h Kavoosi balotaki - Department of Mechanical Engineering, Sharif University of Technology, Iran
m.h Saidi - Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran

Practically everyone knows the benefits of using solar energy as a renewable energy. In this paper we are trying to compare and performance triangle channel collector with other collectors, Specially flat plate and V-Shape. By this we mean that the affect of different parameter on efficiency and outlet temperature of collector are investigated.By testing collector we could plot the efficiency and temperature curves and comparethem with theoretical data and results, as an acceptable exact. The advantages of thisproject shows that the triangle channel collector cause to increase heat transfer andheat absorption coefficient efficiency and outlet temperature. Comparing to other collectors. By increasing the flow rate of fluid the efficiency of collector is in creased but the fluid outlet temperature and heat dissipation are decreased. After a certain flow rate this variation can be neglected. According to temperature limitation of agricultural crops derive about .0.0 kg/m2s

Solar Collector, Triangle Channel, Efficiency, Dryer