1. Problem Set #12 Heat Exchangers A 20 cm diameter pot is full of boiling water on top of an electric stove. The temperature ofthe bottom inside surface of the pot is 108 C, and the heat transfer coefficient is 8,000 W m2 r'C' pressure) What is the heat transfer rate? (Assume 1 atm atmospheric A condenser consists of 50 tubes that are each 2m long with an outer diameter of 3 cm. The outer surface temperature of the tubes is 20 C, and the heat transfer coefficient is 4,000 W m2 aC (condensation) temperature of 80 C. What is the heat transfer rate? . Assume the condenser is operating at 0.5 atm, with a saturation A micro-brewery is cooling beer wort with a counter-flow heat exchanger. The inlet k I , and the mass kg C flow rate is 1 1(th The other fluid is water, with a specific heat capacity of4.184 kg]? I . , ., mass flow rate of 3 %, an Inlet temperature of 3 C and an outlet temperature of 22 C. What is the outlet temperature of the beer wort? temperature of the beer is 95 C, the specific heat capacity is 4.250 a 4]