Differbetween
i. In Carnot cycle, the pressure of the working fluid is raised from the condenser pressure to the boiler pressure through wet compression, whereas in Rankine cycle saturated liquid is pumped to the boiler with a pump.
- Why the Rankine cycle efficiency is different from Carnot cycle efficiency?
- What is the relation between efficiencies of Rankine Cycle () and Carnot cycle for the same pressure ratio?
- What is the difference between a Rankine cycle and a Brayton cycle?
- What is the Rankine cycle used for?
- Why is Carnot cycle most efficient?
- What is the efficiency of Rankine Cycle?
- What are the four process of Rankine Cycle?
- Is a Carnot cycle reversible?
- What is meant by Carnot cycle?
- Why pump is used in Rankine Cycle?
- What is a Rankine cycle process?
- Where is Brayton cycle used?
Why the Rankine cycle efficiency is different from Carnot cycle efficiency?
The basic and main difference between Carnot and Rankine cycle is that in Carnot cycle heat is added and rejected at constant temperature and in Rankine cycle heat addition and rejection take place at constant pressure.
What is the relation between efficiencies of Rankine Cycle () and Carnot cycle for the same pressure ratio?
What is the relation between efficiencies of Rankine cycle and Carnot cycle for the same pressure ratio? Explanation: The relation between efficiencies of Rankine cycle and Carnot cycle for the same pressure ratio is given by, (ηr) < (ηc ). 3.
What is the difference between a Rankine cycle and a Brayton cycle?
The key difference between Rankine cycle and Brayton cycle is that the Rankine cycle is a vapour cycle, whereas the Brayton cycle is a cycle between liquid and vapour phases. Both the Rankine cycle and Brayton cycle are thermodynamic cycles.
What is the Rankine cycle used for?
The Rankine cycle is a model used to predict the performance of steam turbine systems. It was also used to study the performance of reciprocating steam engines. The Rankine cycle is an idealized thermodynamic cycle of a heat engine that converts heat into mechanical work while undergoing phase change.
Why is Carnot cycle most efficient?
The Carnot cycle can be thought of as the most efficient heat engine cycle allowed by physical laws. ... This means that the Carnot cycle is an idealization, since no real engine processes are reversible and all real physical processes involve some increase in entropy.
What is the efficiency of Rankine Cycle?
Thermal efficiency of a practical Rankine cycle, The performance of an actual turbine or pump is usually expressed in terms of isentropic efficiency. Isentropic efficiency of turbine (hT) is defined as the ratio of Work delivered by actual turbine to Work delivered by an isentropic turbine .
What are the four process of Rankine Cycle?
The ideal Rankine cycle consists of the following four processes, as shown on the T-s diagram on the left: 1-2: Isentropic compression in a pump. 2-3: Constant pressure heat addition in a boiler. ... 4-1: Constant pressure heat rejection in a condenser.
Is a Carnot cycle reversible?
The Carnot heat-engine cycle described is a totally reversible cycle. That is all the processes that compose it can be reversed, in which case it becomes the Carnot refrigeration cycle.
What is meant by Carnot cycle?
: an ideal reversible closed thermodynamic cycle in which the working substance goes through the four successive operations of isothermal expansion to a desired point, adiabatic expansion to a desired point, isothermal compression, and adiabatic compression back to its initial state.
Why pump is used in Rankine Cycle?
The Rankine cycle system consists of a pump, boiler, turbine, and condenser. The pump delivers liquid water to the boiler. The boiler heated by the solar heat converts water to superheated steam. This steam is used to run the turbine which powers the generator.
What is a Rankine cycle process?
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.
Where is Brayton cycle used?
The Brayton cycle is a thermodynamic cycle used in some heat engines. Notably, it is used for gas turbine engines and some jet engines. The cycle consists of compressing ambient air, mixing the air with fuel, then igniting the mixture, which expands, doing work.
