Show simple item record

dc.contributor.authorDahariya, Smreeti
dc.contributor.authorPai, Athul J.
dc.contributor.authorHwang, Gisuk
dc.contributor.authorBetz, Amy
dc.identifier.citationDahariya, Smreeti; Pai, Athul J.; Hwang, Gisuk; Betz, Amy. 2019. Pool boiling heat transfer enhancement using sintered particle wick structure. 4th Thermal and Fluids Engineering Conference, TFEC 2019, pp 1269-1278en_US
dc.descriptionClick on the URI link to access the article (may not be free).en_US
dc.description.abstractThere is a high need of two-phase cooling technology for a high heat with a small thermal resistance in various applications including energy, space, and electronic systems. A pool boiling is a simple, efficient, and reliable cooling approach, but a main technical challenge lies in poor Heat Transfer Coefficient (HTC) and limited Critical Heat Flux (CHF) due to excessive vapor in the heated surface at high heat flux. To address this challenge, we perform pool-boiling heat transfer enhancement using sintered particle wick structures consisted of 1 to 3 layers of 200 µm copper particles, to minimize the excessive vapor coverage by capillary-driven liquid supply to the heated surface. The HTC and CHF for the wick structures are measured using water at ambient pressure. Enhancements in the Heat Transfer Coefficient and CHF are found primarily due to a high rate of bubble generation from the sintered wick surface, thermal-hydraulic length modulation and high bubble release frequency. We also found that the gravity/capillary imbibition in the wick structures is important on the liquid supply to the heated surface from the droplet size dependent wettability test, and this may contribute to the HTC and CHF enhancement in wick structure.en_US
dc.description.sponsorshipNASA Cooperative Agreement Notice, Grant Number 80NSSC18M0030, the United States of America.en_US
dc.publisherBegell House Inc.en_US
dc.relation.ispartofseries4th Thermal and Fluids Engineering Conference, TFEC 2019;2019
dc.subjectThermal hydraulic length scaleen_US
dc.subjectWick structureen_US
dc.subjectHeat transfer enhancementen_US
dc.subjectCapillary forceen_US
dc.subjectPool boilingen_US
dc.titlePool boiling heat transfer enhancement using sintered particle wick structureen_US
dc.typeConference paperen_US
dc.rights.holder© 2019 Begell House Inc.en_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record