Design diagram of photovoltaic panel temperature control system

Can a photovoltaic/thermal system reduce the thermal stress of PV panels?

In this context, a photovoltaic/thermal (PV/T) system is suggested to decrease the thermal stress of the PV panel by removal of heat and make it useful at high PV module temperature. This comprehensive literature review reports PV cooling techniques, research gaps and difficulties encountered by various researchers in this technology.

How to reduce thermal stress in PV panels?

Due to high temperature, there is a decrease in electrical conversion efficiency and thermal stress in PV panels continue for a more extended period. In this context, a photovoltaic/thermal (PV/T) system is suggested to decrease the thermal stress of the PV panel by removal of heat and make it useful at high PV module temperature.

How does PV panel operating temperature affect power output?

So, it is evident that increased PV panel operating temperature results in lowered open-circuit voltage (V oc ), fill factor and power outputs by 2–2.3 mV/°C, 0.1–0.2/°C and (0.4–0.5) %/°C, respectively, with an improvement of 0.06–0.1%/°C in short-circuit current (I sc) for mono and polycrystalline photovoltaic panels.

Why are PV panels not uniformly distributed?

Due to geometric defects in concentrated systems, radiation flux and temperature are not uniformly distributed throughout the PV panel surface. Non-uniformity affects cell temperature, series resistance, and efficiency of PV systems , .

How can a passive cooling system regulate the temperature of solar panels?

Alami studied the use of a passive cooling system to regulate the temperature of PV panels, which gets raised due to the absorption of solar radiance. A porous clay coating at the PV panel's rear allows a thin water film to evaporate. The application of clay is successful, inexpensive, quiet and eco-friendly.

What is thermal management of PV modules?

Thermal management of PV modules is an attractive research area that aims to improve electrical and thermal efficiencies and leads towards sustainable energy development , . It will lead us towards the PV/T system concept that can generate electrical and thermal energy simultaneously.