Condensation heat transfer of low GWP refrigerants R1234ze(E), R1234ze(Z) and R1233zd(E) on a horizontal plain tube.
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http://www.iifiir.org/clientBookline/service/reference.asp?INSTANCE=EXPLOITATION&OUTPUT=PORTAL&DOCID=IFD_REFDOC_0015331&DOCBASE=IFD_REFDOC&SETLANGUAGE=FR
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资源简介：
In this study, the experimental data on heat transfer coefficient of free convective condensation on a horizontal plain tube are presented for R1234ze(E), R1234ze(Z), R1233zd(E), R134a and R245fa. Condensation experiment is conducted with a copper plain tube of 19.12 mm in outer diameter and 400 mm in the heat transfer length. The experiment covers saturation temperatures from 20 to 60°C and the degrees of wall subcooling from 0.77 to 28.81 K. The measured Nu of R1234ze(E) and R1234ze(Z) are agree with theoretical Nu equation within a bias of 6%. However, the experimental Nu of R1233zd(E) is biased +25%, on average, to the theoretical Nu. For more accurate HTC prediction, the sufficient transport property data would be needed for R1233zd(E).
提供机构：
International Institute of Refrigeration (IIR)
创建时间：
2016-10-19
