노승탁 신지영 Chang Young Soo 2024-01-13T23:00:51Z 2024-01-13T23:00:51Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/112344 English alternative refrigerants refrigeration system refrigeration capacity COP refrigerant mixture Cycle performance of the refrigeration system using alternatives to R12 and R22. Conference 1 Technical Conference, Heat Pumps In Cold Climates, pp.71 - 80. Technical Conference, Heat Pumps In Cold Climates 71 80. KO