Why is Carnot air cycle not used in actual practice?

The most efficient heat engine cycle is the Carnot cycle, consisting of two isothermal processes and two adiabatic processes. It is not a practical engine cycle because the heat transfer into the engine in the isothermal process is too slow to be of practical value.

Why is Carnot not a realistic model for steam power plant?

1 Approved Answer The points to show the reasons are as given below: The controllation is not so easy for condensation process. The process for transfering the heat will be limited to maintain the isothermal conditions.

Why is the Carnot cycle not a realistic model for steam power plants chegg?

However; the Carnot cycle is not a suitable model for steam power cycle since: The turbine has to handle steam with low quality which will cause erosion and wear in turbine blades. It is impractical to design a compressor that handles two phase.

Are Carnot cycles real?

The Carnot cycle is a theoretical ideal thermodynamic cycle proposed by French physicist Sadi Carnot in 1824 and expanded upon by others in the 1830s and 1840s. It is not an actual thermodynamic cycle but is a theoretical construct. Every single thermodynamic system exists in a particular state.

Why Carnot cycle is the most efficient for?

The Carnot cycle is reversible representing the upper limit on the efficiency of an engine cycle. The Carnot cycle achieves maximum efficiency because all the heat is added to the working fluid at the maximum temperature.

Why is Carnot cycle ideal?

Efficiency. The Carnot cycle is the most efficient engine possible based on the assumption of the absence of incidental wasteful processes such as friction, and the assumption of no conduction of heat between different parts of the engine at different temperatures.

What is the difference between Carnot and Rankine cycle and why not use Carnot as the model cycle for powerplants?

Carnot cycle is an ideal cycle for heat engine which gives highest efficiency between given temperature difference but it is a theoretical cycle and actually no engine works on it. Rankine cycle is an ideal cycle of vapor or steam power generation. It gives highest efficiency between given temperature difference.

Is the Carnot cycle suitable as an ideal cycle for all power producing cyclic devices?

Practically, it is very difficult to add or reject heat to or from working fluid at constant temperature. But it is comparatively easy to add or reject heat to or from the working fluid at constant pressure. So, Carnot cycle is not used as an idealized cycle for steam power plants.

Why the Rankine cycle is preferred over the Carnot cycle in steam power plants?

What is the difference between the Brayton cycle and the Rankine 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 a Carnot cycle What is its purpose?

Carnot cycle, in heat engines, ideal cyclical sequence of changes of pressures and temperatures of a fluid, such as a gas used in an engine, conceived early in the 19th century by the French engineer Sadi Carnot. It is used as a standard of performance of all heat engines operating between a high and a low temperature.