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contributor authorL. C. Witte
contributor authorN. Shamsundar
date accessioned2017-05-08T23:15:38Z
date available2017-05-08T23:15:38Z
date copyrightJanuary, 1983
date issued1983
identifier issn1528-8919
identifier otherJETPEZ-26779#199_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/97146
description abstractA thermodynamic efficiency based on the second law of thermodynamics is defined for heat exchange devices. The efficiency can be simply written in terms of the mean absolute temperatures of the two fluids exchanging heat, and the appropriate environment temperature. It is also shown that for a given ratio of hot to cold inlet temperatures, the efficiency and effectiveness for particular heat exchange configurations are related. This efficiency is compared to second-law efficiencies proposed by other authors, and is shown to be superior in its ability to predict the effect of heat exchanger parameter changes upon the efficiency of energy use. The concept is applied to typical heat exchange cases to demonstrate its usefulness and sensitivity.
publisherThe American Society of Mechanical Engineers (ASME)
titleA Thermodynamic Efficiency Concept for Heat Exchange Devices
typeJournal Paper
journal volume105
journal issue1
journal titleJournal of Engineering for Gas Turbines and Power
identifier doi10.1115/1.3227388
journal fristpage199
journal lastpage203
identifier eissn0742-4795
keywordsHeat
keywordsTemperature
keywordsFluids
keywordsSecond law of thermodynamics
keywordsHeat exchangers AND Energy consumption
treeJournal of Engineering for Gas Turbines and Power:;1983:;volume( 105 ):;issue: 001
contenttypeFulltext


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