Posted inHeat & Mass Transfer COMBINED NATURAL AND FORCED CONVECTION Posted by admin September 15, 2021 1) Whether the convection is force or natural is found out by finding out the ratio…
Posted inHeat & Mass Transfer NATURAL CONVECTION OVER SURFACES Posted by admin September 15, 2021 1) Natural convection heat transfer on a surface depends on a) Geometry of the surface b) Orientation of…
Posted inHeat & Mass Transfer PHYSICAL MECHANISM OF NATURAL CONVECTION Posted by admin September 15, 2021 1) a) In the absence of other forces, the net vertical force acting on a body…
Posted inHeat & Mass Transfer ONE-DIMENSIONAL TRANSIENT CONDUCTION PROBLEM Posted by admin September 15, 2021 1) b) Boundary conditions: c) Initial condition: d) Solution: 2) Dimensionless heat transfer coefficient 3) Dimensionless time also denoted by τ…
Posted inHeat & Mass Transfer LUMPED SYSTEM ANALYSIS Posted by admin September 15, 2021 3) Criteria for Lumped System Analysis a) Characteristic length b) Biot Number Bi c) When a solid body is being heated…
Posted inHeat & Mass Transfer FIN EQUATION Posted by admin September 15, 2021 1) Assumptions a) Steady operation with no heat generation b) Thermal conductivity k of the material to remain constant. c) Convection…
Posted inHeat & Mass Transfer HEAT TRANSFER FROM FINNED SURFACES Posted by admin September 15, 2021 1) The rate of heat transfer from a surface at a temperature to the surrounding medium at is…
Posted inHeat & Mass Transfer CRITICAL RADIUS OF INSULATION Posted by admin September 15, 2021 CylinderSphere
Posted inHeat & Mass Transfer HEAT CONDUCTION IN CYLINDERS AND SPHERES Posted by admin September 15, 2021 CylindersSpheres CylinderSphere
Posted inHeat & Mass Transfer THERMAL CONTACT RESISTANCE Posted by admin September 15, 2021 1) Reducing Thermal Contact resistance a) The thermal contact resistance can be minimized by applying thermally conducting…