Experimental analysis of heat transfer of supercritical fluids in plate heat exchangers

Forooghi, Pourya and Hooman, Kamel (2014) Experimental analysis of heat transfer of supercritical fluids in plate heat exchangers. International Journal of Heat and Mass Transfer, 74 448-459. doi:10.1016/j.ijheatmasstransfer.2014.03.052


Author Forooghi, Pourya
Hooman, Kamel
Title Experimental analysis of heat transfer of supercritical fluids in plate heat exchangers
Journal name International Journal of Heat and Mass Transfer   Check publisher's open access policy
ISSN 0017-9310
1879-2189
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.ijheatmasstransfer.2014.03.052
Open Access Status
Volume 74
Start page 448
End page 459
Total pages 12
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2015
Language eng
Abstract Heat transfer of a supercritical refrigerant with highly variable properties close to pseudo-critical temperature was experimentally investigated in plate heat exchangers. Two different plate corrugation angles (30° and 60°) were examined while the Reynolds and the Prandtl number range from 800 to 4200 and 3.2 to 4.2, respectively. The results are found to be different from those obtained using classical Dittus-Boelter type correlations. Two possible effects were investigated: effect of wall-to-bulk property ratio and that of buoyancy. The former was found to be important and was accounted for in the correlation using the correction factor proposed by Jackson and Hall. The latter was found not to be significant for corrugation angle of 60°. For corrugation angle of 30°, however, buoyancy effects were found to have some influence, yet majority of the data points are found to be within 15% of those predicted using the correlation.
Keyword Buoyancy
Convection heat transfer
Plate heat exchanger
Properties
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2015 Collection
 
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