Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10392203 | Experimental Thermal and Fluid Science | 2005 | 6 Pages |
Abstract
Subcooled flow boiling of water was tested for a large heating surface of 5 cm length and 2 cm width in a horizontal rectangular channel of 5 mm height and 24 mm width. Microbubble emission boiling occurred in transition boiling at 40 K of liquid subcooling and 0.5 m/s of liquid velocity and the maximum heat flux was higher than the ordinary critical heat flux. Maximum heat flux obtained was 5 MW/m2. In subcooled pool boiling of alcohol-water mixtures, critical heat fluxes were higher than that of water, especially, polyhydric alcohol-water mixtures such as 1-butanol and 2-propanol showed about 50% higher critical heat fluxes than water. In the subcooled flow boiling with small heating surface of 10 mm Ã 10 mm, microbubble emission boiling occurred in transition boiling and the maximum heat fluxes were 10% higher than the water.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Koichi Suzuki, Toshiyuki Kokubu, Masaki Nakano, Hiroshi Kawamura, Ichiro Ueno, Hiroya Shida, Osamu Ogawa,