A shell and tube steam condenser is to be constructed of 2.5 cm O.D., 2.2 cm I.D., single pass horizontal tubes with steam condensing at 54°C on the outside of the tubes. The cooling water enters at...

Extracted text: A shell and tube steam condenser is to be constructed of 2.5 cm O.D., 2.2 cm I.D., single pass horizontal tubes with steam condensing at 54°C on the outside of the tubes. The cooling water enters at 20°C and leaves at 36°C at a flow rate of 1 kg/sec. The heat transfer coefficient for the condensation of steam is 7900 W/(m².°C). Calculate the tube length. If the latent heat of condensation is 2454 kJ/kg, calculate the condensation rate per tube. The properties of water are as follows: Specific heat 4180 J/(kg.°C) Viscosity 0.86 x 10-3 kg/(m.sec) Thermal conductivity 0.61 W/(m.°C) · The heat transfer coefficient for turbulent flow in a pipe may be determined by Nu = 0.023 Re0.8 Pr0.4