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Experimental frictional pressure gradient of R455A in multiport mini-channel tubes.
Number: 1155
Author(s) : HOANG H. N., OH J. T., KIM J. K.
Summary
The urgency of climate change requires the adoption of alternative refrigerant with reduced GWP. R455A, a blend of R1234uf. R32 and CO2 met the sub-150 GWP requirement of EU-zone F-gas regulation and is considered for long-term alternative working fluid. For system design, pressure drop data is required, therefore, in this work the pressure drop is measured inside multiport mini-channel at different working condition with a newly assembled experimental system. Result shows an increase of pressure drop with mass flux and vapor quality. Data is compared against correlations of pressure drop in literature and a correlation is proposed with fitting experimental data for engineering purposes.
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Details
- Original title: Experimental frictional pressure gradient of R455A in multiport mini-channel tubes.
- Record ID : 30034190
- Languages: English
- Subject: Technology
- Source: 1st IIR International Conference on Refrigeration Adapting to Rising Temperatures
- Publication date: 2025/08
- DOI: http://dx.doi.org/10.18462/iir.adaptation.2024.1155
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Indexing
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Themes:
Blends;
Heat transfer - Keywords: R455A; Pressure drop; Minichannel; Mixture; Comparison
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