Performance evaluation of tubular aluminum foam heat exchangers in single row arrays

Chumpia, A. and Hooman, K. (2015) Performance evaluation of tubular aluminum foam heat exchangers in single row arrays. Applied Thermal Engineering, 83 121-130. doi:10.1016/j.applthermaleng.2015.03.015

Author Chumpia, A.
Hooman, K.
Title Performance evaluation of tubular aluminum foam heat exchangers in single row arrays
Journal name Applied Thermal Engineering   Check publisher's open access policy
ISSN 1359-4311
Publication date 2015-05-25
Year available 2015
Sub-type Article (original research)
DOI 10.1016/j.applthermaleng.2015.03.015
Open Access Status Not Open Access
Volume 83
Start page 121
End page 130
Total pages 10
Place of publication Kidlington, Oxford, United Kingdom
Publisher Elsevier
Language eng
Subject 2102 Energy Engineering and Power Technology
2209 Industrial and Manufacturing Engineering
Abstract Two sets of three tubular heat exchangers, constructed by wrapping aluminum foam of different thickness around cylindrical tubes, are being tested for heat transfer performance and pressure drop characteristics. Each set of heat exchangers is mounted such that it forms an array of a single, vertical row inside a low airflow wind tunnel. The tests are carried out under cross-flowing air velocity between 0.5 and 5.0 m/s at 0.5 m/s interval. The effects of foam thickness and transversal pitch distance are discussed and thermo-hydraulic results are benchmarking against those of a conventional finned tube array. It is found that within the designated range of airflow and the same level of compactness, the heat exchanger array with thicker foam layer enhances heat transfer 1.5 to 1.8 times compared with the one having thinner foam. In an array with fixed foam thickness, heat transfer improves at narrower pitches. At a discussion of the results, two empirical correlations to predict friction factor and thermal resistance are presented.
Keyword Condensers
Cooling towers
Heat exchangers
Metal foams
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2016 Collection
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Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 8 times in Scopus Article | Citations
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