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1. The working gas is compressed in compressor and directed towards the heat exchanger (Air heater), where heat is being added to the compressed gas before it enters the turbine.
2. The heat is supplied by an external source such as a nuclear reactor, or some other heat source.
3. The hot gasses then expend and accelerate through a nozzle which drive the guide vanes of the turbine and then shaft.
4. At last, the remaining exhaust gasses pass through a cooler and directed towards the compressor inlet.
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How do you calculate specific fuel consumption of gas turbine?
A simple-cycle gas turbine used for power generation has a thermal efficiency of about 34 percent. Since 1 kwh is theoretically equivalent to 3,415 Btu, the simple-cycle gas turbine has a fuel connsumption of: 3,415 / 0.34 = about 10,000 Btu/kwh. Given the heating value (i.e, heat of combustion) of a fuel, we can easily calculate the simple-cycle gas turbine fuel usage. For example, natural gas has a net heating value of about 21,500 Btu/pound. Thus, the natural gas consumption in a simple-cycle gas turbine would be: 10,000 / 21,500 = 0.47 pounds/kwh = 0.21 kg/kwh. As another example, a typical diesel oil has a net heating value of 130,000 Btu/gallon. Thus, the diesel oil consumption in a simple-cycle gas turbine would be: 10,000 / 130,000 = 0.077 gallon/kwh. (The gallon used just above is the U.S. gallon rather than the Imperial gallon) A combined-cycle gas turbine will have a higher thermal efficiency and, hence, lower fuel consumptions.
Why the temperature and the pressure of gas are decreasing after flowing out from turbine?
The gas (working fluid) having flown through the turbine does some work on the turbine, converting its thermal energy into mechanical work produced by the turbine and coming out as an expanding gas with lower temperature and pressure.
What is difference between a geothermal and thermal power plant?
The steam turbine blades to turn creates steam.The steam engine, steam piston Myllng after the turn brings.+++They are both steam-engines. The turbine is purely rotative; the reciprocating steam-engine uses cylinders and pistons.
How do you use the word turbine in a sentence?
My dadd uses turbine to heat the gas of hiss engine after he stopped at the gas stop and didn't find any gas left. ( This may be a weird looking sentence for turbine,but at least I got an A on it. )
Where are ratchet mechanisms used?
Ratchet mechanisms used in Gas power plant for Gas Turbine. (like Barring gear in steam turbine).
What is open cycle and closed cycle?
In an open cycle gas turbine, the gases that are produced by combustion go directly into the atmosphere, though the heat produced can sometimes be reclaimed. In a closed cycle gas turbine, the gases produced are reused and are not emitted into the atmosphere.
What is open and closed cycle gas turbine?
In an open cycle gas turbine, the gases that are produced by combustion go directly into the atmosphere, though the heat produced can sometimes be reclaimed. In a closed cycle gas turbine, the gases produced are reused and are not emitted into the atmosphere.
What is the maximum plant load factor a gas turbine gives when operating in open cycle?
Depends on what type of gas, plant size and cycle and carriage.
How inefficiencies of compressor and turbine affect back work ratio and efficiency of gas turbine?
Inefficiencies in the compressor of a gas turbine cycle increase the back-work ratio and decrease the thermal efficiency of the gas turbine cycle, since they increase the compressor work.
What is the PLF for a comined cycle gas turbine?
Around 72 %
Is open cycle gas turbine is heat engine or not?
yes, it is a heat engine. A heat engine is one that extracts heat energy and converts it to mechanical energy.
What is the need for gas turbines?
gas turbine are used for expansion of high pressure gas,which rotates the rotor coupled with generator and hence electricity is finally produced.Gas turbine operate on brayton cycle.
How do you produce electricity from biogas?
You can use the bio gas to fuel either a steam cycle generator or a gas turbine.
How do you increase a Thermal efficiency of brayton cycle?
by increasing the turbine inlet gas temperature
Constant pressure cycle used in which engine?
Gas turbine engines and airbreathing jet engines use the Brayton Cycle.
What is the definition of combined cycle turbine technology?
Using waste energy in a gas fired electricity generation plant to run a steam turbine
Difference between rankine and brayton cycle?
Brayton cycle: It is open cycle. Rankine cycle: It's close cycle. Brayton cycle: Mostly used in gas turbine engine. Rankine cycle: Mostly used in power generation plant. Brayton cycle: Resemble less to Carnot cycle. Rankine cycle: Resemble is more to Carnot cycle.
