Determine the flow rate of steam through the turbine

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Reference no: EM131156520

Problem 6.14:

A steam turbine generates 800 kW of work by expanding steam from 50 bar, 400 °C to 1 bar. At the exit of the turbine the steam contains 2% moisture.

a) Determine the flow rate of steam through the turbine.

b) Determine the efficiency.

c) Determine the rate of entropy generation in kJ/K s.

Problem 6.15:

Methane passes through a compressor and is subsequently cooled in a heat exchanger. Methane enters the compressor at 1 bar, 20 °C with volumetric flow rate 30 ft3/min; it exits the heat exchanger at 10 bar, 20 °C.

The compressor efficiency is 80%. Assuming methane to be in the ideal-gas state with

J/mol K, do the following:

a) Calculate the work in the compressor (in J/s)

b) Calculate the required heat in the heat exchanger.

c) Calculate the entropy generation.

Reference no: EM131156520

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