2. Single Flash: Water reaches the wellhead of a single flash geothermal plant at 3.0 MPa, 220°C, and 14.7 kg/s. The water is flashed to 1200 kPa. The vapor portion goes through a turbine in an isentropic efficiency of 84% and the condenser pressure is 15 kPa. Both pumps has efficiency of 63% and the injection well pressure is 4.5 MPa. Determine: a. The power produced by the turbine, in kW. b. The total pump power input, in kW. c. The rate of heat input in the earth or "boiler," in kW d. The overall efficiency
2. Single Flash: Water reaches the wellhead of a single flash geothermal plant at 3.0 MPa, 220°C, and 14.7 kg/s. The water is flashed to 1200 kPa. The vapor portion goes through a turbine in an isentropic efficiency of 84% and the condenser pressure is 15 kPa. Both pumps has efficiency of 63% and the injection well pressure is 4.5 MPa. Determine: a. The power produced by the turbine, in kW. b. The total pump power input, in kW. c. The rate of heat input in the earth or "boiler," in kW d. The overall efficiency
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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![2. Single Flash: Water reaches the wellhead of a single flash geothermal plant at 3.0 MPa, 220°C,
and 14.7 kg/s. The water is flashed to 1200 kPa. The vapor portion goes through a turbine in an
isentropic efficiency of 84% and the condenser pressure is 15 kPa. Both pumps has efficiency of
63% and the injection well pressure is 4.5 MPa. Determine:
a. The power produced by the turbine, in kW.
b. The total pump power input, in kW.
c. The rate of heat input in the earth or "boiler," in kW
d.
The overall efficiency](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb1e18c31-2398-4722-a519-21664cd5f7be%2Fc203f325-786f-4f9c-b032-1d657995c26d%2F1b1o30o_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. Single Flash: Water reaches the wellhead of a single flash geothermal plant at 3.0 MPa, 220°C,
and 14.7 kg/s. The water is flashed to 1200 kPa. The vapor portion goes through a turbine in an
isentropic efficiency of 84% and the condenser pressure is 15 kPa. Both pumps has efficiency of
63% and the injection well pressure is 4.5 MPa. Determine:
a. The power produced by the turbine, in kW.
b. The total pump power input, in kW.
c. The rate of heat input in the earth or "boiler," in kW
d.
The overall efficiency
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