PELTIER COOLING FOR LOW CONCENTRATION PHOTOVOLTAIC CELLS: NUMERICAL MODELING AND FEASIBILITY STUDY

摘要

Thermal management of concentrating photovoltaic (CPV) panels is known as a major concern that has been investigated in the recent years. Appropriate cooling techniques must be employed to maintain optimum cell temperature, thus improving system efficiency and life cycle. Thermoelectric cooling offers several attractive characteristics including high controllability, no need to refrigerant, modularity, quiet operation and more. In this paper, the possibility of using convective cooling using a water channel along with thermoelectric cooling for a low concentration photovoltaic (LCPV) module is investigated. A numerical model is developed using COMSOL Multiphysics® and MATLAB® to assess the performance of a novel CPV-TE system. The proposed system consists of a Thermoelectric cooling (TEC) module attached to the backside of a photovoltaic (PV) cell. A water channel has been implemented on the backside of the Peltier module to provide effective heat removal using water flow. A parametric study is conducted on the proposed system by varying solar concentration incident on the PV, input current to the Peltier cooler and inlet velocity and temperature of the water flow. The temperature distribution through the system, power output from the PV module and energy consumption by the Peltier module are determined under different operational circumstances. The results are extensively discussed to provide an understanding regarding the feasibility of the proposed system.