Heat transfer characteristics of R‐454B and R‐454B/POE‐oil mixture on smooth and GEWA tube: Alternative to R‐410A

• Published in: International journal of heat and mass transfer Vol. 193; p. 122972
• Main Authors: Kumar, Abhishek, Wang, Chi-Chuan
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.09.2022; Elsevier BV
• Subjects: Boiling; Compatibility; Evaporators; GWP; Heat flux; Heat transfer; Heat transfer coefficients; HTC; Lubricants; POE-oil; Pool boiling; Pressure dependence; R-410A; R-454B; Refrigerants; Saturation; Temperature; Tubes; POE-oil; GWP; R-454B; R-410A; HTC; Pool boiling

•Pool boiling heat transfer of blends R-454B and R-410A is reported.•Tests are conducted on smooth and GEWA-B5H tubes at different evaporator pressure.•Heat transfer coefficients of R-454 are 26 – 34% lower than R-410A on both tubes.•The effect of POE-oil (mass fraction: 0 – 10%) on HTCs with R-454B...