Solved: An isentropic steam turbine processes 2 kg/s of

Chapter 7, Problem 749

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QUESTION:

An isentropic steam turbine processes 2 kg/s of steam at 3 MPa, which is exhausted at 50 kPa and 1008C. 5 percent of this flow is diverted for feedwater heating at 500 kPa. Determine the power produced by this turbine, in kW.

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QUESTION:

An isentropic steam turbine processes 2 kg/s of steam at 3 MPa, which is exhausted at 50 kPa and 1008C. 5 percent of this flow is diverted for feedwater heating at 500 kPa. Determine the power produced by this turbine, in kW.

ANSWER:

Step 1 of 6

Steam is expanded in an isentropic turbine. The work produced is to be determined.

Refer to the $$T-s$$ diagram below.

Assumptions are

1. This is a steady-flow process since there is no change with time.

2. The process is isentropic (i.e., reversible-adiabatic).

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