Steam at 40 bar, 500oC flowing at the rate of 5500 kg/h expands in a h.p. turbine to 2 bar with an isentropic efficiency of 83%. A continuous supply of steam at 2 bar, 0.87 quality and a flow rate of 2700 kg/h is available from a geothermal energy source. This steam is mixed adiabatically with the h.p. turbine exhaust steam and the combined flow then expands in a l.p. turbine to 0.1 bar with an isentropic efficiency of 78%. Determine the power output and the thermal efficiency of the plant. Assume that 5500 kg/h of steam is generated in the boiler at 40 bar, 500 oC from the saturated feedwater at 0.1 bar. Had the geothermal steam not been added, what would have been the power output and efficiency of the plant? Neglect the pump work.
Steam at 40 bar, 500oC flowing at the rate of 5500 kg/h expands in a h.p. turbine to 2 bar with an isentropic efficiency of 83%. A continuous supply of steam at 2 bar, 0.87 quality and a flow rate of 2700 kg/h is available from a geothermal energy source. This steam is mixed adiabatically with the h.p. turbine exhaust steam and the combined flow then expands in a l.p. turbine to 0.1 bar with an isentropic efficiency of 78%. Determine the power output and the thermal efficiency of the plant. Assume that 5500 kg/h of steam is generated in the boiler at 40 bar, 500 oC from the saturated feedwater at 0.1 bar. Had the geothermal steam not been added, what would have been the power output and efficiency of the plant? Neglect the pump work.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Steam at 40 bar, 500oC flowing at the rate of 5500 kg/h expands in a h.p. turbine to 2 bar with
an isentropic efficiency of 83%. A continuous supply of steam at 2 bar, 0.87 quality and a flow
rate of 2700 kg/h is available from a geothermal energy source. This steam is mixed adiabatically
with the h.p. turbine exhaust steam and the combined flow then expands in a l.p. turbine to 0.1 bar
with an isentropic efficiency of 78%. Determine the power output and the thermal efficiency of
the plant. Assume that 5500 kg/h of steam is generated in the boiler at 40 bar, 500 oC from the
saturated feedwater at 0.1 bar.
Had the geothermal steam not been added, what would have been the power output and efficiency
of the plant? Neglect the pump work.
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