A parametric study of nucleate boiling on structured surfaces, part ii: Effect of pore diameter and pore pitch

Liang Han Chien; R. L. Webb

doi:10.1115/1.2825889

A parametric study of nucleate boiling on structured surfaces, part ii: Effect of pore diameter and pore pitch

Liang Han Chien
, R. L. Webb

Chang Gung University
Pennsylvania State University

Research output: Contribution to journal › Journal Article › peer-review

56 Scopus citations

Abstract

This two-part experimental work identifies the effect of geometric dimensions on the boiling performance of "tunneled" enhanced boiling surfaces. The surface is formed on an integral-fin tube having a copper foil wrapped over the fin tips. Pores of known diameter and pitch are pierced in the foil cover. Tests were performed on a 19.1- mm diameter horizontal tube using R-11 and R-123 at 26.7° C for heat fluxes from 2 to 70 kW/m². The first part of the study defines the effect of the tunnel dimensions. The data show that greater tunnel height and smaller tunnel pitch are preferred. Sharp tunnel corners provides greater enhancement.

Original language	English
Pages (from-to)	1049-1054
Number of pages	6
Journal	Journal of Heat Transfer
Volume	120
Issue number	4
DOIs	https://doi.org/10.1115/1.2825889
State	Published - 11 1998
Externally published	Yes

Keywords

Boiling
Enhancement
Experimental
Heat transfer

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10.1115/1.2825889

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keywords = "Boiling, Enhancement, Experimental, Heat transfer",

author = "Chien, \{Liang Han\} and Webb, \{R. L.\}",

year = "1998",

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Y1 - 1998/11

N2 - This two-part experimental work identifies the effect of geometric dimensions on the boiling performance of "tunneled" enhanced boiling surfaces. The surface is formed on an integral-fin tube having a copper foil wrapped over the fin tips. Pores of known diameter and pitch are pierced in the foil cover. Tests were performed on a 19.1- mm diameter horizontal tube using R-11 and R-123 at 26.7° C for heat fluxes from 2 to 70 kW/m2. The first part of the study defines the effect of the tunnel dimensions. The data show that greater tunnel height and smaller tunnel pitch are preferred. Sharp tunnel corners provides greater enhancement.

AB - This two-part experimental work identifies the effect of geometric dimensions on the boiling performance of "tunneled" enhanced boiling surfaces. The surface is formed on an integral-fin tube having a copper foil wrapped over the fin tips. Pores of known diameter and pitch are pierced in the foil cover. Tests were performed on a 19.1- mm diameter horizontal tube using R-11 and R-123 at 26.7° C for heat fluxes from 2 to 70 kW/m2. The first part of the study defines the effect of the tunnel dimensions. The data show that greater tunnel height and smaller tunnel pitch are preferred. Sharp tunnel corners provides greater enhancement.

KW - Boiling

KW - Enhancement

KW - Experimental

KW - Heat transfer

UR - https://www.scopus.com/pages/publications/0032216425

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JO - Journal of Heat Transfer

JF - Journal of Heat Transfer

IS - 4

ER -

A parametric study of nucleate boiling on structured surfaces, part ii: Effect of pore diameter and pore pitch

Abstract

Keywords

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