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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 else can I help you with?
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. )
What is the effect or reheater in the gas turbine?
1.Turbine output is increased for same compressor work. 2.As more heat is supplied,thermal efficiency decreases.
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.
Difference between plant heat rate and turbine heat rate?
The turbine heat rate of a steam turbogenerato is the ratio of thermal input: power generated. It is often expressed in kJ/kWh. The efficiency of the turbogenerator is simply calculated from this. The plant heat rate is the ratio of fuel energy into the plant: power generated. It is greater than the turbine heat rate, because not all of the fuel's thermal energy can be captured by the boiler, and also power station services such as fuel handling, flue gas cleaning etc consume power. Consequently, more fuel is needed for each unit of useful net power produced. Plant heat rate is often expressed in kJ/kWh or Btu/kWh. The fuel energy input used in the plant heat rate calculation may be on a higher heating value (HHV) or a lower heating value (LHV) basis, and the plant power output, although usually on a net (net of plant own consumption) is sometimes on the basis of that at the generator terminals. Whatever is used should be made clear, but it often is not.
Open cycle arrangement of a gas turbine?
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.
Heat rate of gas turbine?
The heat rate of a gas turbine using petroleum is 13,622. On the other hand, gas turbines that use natural gas produce a heat rate of 11,499.
How do you calculate heat rate in gas power plant?
E=MC2 + o2 + H20 = Heat rate
What is heat rate in gas turbine combustion?
Heat rate in gas turbine combustion refers to the amount of fuel energy required to produce a unit of power output. It is typically measured in British thermal units (BTU) per kilowatt-hour (kWh) or in joules per kilowatt-hour (kJ/kWh). A lower heat rate value indicates a more efficient combustion process.
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. )
How can we calculate the heat flow into the gas?
To calculate the heat flow into a gas, you can use the formula Q mcT, where Q is the heat flow, m is the mass of the gas, c is the specific heat capacity of the gas, and T is the change in temperature.
How you increase load electrically in Gas turbine plants?
By increasing the flow rate of the natural gas being used as the fuel.
What has the author Je-Chin Han written?
Je-Chin Han has written: 'Gas turbine heat transfer and cooling technology' -- subject(s): Gas-turbines, Transmission, Cooling, Heat 'Gas turbine heat transfer and cooling technology' -- subject(s): SCIENCE / Mechanics / Dynamics / Thermodynamics, Transmission, Cooling, SCIENCE / Energy, Gas-turbines, Heat 'Analytical heat transfer' -- subject(s): Transmission, Heat
Gas turbine generator?
gas turbine generator
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 effect or reheater in the gas turbine?
1.Turbine output is increased for same compressor work. 2.As more heat is supplied,thermal efficiency decreases.
How you calculate heat input and traveling speed for Gas Metal Arc Welding?
How you calculate heat input and traveling speed for Gas Metal Arc Welding?
How do you convert gas to electricity?
Generally, you burn the gas to heat water to turn it into steam which then turns a turbine connected to a generator which produces the electricity.
