Boiling of HFE-7100 on straight pin fin
Resource
Experimental Thermal and Fluid Science 22 (3-4): 197-201
Journal
Experimental Thermal and Fluid Science
Journal Issue
22
Pages
197-201
Date Issued
2000
Date
2000
Author(s)
Abstract
This paper, for the first time, experimentally elucidated pin fin boiling characteristics of saturated and subcooled HFE-7100, a chlorofluorocarbon (CFC)-substitute, under atmospheric pressure. Fin base temperature and heat flux data are, for the first time, measured along with the fin tip temperature. For a given liquid/fin combination there exist upper steady-state (USS) branch, lower steady-state (LSS) branch, and a large, unstable regime located in between the two branches. Zones with different stability characteristics are mapped according to boiling on fins with different aspect ratios. Liquid subcooling enhances heat transfer performance and boiling stability. Calculation of the boiling curve qualitatively describes the experimental results. (C) 2000 Elsevier Science Inc. All rights reserved. This paper, for the first time, experimentally elucidated pin fin boiling characteristics of saturated and subcooled HFE-7100, a chlorofluorocarbon (CFC)-substitute, under atmospheric pressure. Fin base temperature and heat flux data are, for the first time, measured along with the fin tip temperature. For a given liquid/fin combination there exist upper steady-state (USS) branch, lower steady-state (LSS) branch, and a large, unstable regime located in between the two branches. Zones with different stability characteristics are mapped according to boiling on fins with different aspect ratios. Liquid subcooling enhances heat transfer performance and boiling stability. Calculation of the boiling curve qualitatively describes the experimental results.
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Type
journal article
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