한화택 Thomas H. Kuehn 김영일 2024-01-21T16:06:58Z 2024-01-21T16:06:58Z 2022-01-10 1999-01 0001-2505 https://pubs.kist.re.kr/handle/201004/142526 American Society of Heating, Refrigerating and Air-Conditioning Engineers Local mean age measurements for heating, cooling, and isothermal supply air conditions Article 1 ASHRAE transactions, v.105, pp.1 - 8 ASHRAE transactions 105 1 8 ventilation local mean age tracer gas