A dry-steam well is characterized by a closed-in pressure of P1 2500 kPa and saturated vapor. The wellhead valve is set at P2 1000 kPa, at which condition the well flows 25.2 kg/s. You may assume the turbine is adiabatic and has a constant isentropic efficiency of 3. 75%. (a) Calculate the power in MW that the turbine will generate under the following two cases: (i) there is no condenser and the turbine exhausts to the atmosphere at 1 atm and (ii) there is a condenser that has a pressure of 13.5 kPa. (b) Calculate the utilization efficiency in both cases, based on the closed-in condition of the geofluid. Take atmospheric conditions at 25°C and 1 atm.

A dry-steam well is characterized by a closed-in pressure of P1 2500 kPa and saturated vapor. The wellhead valve is set at P2 1000 kPa, at which condition the well flows 25.2 kg/s. You may assume the turbine is adiabatic and has a constant isentropic efficiency of 3. 75%. (a) Calculate the power in MW that the turbine will generate under the following two cases: (i) there is no condenser and the turbine exhausts to the atmosphere at 1 atm and (ii) there is a condenser that has a pressure of 13.5 kPa. (b) Calculate the utilization efficiency in both cases, based on the closed-in condition of the geofluid. Take atmospheric conditions at 25°C and 1 atm.

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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Question

A dry-steam well is characterized by a closed-in pressure of P1 2500 kPa and
saturated vapor. The wellhead valve is set at P2 1000 kPa, at which condition the well flows
25.2 kg/s. You may assume the turbine is adiabatic and has a constant isentropic efficiency of
3.
75%.
(a) Calculate the power in MW that the turbine will generate under the following two
cases: (i) there is no condenser and the turbine exhausts to the atmosphere at 1 atm
and (ii) there is a condenser that has a pressure of 13.5 kPa.
(b) Calculate the utilization efficiency in both cases, based on the closed-in condition of
the geofluid.
Take atmospheric conditions at 25°C and 1 atm.

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