problem4-14 - PROBLEM 4.14 KNOWN Tube embedded in the...

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PROBLEM 4.14 K NOWN: Tube embedded in the center plane of a concrete slab. FIND: The shape factor and heat transfer rate per unit length using the appropriate tabulated relation, SCHEMATIC: ASSUMPTIONS: (1) Two-dimensional conduction, (2) Steady-state conditions, (3) Constant roperties, (4) Concrete slab infinitely long in horizontal plane, L >> z. p P ROPERTIES: Table A-3 , Concrete, stone mix (300K): k = 1.4 W/m K. ANALYSIS: If we relax the restriction that z >> D/2, the embedded tube-slab system corresponds to
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