The discuss of the performance of semiconductor refrigeration along with evaporative cooling

An air-conditioning system which combines evaporative cooling with semiconductor refrigeration is put forward.Inlet and outlet water temperature is measured,and formula is derived.The relationship of semiconductor refrigerating device between COP,refrigeration power and current is obtained under different conditions.The experimental results show that the best operating current of the semiconductor refrigerating piece is 3 to 4A.At this time,the refrigeration coefficient can be as high as 4.2.It is obtained that series conditions is slightly better than the parallel conditions,the higher volume of water is slightly better than the lower one.Four groups of semiconductor refrigerating device which is combined with evaporative cooling equipment can meet the needs of 20 m2 air-conditioning area.