장영수 김영일 이용철 2024-01-21T05:14:17Z 2024-01-21T05:14:17Z 2022-01-10 2005-03 1229-862X https://pubs.kist.re.kr/handle/201004/136661 Part-load performance of a screw chiller with economizer using R22 and R407C Article 2 International Journal of Air-Conditioning and Refrigeration, v.13, no.1, pp.1 - 10 International Journal of Air-Conditioning and Refrigeration 13 1 1 10 screw chiller part-load economizer R22 R407C