Question
The values of enthalpy of steam at the inlet and outlet of a steam turbine in a Rankine cycle are 2800 kJ/kg and 1800 kJ/kg respectively. Neglecting pump work, the specific steam consumption in kg/kW-hour is
The correct answer is
3.60
Specific turbine work is 2800−1800=1000 kJ/kg. One kWh is 3600 kJ, so specific steam consumption is 3600/1000=3.60 kg/kWh.
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Important Questions from Rankine Cycle - Teaching
In a Ranking cycle, the work done by turbine during expansion of steam is 8 kJ while the work required for pump to feedback the water into the boiler is 6 kJ. Determine the work ratio.
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