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Unformatted text preview: insulation at the left (node 0) and radiation at the right boundary (node 5). The finite difference formulation of the boundary nodes is to be determined. Assumptions 1 Heat transfer through the wall is given to be steady and onedimensional, and the thermal conductivity to be constant. 2 Convection heat transfer is negligible. Analysis Using the energy balance approach and taking the direction of all heat transfers to be towards the node under consideration, the finite difference formulations become Left boundary node: ) 2 / ( 1 = Δ + Δ − x A g x T T kA & Right boundary node: ) 2 / ( ) ( 5 5 4 4 5 4 surr = Δ + Δ − + − x A g x T T kA T T A & εσ Insulated Δ x g ( x ) 1 ε • • • • • 2 3 4 • 5 T surr Radiation 56...
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This note was uploaded on 01/19/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.
 Fall '10
 Dr.DanielArenas
 Thermodynamics, Conductivity, Convection, Mass, Heat

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