Evaluation And Effect Of Convective Resistance And Convective Heat Transfer Coefficient On Heat Transfer Rate In Composite Structure

Abstract

Heat is a form of energy in transmits due to temperature difference. Heat transfer is transmission of
energy from one region to another region as a result of temperature difference between them. Whenever there is
temperature difference in medium or within a media, heat transfer must occur. The amount of heat transferred per
unit time is called heat transfer rate. The composite structures are the combination of different materials to form a
single component. These components are used to study of heat transfer through it. The composite structures for heat
transfer are cylindrical shells, spherical shells and plane walls. They have wide range of applications in heat transfer
are cold storage walls, internal combustion engines chambers, steam pipes and, metallic multi wall thermal protection
systems. Heat transfers through the systems are in radial flow and inline flow direction. The heat transfer occurs in
composite structures are conduction, convection and radiation. In this paper, the methodology for evaluation and
study of convective heat transfer coefficient and convective resistance of composite structure. The influence of these
parameters on performance of composite system is analyzed. Heat transfer is increased with decreases in convective
resistance and increases with convective heat transfer coefficient of composite structure obtained.