The Experimental Study On The Solar Semiconductor Air Conditioner

With the development of the solar and semiconductor refrigeration technology,solar energy conversion efficiency and cooling efficiency of the semiconductor havebeen greatly improved. Solar semiconductor air conditioner is experimental studied bymaking the solar power and semiconductor refrigeration technology union in this paper.Firstly, based on the basic principles, development and application of the solarphotovoltaic and semiconductor cooling, experimental system is designed. Theexperiment shows that the optimum angle is about25°. The fill factor of solar energycell is almost0.59, and the conversion efficiency is about10.4%. The tests of the solarradiation shows, with the increase of the solar radiation intensity, the open-circuitvoltage increases logarithmically and the short-circuit current increases linearly. Whenthe radiation intensity is constant, the increasing of the temperature will result in thedecreasing of the open-circuit voltage and increasing of the short-circuit current.Secondly, In refrigeration experiment, when the operating current increases, thecell temperature is first decreased and then increased. With the increase ofenvironmental temperature and the power of the fan, the cell temperature is increasedand decreased respectively. In heating experiment, with the increase of the operatingcurrent, the cell temperature is increased, and it can be adjusted by changing theoperating current.Finally, the operation cost and the benefit due to energy saving is analyzed. Whencalculated according to20years life, the average annual cost is1009.3Yuan. By makingthe electricity produced of the system converts into coal, the reduction of the pollutantemission is5.970t, the total emission-reduction benefits is30958.5Yuan.