EFFECTS OF THE PITCH OF IN-LINE DELTA WINGLET VORTEX GENERATORS ON HEAT TRANSFER OF A FINNED THREE-ROW FLAT TUBE BANK

The naphthalene sublimation technique via the heat and mass transfer analogy is used to study the effects of the pitch of in-line delta winglet vortex generators on heat transfer and pressure drop of a finned three-row flat tube bank. The results show that the pitch of the in-line vortex generator h...

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Published in:Experimental heat transfer 2004-01, Vol.17 (1), p.69-90
Main Author: Zhang, Y. H.
Format: Article
Language:English
Subjects:
Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat transfer
Theoretical studies. Data and constants. Metering
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description The naphthalene sublimation technique via the heat and mass transfer analogy is used to study the effects of the pitch of in-line delta winglet vortex generators on heat transfer and pressure drop of a finned three-row flat tube bank. The results show that the pitch of the in-line vortex generator has a strong effect on the heat transfer performance. The optimal pitch depends on the performance evaluation criteria. With the configurations considered in this article, for identical pumping power or combined constraint, a small pitch of 0.33 is best; for the identical pressure drop constraint, a value of 0.42 is best.
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subjects Applied sciences
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat transfer
Theoretical studies. Data and constants. Metering
title EFFECTS OF THE PITCH OF IN-LINE DELTA WINGLET VORTEX GENERATORS ON HEAT TRANSFER OF A FINNED THREE-ROW FLAT TUBE BANK
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