Experimental investigation of heat transfer effectiveness on finned-tube thermoacoustic heat exchanger

Wasan Kamsanam, Xiaoan Mao, Artur J. Jaworski

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Heat exchangers are some of the most important parts in thermoacoustic devices. In an oscillatory flow condition, the flow and temperature fields around the heat exchangers can be quite complex and it may significantly affect their heat transfer behaviour. As a result, one cannot directly apply the heat transfer correlations for a steady flow to the design of heat exchangers operating in oscillatory flow conditions. However, the fundamental knowledge of heat transfer in oscillatory flow is still not well established. The aim of the current work is to establish the heat transfer correlation for a few selected finned-tube heat exchangers, by measuring the heat transfer from the heat exchangers to the oscillatory flow in a range of operating conditions. Among the main parameters considered are fin spacing, fin length, thermal penetration depth, and gas displacement amplitude, and their effect on the thermal performance of heat exchangers. The results are presented in term of heat transfer effectiveness, which is the ratio of actual heat transfer rate to the maximum possible heat transfer rate. The correlations are proposed between the heat transfer effectiveness and the ratios of the fin length to the displacement amplitude and the fin spacing to the thermal penetration depth. The uncertainties associated with all the measurement data are also considered.

Original languageEnglish
Title of host publicationProceedings of the World Congress on Engineering 2013, WCE 2013
Number of pages6
Volume3 LNECS
Publication statusPublished - 25 Nov 2013
Externally publishedYes
EventInternational Association of Engineers World Congress on Engineering - Imperial College London, London, United Kingdom
Duration: 3 Jul 20135 Jul 2013
http://www.iaeng.org/WCE2013/ICAEM2013.html (Link to Conference Details )


ConferenceInternational Association of Engineers World Congress on Engineering
Abbreviated titleWCE 2013
Country/TerritoryUnited Kingdom
Internet address


Dive into the research topics of 'Experimental investigation of heat transfer effectiveness on finned-tube thermoacoustic heat exchanger'. Together they form a unique fingerprint.

Cite this