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The significance of thermal contact resistance on a bearing steel surface and its application in the analysis of heat flow through layers has been discussed. In the present study, it is considered that the surface roughness and the interface temperature vary to estimate effective thermal conductivity of the bearing model under steady-state and insulated conditions. Surface roughness was considered in the range of 2.37–7.16 μm, and thermal contact properties of the hardened steels were studied under dry and lubricated conditions. These results help to predict temperature distributions of the bearing using SolidWorks2011 (Dassault Systèmes SolidWorks Concord, MA, USA). [ABSTRACT FROM PUBLISHER]

In this article, the experimental setup based on line heat source and plane heat source method has been developed and interconnected with LabVIEW to estimate the effective thermal conductivity of two-phase materials. The effective thermal conductivity of two phase materials at various temperatures is found by line heat source and plane heat source experimental setup. The results obtained by plane heat source method were compared with the results obtained by line heat source method. LabVIEW software is used to interconnect the experimental setup to computer for continuous recording of temperature with respect to time. [ABSTRACT FROM AUTHOR]