Electrical power is to be produced from a steam turbine connected to a nuclear reactor. Steam...

Electrical power is to be produced from a steam turbine connected to a nuclear reactor. Steam is obtained from the ractor at 540 K and 36 bar, the turbine exit pressure is 1.0 bar, and the turbine is adiabatic.

a) Compute the maximum work per kilogram of steam that can be obtained from the turbine.

A clever chemical engineer has suggested that the single-stage turbine considered here be replaced by a two-stage adiabatic turbine, and that the steam exiting from the first stage be returned to the reactor and reheated, at constant pressure, to 540 K, and then fed to the second stage of the turbine.

b) Compute the maximum work obtained per kilogram of steam if the two-stage turbine is used and the exhaust pressure of the first stage is 0.5(36 + 1) = 18.5 bar.

c) Compute the maximum work obtained per kilogram of steam if the two-stage turbine is used and the exhaust pressure of the first stage is sqrt(36 x 1) = 6 bar.

d) Compute the heat absorbed per kilogram of steam in the reheating steps

Expert Solution

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