하이브리드 사이클에 관한 최적화 연구

초록

For each external situations optimum working conditions for the hybrid cycle can be found. The optimization of the absorber internal temperature gradient can give us a considerable increase in COP. Theoretically, external and internal temperature gradients should be equal to maximize the performance. But by the solution heat exchanger, optimum internal temperature gradient is always larger than the external gradients. So by studying the influence of the solution heat exchanger as well as the compressor work and pump work with working conditions optimum point of operation is found. A comparison between the conventional vapor compression cycle using pure R134a and hybrid cycle using NH3/H2O gives us a good result for the hybrid cycle.