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Boiling heat transfer characteristics of R32 in small channel.
Number: pap. TP-0043
Author(s) : CHIEN N. B., VU P. Q., CHOI K. I., et al.
Summary
This study reports the two-phase flow boiling heat transfer coefficient of R32 in minichannel. The experimental data were conducted in horizontal stainless steel tubes with the inner diameter of 1.5 mm. The testing conditions were conducted with the mass fluxes range from 300 to 500 kg/m2s, the heat fluxes from 5 to 15 kW/m2, the saturation temperature of 10°C and 15°C the vapor quality from 0.1 to dry-out. The effects of mass flux, heat flux and saturation temperature on the heat transfer coefficient were analyzed. The experimental data were also compared with some well-known heat transfer coefficient correlations and the new correlation was developed using the present experimental data.
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Details
- Original title: Boiling heat transfer characteristics of R32 in small channel.
- Record ID : 30021541
- Languages: English
- Source: 5th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants.
- Publication date: 2017/04/23
- DOI: http://dx.doi.org/10.18462/iir.tptpr.2017.0043
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Indexing
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Themes:
HFCs;
Heat transfer;
Two-phase flow - Keywords: Two-phase flow; Correlation; Minichannel; Heat transfer; R32; Boiling
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