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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.
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Why Fuel consumption varying when the generator load varies?
with decrease in fuel consumption the amount of steam produced is also reduced.Hence when lower quantity of steam passes through the turbine the torque generated is less and since generator and turbine are coupled on a single shaft the generator torque also decrease which reduces load.
Which calculator helps to calculate fuel consumption?
A pen and paper. Miles driven divided by gallons of fuel used gives you mpg.
How do calculate heat rate turbine gas?
Turbine cycle heat rate is a measure of the turbine efficiency. It is determined from the total energy input supplied to the turbine divided by the electrical energy output. The energy input is the difference between the energy in the steam supplied to, and leaving from the turbine. The total energy supplied is the sum of the steam mass flow rates to the turbine multiplied by their respective enthalpies. The energy leaving is the sum of mass flow rates exiting the turbine multiplied by their respective enthalpies. Take the difference in the total energy supplied and leaving, divide by the electrical output and this gives you heat rate, typically expressed in Btu/kWh or kJ/kWh. This is easy for a single source of steam passing through the turbine to a condenser, but gets a bit more tricky for reheat turbines with multiple extractions as all the streams in and out have to be accounted for.
What is bleeding of turbine?
Bleed air in gas turbine engines is compressed air taken from within the engine, after the compressor stage(s) and before the fuel is injected in the burner
Effect of gearing ratio on fuel consumption?
Gear ratios will let the engine run at the speed and load at which it is most efficient, which is good for low fuel consumption and an exhaust that is as clean as possible.
How do you calculate specific fuel consumption in a plant?
at first we have to know what is specific fuel consumption. From definition we know that- "The amount of fuel required per unit production".
Where does a gas turbine engine get its best thrust specific fuel consumption?
I think it happens because of the altitude and the fuel burn rate get slower as they clam higher 10,000 fleet
Why used aero-derivative gas turbine?
Efficient and low fuel consumption
How can you calculate the fuel consumption of a 200kva generator?
1hrs diesel consumption with out load
What is the formula to calculate fuel consumption in diesel engine?
consumtpn
What is specific fuel oil consumption?
consumption of fuel in grams per horse power(kw) one hour
How do you calculate heat rate of steam turbine?
Heatrate is the term used in power industries to check how efficiently the plant is running. its unit is kilo calories per kilowatt hour..= Kcal/Kwh or in a shortcut method, the HR can be directly calculated by using the formula = Specific fuel consumption * Calorific value
How do you calculate fuel consumption per Kilowatt hour in diesel engine?
You can calculate fuel consumption per Kilowatt hour in diesel engine by multiplying the miles per gallon by the wattage per hour that the engine runs. This gives the net Kilowatt hour fuel consumption.
How do you calculate Specific fuel Consumption boiler?
if a gas boiler is capacity of 20 ton & steam pressure is 13 bar,how much fuel consume it??if other requirments need assume please.
Is there a calculator that can calculate my fuel consumption?
Yes, if you visit the EPA homepage, they have a basic fuel consumption calculator. You can also contact the manufacturer of your vehicle for the EPA estimates.
Why Fuel consumption varying when the generator load varies?
with decrease in fuel consumption the amount of steam produced is also reduced.Hence when lower quantity of steam passes through the turbine the torque generated is less and since generator and turbine are coupled on a single shaft the generator torque also decrease which reduces load.
What is thrust specific fuel consumption of turbo shaft?
There is no such thing as thrust specific fuel consumption of a turboshaft engine, as a turboshaft is designed to deliver mechanical power, not thrust. This mechanical power can be converted into electric power by a generator or converted into thrust by a propeller or rotor. Basically, a turboshaft uses jet technology but is an alternative to a piston engine. While thrust specific fuel consumption doesn't exist for a turboshaft, "brake specific fuel consumption" does. It measures the rate of flow of fuel required for a certain amount of power. For example, a specific fuel consumption of 0.2 lbs/h/hp means that for every horsepower the turboshaft produces, it burns 0.2 lbs of fuel each hour.
