An overview for the heat transfer performance of HFO-1234yf

Chi-Chuan Wang*

*Corresponding author for this work

研究成果: Review article同行評審

23 引文 斯高帕斯(Scopus)

摘要

This study provides an overview about the two-phase heat transfer performance for HFO-1234yf which is made to substitute R-134a. Based on the limited information, it is found that the nucleate boiling heat transfer coefficient (HTC) and convective boiling HTC for HFO-1234yf are comparable to R-134a provided q<200 kW m-2. The critical heat flux for HFO-1234yf is about 20-40% lower than that of R-134a. For external condensation, the only database shows that the HTC between HFO-1234yf and R-134a is also negligible. However, it is found that the major thermophysical properties influencing condensing HTC suggest a lower HTC of HFO-1234yf. For in-tube condensation, it is found that the condensation HTCs for HFO-1234yf are inferior to those of R-134a, and the difference increases with the rise of vapor quality. The predictive correlations applicable for pressured drop for HFO-1234yf are not consistent, it is probably attributed to the difference in tube diameter in the publications.

原文English
頁(從 - 到)444-453
頁數10
期刊Renewable and Sustainable Energy Reviews
19
DOIs
出版狀態Published - 1 一月 2013

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