What are advantages of modified Rankine Cycle?
It is released at a higher pressure and then there is a pressure drop at constant volume down to condenser pressure. This early release causes reduction in efficiency because the work for the cycle is reduced while the heat supplied per cycle remains the same. This cycle is known as modified Rankine cycle.
What is the range of Rankine cycle efficiency of a good steam power plant?
Rankine cycle efficiency of a good Steam Power Plant may be in the range of? Explanation: Efficiency of Rankine cycle in actual working condition is found to be between 35 to 45%. 10. A simple Rankine cycle operates the Boiler at 3 MPa with an outlet temperature of 350°C and the Condenser at 50 kPa.
What is work ratio in gas turbines?
The work ratio of a gas turbine plant is defined as the ratio of. A. Net work output and heat supplied. Net work output and work done by turbine. Actual heat drop and isentropic heat drop.
What is the back work ratio in Brayton cycle?
Back Work Ratio The fraction of the work produced by the turbine that is consumed by the compressor.
What is the efficiency of Brayton cycle?
The ratio of the maximum to minimum pressure in the cycle is 4.0 and the maximum cycle temperature is 1200 K. Compressor and turbine isentropic efficiencies are 0.85. The compression process occurs in two stages, each having a pressure ratio of 2.0 with intercooling to 300 K in between.
What are the stages involved in Brayton cycle?
Ideal Brayton cycle: isentropic process – ambient air is drawn into the compressor, where it is pressurized. isobaric process – the compressed air then runs through a combustion chamber, where fuel is burned, heating that air—a constant-pressure process, since the chamber is open to flow in and out.
Who establishes the recommended operating time between overhauls?
28 (8135) – Who establishes the recommended operating time between overhauls (TBO) of a turbine engine used in general aviation? A- The engine manufacturer.