Sage-Tips

Where is closed cycle gas turbine used?

When an external source heats the air, then the gas remains constant. The amount of gas came out from the gas turbine is allowed to pass into the cooling chamber. Circulation of working fluid continues. Mainly used for stationary installation and marine applications.

Is closed gas turbine used in aircraft?

The gas turbine used in an aircraft is an open cycle gas turbine. The high-pressure, high-temperature working fluid, mostly a gas, enters a turbine where it expands to low pressure (equal to or a little above the atmospheric pressure) fluid.

What are the applications of gas turbine?

Applications of Gas Turbine Power Plant It is used to drive the generators and supply peak loads in steam, diesel or hydro plants. To work as combustion plants with a conventional steam boiler. To supply mechanical drive for auxiliaries. Used in ships and jet aircraft.

Is gas turbine an open cycle?

Most gas turbines operate on an open cycle in which air is taken from the atmosphere, compressed in a centrifugal or axial-flow compressor, and then fed into a combustion chamber.

Are turbines closed systems?

Turbine is a close system where by the high pressure steam from the boiler after entering the turbine to do work by driving the rotor passed to the condenser where it condensed into condensate and later used as feed water for the boiler .

What is common between an open cycle and closed cycle gas turbine?

The basic difference between them is the circulation of the working fluid. In the closed cycle gas turbine the same working fluid is circulated again and again within the turbine but in the open cycle gas turbine the working fluid i.e. air is replaced again and again while flowing through the gas turbine.

Is the compressor having practical uses in a gas turbine plant?

Explanation: Multistage axial flow compressor is the compressor in practical usage in a gas turbine plant.

What is the difference between open cycle gas turbine and closed cycle gas turbine?

In closed cycle gas turbine, the gas that comes out from the gas turbine passes into the cooling chamber. In an open cycle, the gases coming out from the gas turbine is exhausted in the atmosphere. The working fluid is circulated continuously. The working fluid is replaced continuously.

Is the compressor having practical used in gas turbine plant?

What is the difference between open cycle and closed cycle gas turbine?

What is closed cycle system?

An OTEC system in which working fluid with a low-boiling point is circulated. Cold, deep seawater is then pumped through a second heat exchanger where the working fluid vapor condenses back into a liquid and is recycled through the system. …

How does a closed cycle gas turbine work?

The closed cycle gas turbine works on the principle of Joule’s or Brayton’s cycle In this turbine, the gas is compressed isentropically and then passed into the heating chamber. The compressor generally used is of the rotary type.

What is closed cycle machinery?

Closed cycle machinery is quite attractive for a number of reasons. Among them: ‘Dirty’ fuels (such as coal) can be run in the cycle and, since hot gas contaminated with fuel particles never touches the turbine blading, erosion of the blading and degradation of its performance does not occur. Turbine blading retains its ‘as-new’ ef

How does a gas turbine cool the gas?

The cooling of the gas after passing from the turbine takes place in the cooling chamber. The closed cycle gas turbine works on the principle of Joule’s or Brayton’s cycle In this turbine, the gas is compressed isentropically and then passed into the heating chamber.

What are the advantages of supercritical carbon dioxide closed-cycle gas turbines?

Supercritical carbon dioxide closed-cycle gas turbines are under development; “The main advantage of the supercritical CO 2 cycle is comparable efficiency with the helium Brayton cycle at significantly lower temperature” (550 °C vs. 850 °C), but with the disadvantage of higher pressure (20 MPa vs. 8 MPa).