The effect of surface roughness on the pool boiling of water is studied. Five aluminum surfaces of varying roughness were prepared: one polished (0.062 μm RMS) and four roughened by electrical discharge machining (EDM) with surface roughness of 1.37, 2.81, 7.37, and 12.53 μm RMS. All experiments were performed in water at atmospheric pressure and saturation temperature. The roughest EDM surface showed up to a 100% improvement in the heat transfer coefficient compared to the polished surface. The other EDM surfaces (1.37, 2.81, and 7.37 μm) showed up to a 60% enhancement in the heat transfer coefficient compared to the polished surface. Constants are proposed for prediction of pool boiling in water from the polished and rough aluminum surfaces studied using the Rohsenow pool boiling correlation.
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ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference
July 8–12, 2007
Vancouver, British Columbia, Canada
Conference Sponsors:
- Heat Transfer Division
ISBN:
0-7918-4275-4
PROCEEDINGS PAPER
Effects of Surface Roughness on the Pool Boiling of Water
Benjamin J. Jones,
Benjamin J. Jones
Purdue University, West Lafayette, IN
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Suresh V. Garimella
Suresh V. Garimella
Purdue University, West Lafayette, IN
Search for other works by this author on:
Benjamin J. Jones
Purdue University, West Lafayette, IN
Suresh V. Garimella
Purdue University, West Lafayette, IN
Paper No:
HT2007-32230, pp. 219-227; 9 pages
Published Online:
August 24, 2009
Citation
Jones, BJ, & Garimella, SV. "Effects of Surface Roughness on the Pool Boiling of Water." Proceedings of the ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 2. Vancouver, British Columbia, Canada. July 8–12, 2007. pp. 219-227. ASME. https://doi.org/10.1115/HT2007-32230
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