Thermodynamics HW Solutions 600

Thermodynamics HW Solutions 600 - kg/s 0.03273 = ° ⋅ = =...

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Chapter 7 External Forced Convection ( b ) For this in-line arrangement tube bank, the friction coefficient corresponding to Re D = 6806 and S L / D = 5/1.6 = 3.125 is, from Fig. 7-27a, f = 0.20. Also, χ = 1 for the square arrangements. Then the pressure drop across the tube bank becomes Pa 133.9 = = ρ χ = Δ 2 2 3 2 max m/s kg 1 N 1 2 m/s) 647 . 7 )( kg/m 145 . 1 ( ) 1 )( 20 . 0 ( 20 2 V f N P L ( c ) The rate of condensation of steam is
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Unformatted text preview: kg/s 0.03273 = ° ⋅ = = ⎯→ ⎯ = ° ° C kJ/kg 2257 kW 882 . 73 C 100 @ cond C 100 @ cond fg fg h Q m h m Q & & & & Discussion The arithmetic mean fluid temperature is ( T i + T e )/2 = (20 + 43.4)/2 = 31.7 ° C, which is fairly close to the assumed value of 35 ° C. Therefore, there is no need to repeat calculations. 7-55...
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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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