Numerical study of a combined Photovoltaic thermal system using cellulose Nanocrystal (CNC) Nano-fluid

This study examines the operational dynamics of a Photovoltaic/Thermal (PV/T) system, focused on simultaneous thermal and electrical energy generation under various conditions. The study covers PV/T system details, numerical modelling analysis and evaluates thermal and electrical output using Cellulose Nanocrystal (CNC) Nano-fluid. The main goal is to enhance PV system performance and reduce electricity generation costs. As the electrical output of the system is pro-foundly influenced by the operating temperature of PV cells, the integration CNC Nano-fluid is tested as a coolant to enhance PV cells' temperature control and system efficiency. The distinctive feature of this system lies in its capacity to augment electrical energy production while ameliorat-ing solar radiation exposure, effecting PV module cooling, and engendering recoverable thermal energy for residential applications. Through the examination of the proposed system, it is ascer-tained that the zenith of energy output, encompassing both electrical and thermal facets, is achieved at a solar radiation intensity of 1000W/m2 and a cooling fluid flow rate of 1.3 Kg/min, yielding 155W and 448W, respectively, with an attendant electrical efficiency of 17.1%. In con-trast, an uncooled PV module registers an electrical power generation of 142W, accompanied by an efficiency of 15.75%.