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Thermal Sciences 2004. Proceedings of the ASME - ZSIS International Thermal Science Seminar II
June, 13-16, 2004, Bled, Slovenia

DOI: 10.1615/ICHMT.2004.IntThermSciSemin


ISBN Print: 978-9-61913-930-1

Enhanced pool boiling CHF in FC-72 from modulated porous layer coating

pages 673-678
DOI: 10.1615/ICHMT.2004.IntThermSciSemin.830
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SINOPSIS

A modulated porous layer coating is effective in enhancing nucleate boiling. A modulated porous layer coating, which is defined as periodically non-uniform thickness, was made from 200 μm and 50 μm copper particles sintered to form cons with 1 mm height at 1 mm distances of 0.5 mm. With respect to plain copper surface, the critical heat flux at saturated pool boiling in FC-72 with the use of modulated porous layer coatings at cluster cone height of 0.5 mm was greater by a factor of 1.3, and at a height of 1 mm it was greater by a factor of 2.3.

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