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In: Mechanical Engineering

A Rankine cycle (not an ideal cycle) generates steam (H2O, Water) at 100 bars and 640...

A Rankine cycle (not an ideal cycle) generates steam (H2O, Water) at 100 bars
and 640 oC (state 3) and the turbine-exhaust pressure is 0.08 bar (state 4). The enthalpy value
of the turbine outlet is 2577.0 kJ/kg (state 4). Assuming the state of the inlet of pump is a
saturated liquid and kinetic and potential energy changes are negligible, a pump operates
isentropically and it has a steady state mass flow rate of 23,740 kg/h through it. Determine
a. The temperature of the inlet pump (state 1), in oC,
b. The enthalpy of the inlet pump (state 1), in kJ/kg,
c. The entropy of the inlet pump (state 1), in kJ/(kg*K),
d. The entropy of the inlet boiler (state 2), kJ/(kg*K),
e. The enthalpy of the inlet boiler (state 2), kJ/kg,
f. The temperature of the inlet boiler (state 2), oC,
g. The enthalpy of the inlet turbine (state 3), kJ/kg,
h. The entropy of the inlet turbine (state 3), kJ/(kg*K),
i. The entropy of the inlet condenser (state 4), kJ/(kg*K),
j. The temperature of the inlet condenser (state 4), oC,
k. The adiabatic efficiency of the turbine, in percent, %
l. The power input into the pump, MW,
m. The rate of heat transfer into the working fluid as it passes through the boiler, MW,
n. The power output by the turbine, MW,
o. The rate of heat transfer into the working fluid as it passes through the condenser, MW,
p. The thermal efficiency, %

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Expert Solution

samet mamat answered 2 years ago
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