철도차량의 폐기단계에서 냉매시스템 냉매회수효율 향상 연구

초록

The refrigerant of air-condition system at the end-of-life stage of railcar was not recovered efficiently because of no regulations in Korea. We tested the refrigerant recovery efficiency from the air conditioning system to develop a refrigerant recovery device. During the recovery of refrigerant, the refrigerant recovery velocity was reduced steadily by the frozen problem of air-conditioning system because of no power supply at the end-of-life stage. The purpose of this study was to develop the heating system using high-frequency and hot-air. Finally, the total refrigerant recovery period was decreased comparing with the experimental results without heating system.