Nucleate boiling performance of R-22, R-123, R-134a, R-410A, and R-407C on smooth and enhanced tubes

Conference · Thu Oct 01 00:00:00 EDT 1998

OSTI ID:649456

Wang, C C; Chang, Y J ^[1]; Shieh, W Y; Yang, C Y ^[2]

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1. Industrial Technology Research Inst., Hsinchu (Taiwan, Province of China). Energy and Research Labs.
2. National Central Univ., Chung Li (Taiwan, Province of China). Dept. of Mechanical Engineering

Investigation of the nucleate boiling heat transfer on several commercially available enhanced tubes and smooth tubes was carried out in this study. The working refrigerants included R-22, R-123, R-134a, R-410A, and R-407C. Experiments were conducted at saturation temperatures of 0 C and 20 C. For the W-TX tube at a given saturation temperature, the heat transfer coefficients for R-410A are the largest and for R-123 are the lowest. For the highly structured surface, W-B tube, the heat transfer coefficients for R-22 and R-410A are comparable, while the heat transfer coefficients for R-407C are the lowest.

• OSTI ID: 649456
• Report Number(s): CONF-980123-; TRN: IM9825%%69
• Resource Relation: Conference: 1998 ASHRAE winter meeting, San Francisco, CA (United States), 17-21 Jan 1998; Other Information: PBD: 1998; Related Information: Is Part Of ASHRAE transactions 1998. Volume 104, Part 1B: Symposium papers; PB: 1162 p.
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
ENERGY CONSERVATION
REFRIGERANTS
NUCLEATE BOILING
HEAT TRANSFER
TUBES
PERFORMANCE
MATERIAL SUBSTITUTION
THERMODYNAMIC PROPERTIES