Q. Which of the following contributes to the improvement of efficiency of Rankine cycle in a Thermal Power Plant?

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Q. Match the following:

i) Boiler A. reversible adiabatic expansion of steam

ii) turbine B. constant pressure heat heat addition

iii) Condenser C. reversible adiabatic compression

iv) pump D. constant pressure heat rejection

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Q. What is the actual turbine inlet temperature in Rankine cycle?

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Q. Rankine cycle efficiency of a good Steam Power Plant may be in the range of?

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Q. A simple Rankine cycle operates the Boiler at 3 MPa with an outlet temperature of 350°C and the Condenser at 50 kPa. Assuming ideal operation and processes, what is the thermal efficiency of this cycle?

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Q. A simple Rankine cycle produces 40 MW of power, 50 MW of process heat and rejects 60 MW of heat to the surroundings. What is the utilization factor of this co generation cycle neglecting the pump work?

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Q. A gas turbine works on __________

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Q. What is the range of Thermal efficiency in the Brayton cycle?

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Q. What is the maximum possible TIT(Turbine Inlet Temperature)?

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Q. A simple Brayton cycle uses Helium as the working fluid, has a maximum temperature of 1000 K, and a pressure ratio of 4. At the start of the compression, the Helium pressure and temperature are 50 kPa and 250 K. Based upon cold-air standard analysis assumptions, the thermal efficiency of the cycle is?

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Q. A simple Brayton cycle has a pressure ratio of 5 and a maximum temperature of 900 K. Air enters the compressor at 100 kPa, 300 K. Based upon cold-air standard analysis assumptions, the back-work ratio of this cycle is?

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Q. Which of the following methods can be used to increase efficiency of a Brayton cycle?

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Q. For the same maximum pressure and heat input, the most efficient cycle is?

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Q. The compression ratio is the ratio of ____________

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Q. A Sterling engine uses an energy source whose temperature is 727°C and an energy sink whose temperature is 27°C. How much heat must be added to the engine to produce 1 unit of work?

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Q. Which of the following is not a component of Brayton cycle?

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Q. For a given value of mean temperature of heat addition(Tm) is?

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Q. Mean temperature of heat addition can be increased by?

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Q. Internal irreversibility of Rankine cycle is caused by?

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Q. Which of the following statement is true?

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