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Unformatted text preview: PROBLEM 4.62 KNOWN : Edge of adjoining walls (k = 1 W/m ⋅ K) represented by symmetrical element bounded by the diagonal symmetry adiabat and a section of the wall thickness over which the temperature distribution is assumed to be linear. FIND : (a) Temperature distribution, heat rate and shape factor for the edge using the nodal network with = Δ x = Δ y = 10 mm; compare shape factor result with that from Table 4.1; (b) Assess the validity of ssuming linear temperature distributions across sections at various distances from the edge. a SCHEMATIC : ASSUMPTIONS : (1) Twodimensional, steadystate conduction, (2) Constant properties, and (3) Linear temperature distribution at specified locations across the section. ANALYSIS : (a) Taking advantage of symmetry along the adiabat diagonal, all the nodes may be treated as interior nodes. Across the lefthand boundary, the temperature distribution is specified as linear. The finitedifference equations required to determine the temperature distribution, and hence the heat rate, can...
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This note was uploaded on 12/07/2010 for the course MAE Heat Trans taught by Professor Lee,j.s. during the Spring '10 term at Seoul National.
 Spring '10
 LEE,J.S.
 Heat Transfer

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