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Thermodynamics
First Law of Thermodynamics
GATE 2009
Medium

Assume the above turbine (inlet 3 MPa, outlet 70 kPa) to be part of a simple Rankine cycle. The density of water at the inlet to the pump is 1000 kg/m³. Ignoring kinetic and potential energy effects, the specific work (in kJ/kg) supplied to the pump is

  • A0.293
  • B0.351
  • 2.930
  • D3.510

Explanation

wpump=v·ΔP=(1/1000)×(3000-70)=(0.001)(2930)=2.930 kJ/kg.

Source: GATE ME 2009 (2009)

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