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ESE 2021 ME Technical Quiz || Rankine Cycle
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Question 1
What is the specific steam consumption (in kg/kWh) of the Rankine cycle based on net output if the enthalpies at turbine inlet and exit are 3200 kJ/kg and 2050 kJ/kg respectively. Specific work by pump is 1.5 kJ/kg.
Question 2
A simple steam power cycle receives 100,000 kJ/min as heat transfer from hot combustion gases and rejects 66,000 kJ/min as heat transfer to the environment. If the pump power required is 1400 kJ/min, the thermal efficiency of the cycle and turbine power output is ________.
Question 3
Find the efficiency of open feed water heater regenerative cycle as shown below, when 25% of the total steam is extracted.
Question 4
In a Rankine cycle, the enthalpies at turbine entry and outlet are 3159 kJ/kg and 2187 kJ/kg respectively. If the specific pump work is 2 kJ/ kg. The specific steam consumption (in kg/kW-h) of the cycle based on net output is _________
Question 5
In a power plant, the efficiencies of boiler, turbine, electric generator, cycle and the overall plant are 0.96, 0.95, 0.92, 0.5 and 0.25, respectively. What percentage of total electricity generated is consumed in running the auxiliaries _________?
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May 3ESE & GATE ME
