Analyzing Rankine Cycles
Steam enters the turbine of a vapor power plant at 600 lbf/in.2, 1000oF and exits as a two-phase liquid–vapor mixture at temperature T. Condensate exits the condenser at a temperature 5oF lower than T and is pumped to 600 lbf/in.2 The turbine and pump isentropic efficiencies are 90 and 80%, respectively. The net power developed is 1 MW.
(a) For T = 80oF, determine the steam quality at the turbine exit, the steam mass flow rate, in lb/h, and the thermal efficiency.
(b) Plot the quantities of part (a) versus T ranging from 80 to 105oF.
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