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Condensation of refrigerants in horizontal microfin tubes: comparison of prediction methods for heat transfer.
Author(s) : WANG H. S., HONDA H.
Summary
The refrigerants tested were R11, R123, R134a, R22 and R410A. Experimental data for six tubes with an inside diameter at fin root of 6.49 to 8.88 mm, fin height of 0.16 to 0.24 mm, fin pitch of 0.34 to 0.53 mm and helix angle of groove of 12-20 °C were adopted. The r.m.s. error of the predictions for all tubes and all refrigerants decreased in order of the correlations proposed by Cavallini et al. (1995), Shikazono et al. (1998, Luu and Bergles (1980), Kedzierski and Goncalves (1999), Yu and Koyama (1998), and the theoretical model proposed by Wang et al. (2001).
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Pages: 2001-5
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Details
- Original title: Condensation of refrigerants in horizontal microfin tubes: comparison of prediction methods for heat transfer.
- Record ID : 2003-0672
- Languages: English
- Source: Thermophysical Properties and Transfer Processes of New Refrigerants.
- Publication date: 2001/10/03
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Indexing
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Themes:
HCFCs;
HFCs;
Mass transfer;
Blends - Keywords: R410A; R134a; Horizontal tube; Extended surface; Comparison; Calculation; Microfin tube; Measurement; Mass transfer; Heat transfer; R22; R123; Miniaturization; Refrigerant; Condensation
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