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Improving heat transfer efficiency of shell and tube evaporators of marine refrigerating installations

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Author(s): Bukin Vladimir Grigorievich | Ho Viet Hung

Journal: Vestnik of Astrakhan State Technical University. Series: Marine Engineering and Technologies
ISSN 2073-1574

Issue: 1;
Start page: 90;
Date: 2013;
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Keywords: marine refrigerating installations | heat transfer | boiling | refrigerant | evaporator.

ABSTRACT
The results of investigations to determine the heat transfer of refrigerant R410A in shell and tube evaporators of marine refrigerating installations are presented. The effect of surface configuration and oil concentration on the nucleate boiling on heat transfer coefficients of different surfaces is investigated. The results of the study allow making a conclusion that the use of tubes with the developed surface geometry provides increase in heat transfer coefficient. It is advisable to replace the standard fins tubes of marine flooded shell and tube evaporator with tubes with enhanced surfaces.
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