A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Heat transfer and pressure drop of R1123/R32 (40/60 mass%) flow in horizontal microfin tubes during condensation and evaporation
In this study, the heat transfer coefficient (HTC) and pressure drop of the new low global warming potential refrigerant mixture R1123/R32 (40/60 mass%) in a 6.0 mm OD horizontal microfin tube during condensation at 40 °C and evaporation at 10 °C are experimentally quantified. The data are then compared to the component R32. Both the condensation HTC and pressure drop of R1123/R32 (40/60 mass%) are somewhat lower than those of R32. Similarly, the pressure drop of R1123/R32 during the evaporation process at 10 °C is somewhat lower than that of R32. However, the evaporation HTC is comparable to that of R32. The lower surface tension of R1123/R32 can enhance the nucleate boiling and compensate the heat transfer degradation due to the volatility difference.
Heat transfer and pressure drop of R1123/R32 (40/60 mass%) flow in horizontal microfin tubes during condensation and evaporation
In this study, the heat transfer coefficient (HTC) and pressure drop of the new low global warming potential refrigerant mixture R1123/R32 (40/60 mass%) in a 6.0 mm OD horizontal microfin tube during condensation at 40 °C and evaporation at 10 °C are experimentally quantified. The data are then compared to the component R32. Both the condensation HTC and pressure drop of R1123/R32 (40/60 mass%) are somewhat lower than those of R32. Similarly, the pressure drop of R1123/R32 during the evaporation process at 10 °C is somewhat lower than that of R32. However, the evaporation HTC is comparable to that of R32. The lower surface tension of R1123/R32 can enhance the nucleate boiling and compensate the heat transfer degradation due to the volatility difference.
Heat transfer and pressure drop of R1123/R32 (40/60 mass%) flow in horizontal microfin tubes during condensation and evaporation
Kondou, Chieko (author)
Science and Technology for the Built Environment ; 25 ; 1281-1291
2019-11-26
11 pages
Article (Journal)
Electronic Resource
English
Single-Phase Heat Transfer and Pressure Drop Characteristics of Microfin Tubes
| British Library Conference Proceedings | 1995
Single-Phase Heat Transfer and Pressure Drop Characteristics of Microfin Tubes
| British Library Online Contents | 1995
| British Library Online Contents | 1998
| British Library Conference Proceedings | 1998