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THERMAL CONTACT RESISTANCE
1) Reducing Thermal Contact resistance a) The thermal contact resistance can be minimized by applying thermally conducting…
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THE THERMAL RESISTANCE CONCEPT
ConductionConvectionRadiationConsider a plane wall of thickness L and average thermal conductivity k. The two surfaces of the wall…
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STEADY HEAT CONDUCTION IN PLANE WALLS
1) Heat flow through a wall is one dimensional when the temperature of the wall varies…
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BOUNDARY AND INITIAL CONDITIONS
1) The differential equations do not incorporate any information related to the conditions on the surfaces…
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ONE-DIMENSIONAL GENERAL DIFFERENTIAL HEAT CONDUCTION EQUATION IN THE SPHERICAL COORDINATE SYSTEM
Variable thermal conductivityConstant thermal conductivity
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ONE-DIMENSIONAL GENERAL DIFFERENTIAL HEAT CONDUCTION EQUATION IN THE CYLINDRICAL COORDINATE SYSTEM
Variable thermal conductivity Constant thermal conductivity
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ONE-DIMENSIONAL GENERAL DIFFERENTIAL HEAT CONDUCTION EQUATION IN THE RECTANGULAR COORDINATE SYSTEM
Taking the limit as Δx→0 and Δt→0 yields Variable thermal conductivity Constant thermal conductivity
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HEAT GENERATION
1) A medium through which heat is conducted may involve the conversion of electrical, nuclear, or…
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MULTIDIMENSIONAL HEAT TRANSFER
1) Heat transfer problems are also classified as being one-dimensional, two dimensional, or three dimensional, depending…
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INTRODUCTION – HEAT TRANSFER
1) Heat transfer has direction as well as magnitude, and thus it is a vector quantity a) Must specify both…