Steam is to be condensed on the shell side of a 1-shell-pass and 8-tube-passes condenser, with 50 tubes in each pass, at 90°F (hfg = 1043 Btu/lbm). Cooling water (cp = 1.0 Btu/lbm°F) enters the tubes at 60°F and leaves at 73°F. The tubes are thin-walled and have a diameter of 3/4 inches and length of 5 ft per pass. If the overall heat transfer coefficient is 600 Btu/h ft2°F, determine • the rate of heat transfer
• the rate of condensation of steam, and • the mass flow rate of cold water.