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...

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 heat transfer to the cooling water circulating in the pipes.The properties of water at the saturation temperature of 40°C are: hfg = 2407 × 10^3J/kg and ρv=0.05 kg/m3. The properties of liquid water at the film temperature: ρl = 994 kg/m3, Cpl =4178 J/kg°C, µl = 0.72 × 10^-3 kg/m.s, kl = 0.623 W/m°C Select one: a. 6758W b. 5758W c. 8758W d. 7758W


Extracted text: 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 heat transfer to the cooling water circulating in the pipes.The properties of water at the saturation temperature of 40°C are: hfg = 2407 × 10^3J/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, µl = 0.72 × 10^-3 kg/ m.s, kl = 0.623 W/m°C Select one: a. 6758W b. 5758W c. 8758W d. 7758W 5/8