Efficiency analysis of the novel twin chamber rotary compressor

Abstract

The efficiency of the novel twin chamber rotary compressor was analyzed by comparing with conventional one. The increasing of the compression volume is the main advantage of the novel twin chamber compressor comparing with conventional one. To make this additional volume, newly geometric concept like vane bush was applied in the novel twin chamber rotary compressor. The losses occurred in these newly parts are different compared with the conventional one. So, the efficiency analysis of the novel rotary compressor was conducted about compressor loss aspect. To analyze these efficiencies, the simulation program was developed using numerical analysis. This program based on the conventional rotary compressor one. That means all the theoretical functions and concept of the conventional rotary compressor program was applied to novel compressor simulation program. To verify the numerical simulation method of the novel compressor program, experimental and simulation results were compared. Error between the simulation and experimental results were expressed in 4.2 to 8.6%. So, the simulation program showed a good agreement with experiments. Cooling capacity of the novel compressor is higher 34.68% compared conventional compressor. The input power of the novel rotary compressor is increased about 24.94% in ARI and 22.06% in CHEER conditions compared conventional one. Energy efficiency was evaluated with EER and the novel rotary compressor is improved about 8.06% in ARI and 10.76% in CHEER condition compared with conventional one.