Rework given Problem for an engine without a condenser, with the steam exhausting directly into the atmosphere at 14.7 psia. Determine the Carnot and isentropic Rankine cycle thermal efficiencies and their percent decrease due to the removal of the condenser. Assume the cycles are still closed loop.

Problem :

Show that the Carnot and isentropic Rankine cycle thermal efficiencies for an engine whose boiler produces dry saturated steam at 100. psia and whose condenser operates at 1.00 psia are 29.7% and 26.1%, respectively. Draw the appropriate T-s and p-v diagrams for these cycles.