IIR document
Experimental two-phase heat transfer coefficient and frictional pressure drop inside mini-channels during condensation with R1234yf and R134a
Author(s) : ILLÁN GÓMEZ F., LÓPEZ BELCHÍ A., GARCÍA-CASCALES J. R., et al.
Type of article: Article, IJR article
Summary
The present paper reports condensing two-phase flow pressure drop gradient and heat transfer coefficient (HTC) inside a mini-channel multiport tube with R1234yf and R134a. Several models available in the literature are used to compare predictions of these two fluids. Experimental data are analysed to get the influence of saturation temperature, mass flux, vapour quality and fluid properties. HTC values of R1234yf seem to be lower than R134a under similar conditions. Two-phase flow pressure drops are also lower in the case of the new refrigerant R1234yf.
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Details
- Original title: Experimental two-phase heat transfer coefficient and frictional pressure drop inside mini-channels during condensation with R1234yf and R134a
- Record ID : 30013494
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 51
- Publication date: 2015/03
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