Study on Thermal Performance of a New Solar Air Heating Collector

摘要

The thermal performance of a new Solar air Collector with Colored Fins (SCCF) used for heating was studied. A macroscopic model was proposed based on the law of mass and energy conservation. The effects of the parameters such as dimensions of SCCF, fin angle and material of the fins on the outlet air temperature, airflow rate, effective energy and thermal efficiency were discussed. The results indicate that thermal performance of SCCF can be obviously improved by the increases of aspect ratio, fin angle and vent size. The air flow rate is the dominated factor affecting effective energy and thermal efficiency of SCCF. All these study can be used for guiding the design of SCCF.