| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 661286 | International Journal of Heat and Mass Transfer | 2007 | 9 Pages |
Abstract
The effect of micro/nanoporous inside surface coated vertical tubes on CHF was determined during water flow boiling at atmospheric pressure. CHF was measured for smooth and three different coated tubes, at mass fluxes (100–300 kg/m2 s) and two inlet subcooling temperatures (50 °C and 75 °C). Greater CHF enhancement was found with microporous coatings than with nanoporous coatings. Al2O3 microporous coatings with particle size <10 μm and coatings thickness of 50 μm showed the best CHF enhancement. Maximum increase in CHF was about 25% for microporous Al2O3. A wettability test was performed to study an increase of CHF with microporous coated surfaces.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Mohammad Sohail Sarwar, Yong Hoon Jeong, Soon Heung Chang,