Steam is generated in the boiler of a cogeneration plant at 600 psia and 800°F at a rate of 18 lbm/s the plant is to produce power while meeting the process steam requirements for a certain industrial application. One-third of the steam leaving the boiler is throttled to a pressure of 120 psia and is routed to the process heater. The rest of the steam is expanded in an isentropic turbine to a pressure of 120 psia and is also routed to the process heater. Steam leaves the process heater at 240°F. Neglecting the pump work, determine
(a) The net power produced,
(b) The rate of process heat supply, and
(c) The utilization factor of this plant.