Cylindrical thermal contact conductance

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Title: Cylindrical thermal contact conductance
Author: Ayers, George Harold
Abstract: Thermal contact conductance is highly important in a wide variety of applications , from the cooling of electronic chips to the thermal management of spacecraft . The demand for increased efficiency means that components need to withstand higher temperatures and heat transfer rates . Many situations call for contact heat transfer through nominally cylindrical interfaces , yet relatively few studies of contact conductance through cylindrical interfaces have been undertaken . This study presents a review of the experimental and theoretical investigations of the heat transfer characteristics of composite cylinders , presenting data available in open literature in comparison with relevant correlations . The present investigation presents a study of the thermal contact conductance of cylindrical interfaces . The experimental investigation of sixteen different material combinations offers an opportunity to develop predictive correlations of the contact conductance , in conjunction with an analysis of the interface pressure as a function of the thermal state of the individual cylindrical shells . Experimental results of the present study are compared with previously published conductance data and conductance models .
URI: http : / /hdl .handle .net /1969 .1 /88
Date: 2004-09-30

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Cylindrical thermal contact conductance. Available electronically from http : / /hdl .handle .net /1969 .1 /88 .

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