$CO_2$용 마이크로채널 가스쿨러의 운전조건 변화에 따른 성능특성에 관한 해석적 연구

Simulation Study on the Performance Characteristics of $CO_2$ microchannel gascooler with Operation Conditions

The purpose of this study is to determine the performance characteristics for the micro-channel gascooler with various operating conditions. The performance of four kind of HX models were analyzed and optimized with the variation of refrigerant inlet temperature, air velocity, outdoor temperature. As a result, Model B showed the maximum capacity and high performance could be maintained for wide operating conditions. Beside, the micro-channel heat exchanger could be appled to $CO_2$ system appropriately because of a small pressure drop and high heat transfer rate.