Consider the ideal Rankine cycle and operating conditions specified in Problem 9.1. River water is to be used as the cooling fluid in the steam condenser. The river water is available at 295 K, and the discharge temperature is to be no greater than 5 K above the inlet temperature. The overall heat-transfer coefficient associated with the condenser is 2500 W/m² · K. Assuming primarily counter flow operation, estimate the heat exchange area required for this condenser.

Problem 9.1.

Consider an ideal Rankine cycle operating between 5 kPa and 10 MPa and using H₂O as the working fluid. Steam enters the turbine as saturated  at a flow rate of 8 kg/s.