problem4S.7 - PROBLEM 4S.7 KNOWN Hollow prismatic bars...

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PROBLEM 4S.7 KNOWN: Hollow prismatic bars fabricated from plain carbon steel, 1m in length with rescribed temperature difference. p F IND: Shape factors and heat rate per unit length. SCHEMATIC: ASSUMPTIONS: (1) Steady-state conditions, (2) Two-dimensional conduction, (3) onstant properties. C P ROPERTIES: Table A-1 , Steel, Plain Carbon (400K), k = 57 W/m K. ANALYSIS: Construct a flux plot on the symmetrical sections (shaded-regions) of each of he bars. t T he shape factors for the symmetrical sections are,
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