EU PVSEC Programme Online
EU PVSEC 2021, 6 - 10 September 2021
Presentation: 5CV.2.30 The Potential of the Rejected Brine as a Coolant for PV Temperature Reduction Purposes
Type: Visual
Date: Wednesday, 8th September 2021
13:30 - 15:00
Author(s): S. Kamfiroozi, H. Ebadi, H. Vahabi, R. Talebnejad, L. Savoldi, A.R. Sepaskhah, B. Ghobadian, S. Gorjian
Presenter / Speaker: H. Ebadi, Polytechnic University of Turin, Turin, Italy
Event: Conference Conference
Session: 5CV.2 Operation, Performance and Maintenance of PV Systems
Topic: 5. 3 Operation, Performance and Maintenance of PV Systems
Keywords: PV, Cooling, RO, Brine, Efficiency Improvement
Summary / Abstract: From the working principles of PV cells, only half of the received solar spectrum (with a wavelength of 200-800 nm) is utilized for energy conversion and the remaining portion (800-3000 nm) heats the panels, decreasing the electric efficiency. To avoid such sacrifices in performance, which could expand the economic concerns and shortening PV’s lifetime, scientists have proposed various cooling mechanisms. In this study, an experimental investigation has been performed on a stand-alone PV-powered RO system to assess the electrical and thermal performance of the solar system and study the influence of the rejected brine as a coolant for PV panels. The main scope is to use brine not only for increasing the performance of solar panels by cooling effect but also for eliminating the energy needed for pumping through the utilization of the output pressure of the RO membranes. The experimental results indicated that the application of brine cooling can improve the PV efficiency from 1 to 3% depending on the feeding temperature and salinity levels.