A steam power plant operates as a reheat rankine cycle

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Reference no: EM13640178

A steam power plant operates as a reheat Rankine cycle. Steam enters the high pressure turbine (isentropic efficiency 90%) at 8 Mpa and 500°C and leaves at 3 MPa. Steam is then reheated at a constant pressure at 500°C before it expands to 20Kpa in the low pressure turbine (isentropic efficieny 90%). The exiting stream from the condenser is saturated liquid. Assume that the heat is being added to the bouler from a high temperature source at 1800k and the condenser is transferring heat to a temperature sink at 300K and the pump is isentropic.

Determine:

a) the total work output by turbines KJ/KG

b) thermal efficiency of the cycle

c) exergy destruction from each heat transfer process in the cycle KJ/KG.

Reference no: EM13640178

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