International Journal of Air-Conditioning and Refrigeration
- Volume 7
- /
- Pages.45-54
- /
- 1999
- /
- 2010-1325(pISSN)
- /
- 2010-1333(eISSN)
Experimental Investigation of R-22 Condensation in Tubes with Small Inner Diameter
- Kim, Nae-Hyun (Department. of Mechanical Engineering, University of Inchon) ;
- Cho, Jin-Pyo (Graduate School, University of Inchon)
- Published : 1999.09.01
Abstract
In this study, condensation heat transfer experiments were conducted in two small diameter (ø17.5, ø4.0) tubes. Comparison with the existing in-tube condensation heat transfer correlations indicated that these correlations over predict the present data. For example, Akers correlation over predicted the data up to 104 %. The condensation heat transfer coefficient of the ø4.0 I.D. tube was smaller than that of the ø7.5 I.D tube; at the mass velocity of 300 kg/