Description and Specification for Lab Tenders
Astra Scientific Turbo Jet Engine Test Bench.
The experimental test stand trainer investigates the behavior during
operation of a jet engine. includes the following components: jet
engine (with compressor, annular combustion chamber, turbine, and
propelling nozzle), fuel system, starter and ignition system, and
measurement and control equipment. The gas turbine works as an open
cyclic process, with the ambient air being drawn out and fed back in.
In the jet engine, the ambient air drawn in is first brought to a higher
pressure in the single-stage radial compressor. In the downstream
combustion chamber, fuel is added to the compressed air and the
resulting mixture is ignited. The temperature and flow velocity of the
gas increase. The gas flows out of the combustion chamber into the
single-stage axial turbine and discharges a portion of its energy to the
turbine. This turbine drives the compressor. In the propelling nozzle,
the partially expanded and cooled gas expands to ambient atmospheric
pressure and the gas accelerates to almost the speed of sound. The
high-speed gas outflow generates the thrust. In order to reduce the
outlet temperature, the exhaust gas stream is mixed with the ambient air
in a mixing pipe. The gas turbine is started fully automatically with
the aid of an electric starter.
The speed, temperatures, and mass flow rates of the air and fuel is
recorded using sensors. The measured values can be read on digital
displays. At the same time, the measured values can also be transmitted
directly to a PC via USB. The data acquisition software is included.
FEATURES:
• behavior during operation of a jet engine including start-up procedure
• determination of the specific thrust
• determination of the specific fuel consumption
• determination of lambda (fuel-air ratio)
SPECIFICATIONS:
• Jet engine
max. thrust: 82N at 117000min-1
speed range 35000…117000min-1
fuel consumption: max. 22L/h (full load)
exhaust gas temperature: 610°C
sound level at 1m distance: max. 130dB(A)
Fuel: kerosene or petroleum + turbine oil
Starting system: electric starter
1 tank for fuel: 5L
• Measuring ranges
differential pressure: 0…150mbar
pressure: 0…2,5bar (combustion chamber)
temperature: 2x 0…1200°C / 1x 0…400°C
speed: 0…120000min-1
consumption: 0…25L/h (fuel)
force: 0…+/-200N
• 230V, 50Hz, 1 phase
• 230V, 60Hz, 1 phase
• 120V, 60Hz, 1 phase