Investigation of Thermal Performance of Air-Heating Solar Collectors

In this paper, Homotopy perturbation method (HPM) is applied to investigate heat transfer in the air-heating flat-plate solar collectors. Results for different values of active parameters are compared with numerical method (the Runge-Kutta method of order ۴). The results confirm the notion that the HPM method is efficient technique for finding exact solutions for differential equations which have great significance in different fields of science and engineering. Effects of air flow rate, width and length of the collector on thermal efficiency are examined.

کلیدواژه ها:

solar energy ، Air-heating solar collector ، Temperature-dependent specific heat coefficient ، Thermal efficiency ، HPM