the thermal and electrical performance of a Photovoltaic Evaporative Chimney. A prototype with two photovoltaic modules was built; one of them is used as a reference and the other is modified in its rear side including the evaporative solar chimney. The system is able to dissipate a thermal power of about 1500 W with a thermal efficiency exceeding 30% in summer conditions. The module temperature differences reach 8 K, depending on the wind conditions and ambient ...
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