Thermodynamics HW Solutions 605

Thermodynamics HW - max m/s kg 1 N 1 2 m/s 571 8 kg/m 316 1 1 27 30 2 V f N P L Discussion The arithmetic mean fluid temperature is T i T e/2

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Chapter 7 External Forced Convection For this square in-line tube bank, the friction coefficient corresponding to Re D = 5294 and S L / D = 1.5/0.8 = 1.875 is, from Fig. 7-27a, f = 0.27. Also, χ = 1 for the square arrangements. Then the pressure drop across the tube bank becomes Pa 391.6 = = ρ χ = Δ 2 2 3 2
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Unformatted text preview: max m/s kg 1 N 1 2 m/s) 571 . 8 )( kg/m 316 . 1 ( ) 1 )( 27 . ( 30 2 V f N P L Discussion The arithmetic mean fluid temperature is ( T i + T e )/2 = (0 -15.6)/2 = -7.8 ° C, which is fairly close to the assumed value of -5 ° C. Therefore, there is no need to repeat calculations. 7-60...
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This note was uploaded on 01/22/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.

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