Joule heating estimation of photovoltaic module through cells temperature measurement

Abstract

Module temperature has a role in determining a PV module's performance. The purpose of this paper is to estimate the Joule heating in a photovoltaic (PV) module by comparing during PV-On (electricity generation) and PV-Off (without electricity generation). Joule heating was less evaluated due to simplifying formulation, which is easier to implement in experimental observation as proposed in this work. The experiment collected the temperature distributions of the PV module during PV-On and PV-Off. PV module temperature distribution follows the normal distribution curve as the irradiation uniformity pattern of the solar simulator has a slight ≤0.3 oC difference between PV-On and PV-Off. Joule heating slightly increased the PV module temperature by 0.53 K/A, proportional to the irradiances. Joule heating has increased almost seven times from 2.65 W at 700 W/m2 to 18.07 W at 1000 W/m2. Joule heating might slightly increase the overall thermal conductivity and slightly decrease the thermal resistances. It might affect the heat transfer. This research may improve the procedures prediction of PV or photovoltaic-thermal (PVT) collector temperature by considering Joule heating.

Advancements in the stability, protection and lead-free strategies of perovskite solar cells: a critical review

“…Many types of heating are produced in SC, including joule and Peltier heat. Joule heating is an internal heat source when an electrical current passes through a resistive medium [118]. Peltier heat refers to the dissipation of heat at the interface between metal and semiconductor is an additional factor that contributes to the formation of internal heat and impacts the performance of the cells [119,120].…”

“…Joule heating is an internal heat source when an electrical current passes through a resistive medium. 118 Peltier heating refers to the dissipation of heat at the interface between the metal and semiconductor and is an additional factor that contributes to the formation of internal heat and impacts the performance of the cells. 119,120 Because the internal heat suffers from a wide range of intrinsic defects reproduced, including atomic vacancy, interstitials and wider dimensionality imperfections present in perovskite lms are a signicant element inuencing the durability and efficiency of PSCs.…”