Thermal Experimental Investigation on Air Cooled PV Panel

Authors

  • A. Crăciunescu Author
  • A. M. Croitoru Author
  • G. Colț Author
  • C. L. Popescu Author
  • M. O. Popescu Author

DOI:

https://doi.org/10.24084/repqj14.414

Keywords:

photovoltaic energy, air cooling, thermal model

Abstract

The cooling of PV panels has the potential to reduce the cost of solar energy. By proper circulation of a fluid with low inlet temperature, heat can be extracted from PV modules, keeping the electrical efficiency at satisfactory values. In this paper, the dynamic of air cooled PV panels’ temperature are experimentally investigated. The following measurements were made: a) the PV panel open circuit voltage decreasing, in the absence of the cooling air forced circulation, from the moment when the PV panel was exposed to the Sun; b) the PV panel open circuit voltage increasing, in the presence of the cooling air forced circulation, starting from the initial value due of the captured solar radiation, measured in the absence of the cooling air forced circulation; c) the PV panel front temperature distribution during the increasing and decreasing of the panel temperature. Based on the results of these measurements, the parameters of a simple dynamic thermal model of the PV panel were estimated.

Author Biographies

  • A. Crăciunescu

    Faculty of Electrical Engineering 
    University ”Politehnica” of Bucharest 
    Splaiul Independenței, 313, 060042-București (Romania) 

  • A. M. Croitoru

    Faculty of Electrical Engineering 
    University ”Politehnica” of Bucharest 
    Splaiul Independenței, 313, 060042-București (Romania)

  • G. Colț

    Faculty of Electrical Engineering 
    University ”Politehnica” of Bucharest 
    Splaiul Independenței, 313, 060042-București (Romania) 

  • C. L. Popescu

    Faculty of Electrical Engineering 
    University ”Politehnica” of Bucharest 
    Splaiul Independenței, 313, 060042-București (Romania) 

  • M. O. Popescu

    Faculty of Electrical Engineering 
    University ”Politehnica” of Bucharest 
    Splaiul Independenței, 313, 060042-București (Romania)

Published

2024-01-16

Issue

Section

Articles