The turbine is an educational mini gas
turbine power plant with a radial flow compressor and axial flow
turbines, gear box, generator, and electrical loads as in modern gas
turbine power plant.
The first stage is a hot gas generator. Inlet air through an orifice
flow measuring device is compressed by a single stage radial flow
compressor. The turbine is motor started and runs on Jet A fuel. Fuel is
injected by a fuel pump and ignighted in the combustion chamber
providing hot gas for a single stage axial flow turbine which in turn
drives the compressor. The hot gas is discharged axially to a larger
power turbine on the second shaft and exhausts to atmosphere The gas
generator runs on ceramic bearings. A fan is provided for cooling the
engine.
The power turbine output shaft is connected to the gear box. An AC
generator is connected to the gear box. Electrical power output is from
lamp loads.
An Electronic Control Unit (ECU) controls the basic turbine
operation. Additional instruments are provided for monitoring and
controlling the plant operation and performance.
A touch screen computer with an interface unit, and software are
provided for speed and load control, data display and analysis, and to
assist the ECU.
Safety features include shut down for gas generator or power turbine
over speed, and power turbine entry over temperature shut down. The unit
is floor standing with removable supports.
TYPICAL EXPERIMENTS
- Understanding the thermodynamic process.
- Torque vs speed.
- Input power, output power and plant efficiency.
TECHNICAL DATA
| Gas generator engine construction. |
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| - Diffuser |
: High strength aluminium. |
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| - Combustion chamber |
: Stainless steel. |
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| - Turbine wheel |
: Vacuum cast inconel. |
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| - Compressor |
: High grade aluminium alloy. |
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| .Running fuel |
: Jet A or kerosene with jet oil. |
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| .Power turbine construction. |
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| - Turbine wheel |
: Vacuum cast inconel. |
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| - Interstage guide vane |
: Stainless steel. |
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| . Gear box. |
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| - Type |
: Planetary. |
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| - Lubrication |
: Jet A. |
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| .Generator |
: 220V, 1 ph, 50 Hz. |
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| .Gear box and generator connection |
: Synchronous belt. |
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| .Lamp loads |
: 600 W. |
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| .Accessory : |
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| - Engine exhaust duct |
: 2 ea. |
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| - Engine cooling fan |
: 1 ea. |
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| - Ear muffs |
: 2 ea. |
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| - Jet oil |
: 1 l. |
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| - Barometer |
: 1 ea. |
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| . Sensors |
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| - Temperatures |
: ambient air, deffuser exit, gas generator turbine entry, power turbine entry and exit. |
| - Pressures |
: Diffuser exit, power turbine entry and exit and power turbine entry and exit. |
| - Speeds |
: Gas generator, gear box output shaft and generator. |
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| - Voltage and current. |
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| - Fuel flow rate. |
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| - Air flow rate |
: Differential pressure at inlet orifice. |
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| .Power supply |
: 220V 1Ph 50Hz. Other power supply is available on request. |
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