대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2001년도 춘계학술대회논문집D
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- Pages.425-432
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- 2001
세관 내 액단상 열전달 및 압력강하 특성에 관한 연구
Study on the Single-Phase Heat Transfer and Pressure Drop Characteristics of R-718 in Small Diameter Tubes
초록
Single-phase heat transfer coefficients and pressure drops of R-22 were measured in smooth, horizontal copper tubes with inner diameters of 3.36 mm, 5.35 mm, 6.54 mm and 8.12 mm, respectively. The experiments were conducted in the closed loop, which was driven by a magnetic gear pump. Data are presented for the following range of variables: Reynolds from 1000 to 20000. Single-phase heat transfer coefficients increased by
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