| Title |
Comparison of Performance Characteristics with Heat Exchanger Type in CO2 Cycle |
| Authors |
배경진(Kyungjin Bae) ; 조홍현(Honghyun Cho) |
| Keywords |
이산화탄소 사이클 ; 핀-관 열교환기 ; 마이크로채널 루버핀 열교환기 CO2 cycle ; Fin-tube heat exchanger ; Microchannel louver fin heat exchanger |
| Abstract |
The theoretical analysis of performance characteristics in a CO2 cycle with the heat exchanger type was carried out. The size and performance of the fin-tube and microchannel heat exchanger were compared with operating conditions. As a result, the performance of the fin-tube gascooler and evaporator were more sensitive to the variation of operating condition compared to that of the microchannel gascooler and evaporator. Beside, the sizes of microchannel gascooler and evaporator could be decreased by 73% and 76%, respectively, compared to those of the fin-tube type gascooler and evaporator with the similar capacity. The COP and reliability of the CO2 system can be increased by using a microchannel heat exchanger. |