Question: 1. Consider two cases: Case 1: Vertical plate (0.9 m high; 0.5 m wide at 32C with air at 22C). Case 2: Vertical plate (0.5
1. Consider two cases: Case 1: Vertical plate (0.9 m high; 0.5 m wide at 32C with air at 22C). Case 2: Vertical plate (0.5 m high; 0.9 m wide at 22C with air at 32C). Which case gives the higher rate of heat transfer? 1. = 1.983 x lokg/m sec, P-1.177 kg/m cp = 1.0057 kJ/kg C k-0.02624 W/mC Given: CONVECTION HEAT TRANSFER Forced Natural(Free) Tubes(cylinders) Horizontal Cylinders Horizonta! Cylinders 10010000 (turbulent) Nu.023[Re)" (Pr) n=0.4 for heating n=0.3 for cooling Vertical Surfaces(cylinder, flat plates) Horizontal Flat Surface 10*cGr Pr_10 Laminar flow) 10 Gr Pr10"(turbulent flow) Ro 400000 (turbulent flow) Nu =0.129(Gr Pr 10:33 Nu -0.14(Gr Pr]0.3 Nu =0.036 P4.43 Res -18700) Re
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