Selection of working pairs for vapor compression and absorption hybrid refrigeration system for data center
A vapor compression and absorption hybrid refrigeration system for data center using green power for heat storage as a driving heat source is proposed.Mathemati-cal model of the system is established,and the effects of different working pairs(NH3/H2O,NH3/LiNO3,NH3/NaSCN,R32/DMF,R134a/DMF and R600a/n-octane)on the COP and green power consumption capacity of the absorption refrigeration mode are simu-lated and studied.The results show that under different conditions,the system under ab-sorption refrigeration mode using NH3/LiNO3 working pair has the highest COP,reaching 0.496-0.635;under design condition,the system using NH3/LiNO3 working pair has the highest COPG and COGP,reaching 0.833 and 2.307 respectively.Considering the energy effi-ciency of absorption refrigeration and the green power consumption capacity,NH3/LiNO3 work-ing pair is more suitable working pair for the hybird refrigeration system.
data centergreen powerabsorption refrigerationworking pairsCOP
万方数据
维普
