How does a Rankine cycle work?
The Rankine cycle or Rankine Vapor Cycle is the process widely used by power plants such as coal-fired power plants or nuclear reactors. In this mechanism, a fuel is used to produce heat within a boiler, converting water into steam which then expands through a turbine producing useful work.
How do you calculate the efficiency of a Rankine Cycle?
Calculation of Thermal Efficiency of Rankine Cycle: Thermal Efficiency of Rankine Cycle: The thermal efficiency of the Rankine cycle is the ratio between the work produced by the steam turbine that has been reduced by the pump work, with the incoming heat energy from the boiler.
Why is Brayton pressure constant?
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.
Which fuel is used in dual cycle?
diesel
What is the purpose of reheat cycle?
The purpose of a reheating cycle is to remove the moisture carried by the steam at the final stages of the expansion process. In this variation, two turbines work in series. The first accepts vapor from the boiler at high pressure.
What is the purpose of reheat cycle Examveda?
Solution(By Examveda Team) The main purpose of reheating is to avoid excess moisture and to increase the quality of steam at the end section of turbine.
Which of the following is true for the reheat cycle?
Which of the following is true about a reheat cycle? Explanation: This is the functioning of a reheat cycle. Explanation: Here HP is the high pressure turbine and LP is the low pressure turbine. 10.
Which one of the following is an advantage of reheat cycle?
Advantages: The advantages of using a reheat cycle are higher thermal efficiency, reduced feed water pump power, smaller condenser, smaller boiler, long life of the turbine and less handling of the fuel and firing requirement.
What is the formula for efficiency of Vapour power cycle?
Wnet = (QH – QL) = area 1-2-3-4 enclosed by the cycle. Carnot cycle has the maximum possible efficiency for the given limits of temperature. But whereas the heat addition process in the Rankine cycle is reversible and at constant pressure, in the carnot cycle it is reversible and isothermal.