Thermal modeling optimization and experimental validation for a single concentrator solar cell system with a heat sink

摘要

A single concentrator solar cell model with a heat sink is established to simulate the thermal performance of the system by varying the number,height,and thickness of fins,the base thickness and thermal resistance of the thermal conductive adhesive.Influence disciplines of those parameters on temperatures of the solar cell and heat sink are obtained.With optimized number,height and thickness of fins,and the thickness values of base of 8,1.4 cm,1.5 mm,and 2 mm,the lowest temperatures of the solar cell and heat sink are 41.7 ℃ and 36.3 ℃ respectively.A concentrator solar cell prototype with a heat sink fabricated based on the simulation optimized structure is built.Outdoor temperatures of the prototype are tested.Temperatures of the solar cell and heat sink are stabilized with time continuing at about 37 ℃-38 ℃ and 35 ℃-36 ℃ respectively,slightly lower than the simulation results because of effects of the wind and cloud.Thus the simulation model enables to predict the thermal performance of the system,and the simulation results can be a reference for designing heat sinks in the field of single concentrator solar cells.