Ali Amiri - Ph.D Student , Micro and Nano Mechanical Theory , Department of Mechanical Engineering, Tsinghua University , Beijing 100074, China

Solar cells due to advantages such as no need for fuel economy is widely used own again.One of the major problems in the use of solar cells to reduce heat transfer efficiency byincreasing the temperature one way to deal with this phenomenon is the use of nanofluids forthermal transfer. Due to the high price of nanofluids must occur in small quantities in thefluid to be cost-effective. In this paper, Nano- copper alloy as a base fluid in differentconcentrations in fluids, water and ethylene glycol was used.Based on the results becameclear Low concentrations of nano-fluid long time Better performance in water-based fluidsfor heat transfer As well as economically effective.

solar cell, heat transfer, nanofluids, water, ethylene glycol