Effects of Surface Coating on Nucleate Boiling Heat Transfer from a Downward Facing Surface

M. B. Dizon, J. Yang, F. B. Cheung, J. L. Rempe, K. Y. Suh, S. B. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

26 Scopus citations


As part of a joint U.S.-Korean International Nuclear Engineering Research Initiative investigating methods to enhance external reactor vessel cooling (ERVC) under severe accident conditions, it was proposed that surface coating be used to facilitate the process of downward-facing boiling. Toward this end, metallic micro-porous layer coatings were selected and different compositions of the coating material were evaluated to obtain a mixture with desirable qualities. Durability and adhesion tests were also done to study the performance of each of the resulting coatings. Quenching of the candidate coatings were then conducted under downward facing boiling conditions using hemispherical test vessels to obtain the local boiling curves. Compared to the case of plain vessel surface under identical experimental conditions, considerable enhancement was observed in nucleate boiling heat transfer and the critical heat flux (CHF) for the case with surface coatings. Optical and SEM (Scanning Electron Microscope) photos showed that the candidate coating possessed the desired porous microstructure with interconnecting channels and pores, leading to appreciable increases in the boiling heat transfer and the local CHF limits.

Original languageEnglish (US)
Title of host publicationProceedings of the 2003 ASME Summer Heat Transfer Conference, Volume 2
PublisherAmerican Society of Mechanical Engineers
Number of pages9
ISBN (Print)0791836940, 9780791836941
StatePublished - 2003
Event2003 ASME Summer Heat Transfer Conference (HT2003) - Las Vegas, NV, United States
Duration: Jul 21 2003Jul 23 2003

Publication series

NameProceedings of the ASME Summer Heat Transfer Conference


Other2003 ASME Summer Heat Transfer Conference (HT2003)
Country/TerritoryUnited States
CityLas Vegas, NV

All Science Journal Classification (ASJC) codes

  • General Engineering


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