How much fuel does a gas turbine use?
A 13,750-hp (10.26-kw) gas turbine uses approximately 3000 lb (1360 kg) of pipeline gas in the expander each start, which is approximately 62 million Btu (65.41 GJ) each start. With a gas value of $2.00 per million Btu ($1.89/GJ) LHV, this is $124 per start.
How efficient are micro turbines?
Efficiency. Microturbines have around 15% efficiencies without a recuperator, 20 to 30% with one and they can reach 85% combined thermal-electrical efficiency in cogeneration.
How much energy does a micro turbine produce?
Since each individual microturbine produces anywhere from 15 to 300 kilowatts (kW) of energy, they are often grouped to produce the required energy for a given application. Most microturbines are about the size of a refrigerator and have very low nitrogen oxide emissions.
What is the fuel used in gas turbine?
Natural gas is the most preferred conventional fuel for propulsion of gas turbines. In view of this, it is often used as a reference fuel for comparison of the performance of gas turbine engines.
Why is gas turbine efficiency so low?
The decrease in the compressor airflow rate results in a decrease in the compressor power absorbed. Similarly, the reduction in the turbine flow also results in a decrease in turbine power. The compressor efficiency decrease is due primarily to the effects of compressor fouling.
How much does a microturbine cost?
Microturbine capital costs range from $700–$1,100/kW. These costs include all hardware, associated manuals, software, and initial training….D. Economics of Microturbines.
| Microturbine Cost | |
|---|---|
| Capital Cost | $700–$1,100/kW |
| O&M Cost | $0.005-0.016/kW |
| Maintenance Interval | 5,000-8,000 hrs |
What is the range of output power in microturbine?
25 to 500 kW
Electrical efficiency of the microturbine is 20%–30% and the power range is from 25 to 500 kW [2]. Microturbines are often used in large commercial buildings such as hotels, schools, and offices.
What does a microturbine do?
Microturbines are a relatively new distributed generation technology being used for stationary energy generation applications. They are a type of combustion turbine that produces both heat and electricity on a relatively small scale. Microturbines work like jet engines but produce electricity instead of thrust.
How do you calculate specific fuel consumption?
Simple Method
- Formula To Estimate Maximum Engine Fuel Consumption. Gallon Per Hour (GPH) = (specific fuel consumption x HP)/Fuel Specific Weight.
- 300-hp Diesel Engine Example. GPH = (0.4 x 300)/ 7.2 = 105/7.2 = 16.6 GPH.
- 300-hp Gasoline Engine Example. GPH = (0.50 x 300)/ 6.1 = 150/6.1 = 24.5 GPH.
- Other Related Resources:
How do you calculate SFC?
The units of this efficiency factor are mass per time divided by force (in English units, pounds mass per hour per pound; in metric units, kilograms per hour per Newton).
Which fuel is not used in gas turbine?
Explanation: Natural gases,petrol,diesel etc can be used as fuels in gas turbines. Gas turbines requires liquids with high specific heat as fuels. Explanation: Vanadium content must be low in the fuels used for gas turbines.
What kind of gas does a microturbine use?
Microturbines are small, high speed (30000 to 80000 rpm) gas turbines in the capacity range of. 25-300 kW fueled by natural gas, propane, diesel, kerosene or methane from landfills etc.
How is the heat output of a microturbine related to the fuel consumption?
Thus, the heat output, Q m, and the fuel consumption of the microturbines is directly proportional to the power output, P m. In addition, MT startups are explicitly accounted for, and their cost is based on fuel consumption during a 6 minute startup time.
What are microturbines for power generation-technology scan?
MICROTURBINES for Power Generation -Technology Scan. 1.0 INTRODUCTION. Microturbines are small, high speed (30000 to 80000 rpm) gas turbines in the capacity range of 25-300 kW fueled by natural gas, propane, diesel, kerosene or methane from landfills etc.
How much energy savings does a microturbine produce?
The fuel-energy-to-electrical-conversion efficiencies are in the range of 20 to 30%. In addition, recuperated units can produce 30 to 40% fuel savings from preheating. Cogeneration is an option in many cases as a microturbine is located at the point-of-power utilization.