Local heat transfer and pressure drop measurements were made during condensation of pure refrigerants CFCll and CFCll3 in the annulus of a double-tube coil consisting of three U-bends and four straight lengths. The inner tube is a 19.1-mm O.D. corrugated tube with wire fins soldered onto the outer s
Condensation of refrigerants R-11 and R-113 in the annuli of horizontal double-tube condensers with an enhanced inner tube
โ Scribed by Hiroshi Honda; Shigeru Nozu; Yoichi Matsuoka; Tohtu Aoyama; Haruo Nakata
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 912 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0894-1777
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๐ SIMILAR VOLUMES
Data are presented for condensation from steam-air and Rll3-air mixtures on a bank of horizontal tubes. The test bank consisted of 10 staggered rows of four and five tubes per row. Good agreement with single-tube theory was found for the top rows when account was taken of the variation in bulk air c
## Abstract This study conducts numerical analyses and experiments on natural convection heat transfer in eccentric horizontal annuli between a heated outer tube and a cooled inner tube with different orientations. The outer tube is an elliptical tube, and the inner tube is a cylindrical tube. Expe