Compact Tube and Plate-Finned Heat Exchangers

A highly effective method for heat transfer enhancement in tube and plate-finned heat exchangers through artificial flow turbulization is proposed. Heat transfer surfaces of different design and their production are developed. A correlation for the increase in heat transfer is found as a function of...

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Bibliographic Details
Published in:Heat transfer engineering 1985-01, Vol.6 (1), p.44-51
Main Authors: KALININ, ELWIN KONSTANTINOVICH, DREITSER, GENRIKH ALEKSANDROVICH, DUBROVSKY, EUGENII VLADIMIROVICH
Format: Article
Language:English
Subjects:
channels
flow
heat exchangers
surface properties
tubes
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Summary:A highly effective method for heat transfer enhancement in tube and plate-finned heat exchangers through artificial flow turbulization is proposed. Heat transfer surfaces of different design and their production are developed. A correlation for the increase in heat transfer is found as a function of increasing hydraulic resistance for channels of various cross sections. Results are compared with similar smooth channels with discrete wall flow turbulization. The use of the proposed surfaces allows a 1.5- to 2-fold decrease in the heat exchanger volume, a 3- to 8-fold increase in film boiling heat transfer, a 1.4-fold increase in surface boiling heat transfer, and a 2- to 3.4-fold increase in condensation heat transfer on the outer surfaces of annular grooved tubes as well as a decrease in the salt deposition on the outer and inner surfaces of tubes.
ISSN:0145-7632
1521-0537
DOI:10.1080/01457638508939618