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김규완,Nguyen Ba Chien,최광일,오종택 대한기계학회 2014 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.28 No.10
We report experimental data of boiling heat transfer of R-1234yf in horizontal small tubes. The experimental data obtained in the horizontalcircular small tubes of 1.5 and 3.0 mm inner diameter, the lengths of 1000 and 2000 mm, the mass flux range from 200 - 650kg/m2s, the heat flux range from 5-40 kW/m2 and saturation temperature of 10 and 15ºC, was used to develop a modified correlation forthe heat transfer coefficient. The flow pattern of the experimental data was mapped and analyzed with existing flow pattern maps. Theheat transfer coefficient was also compared with some well-known correlations.