fas The condenser of a steam power plant operates at a pressure of 7.38 kPa (Tsat = 40°C). Steam at this pressure condenses on the outer surfaces of horizontal pipes through which cooling water circulates. The outer diameter of the pipes is 3 cm, and the outer surfaces of the pipes are maintained at 30°C. Determine the rate of condensation of steam per unit length of a horizontal pipe. The properties of water at the saturation temperature of 40°c are: hfg 2407 x 10^3/kg and pv=0.05 kg/m3. The properties of liquid water at the film temperature: pl = 994 kg/m3. Cpl =4178 J/kg C, ul = 0.72 x 10^-3 kg/m.s, ki = 0.623 W/m°C Select one: O a. 0.0046 kg/s O b.0.0036 kg/s O c.0.0016 kg/s O d.0.0026 kg/s

fas The condenser of a steam power plant operates at a pressure of 7.38 kPa (Tsat = 40°C). Steam at this pressure condenses on the outer surfaces of horizontal pipes through which cooling water circulates. The outer diameter of the pipes is 3 cm, and the outer surfaces of the pipes are maintained at 30°C. Determine the rate of condensation of steam per unit length of a horizontal pipe. The properties of water at the saturation temperature of 40°c are: hfg 2407 x 10^3/kg and pv=0.05 kg/m3. The properties of liquid water at the film temperature: pl = 994 kg/m3. Cpl =4178 J/kg C, ul = 0.72 x 10^-3 kg/m.s, ki = 0.623 W/m°C Select one: O a. 0.0046 kg/s O b.0.0036 kg/s O c.0.0016 kg/s O d.0.0026 kg/s

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter8: Natural Convection

Section: Chapter Questions

Problem 8.34P

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