Computerized Micro Jet Engine Test Facility
Flexible test bed for experiments
Vladimir Krapp ● Yeshayahu Levy ● Eliyahu Mashiah
Turbo and Jet Engine Laboratory
Technion
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Technion – Israel
www. jet‐engine‐lab.technion.ac.il
• Basic physics similar to full scale engines
• Education
• UAVs
• Fun
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Why micro‐jets?
Turbo and Jet Engine Laboratory
Technion – Israel
2
www. jet‐engine‐lab.technion.ac.il
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Technion – Israel
3
www. jet‐engine‐lab.technion.ac.il
• Measurements of engine performance • Integrated control of operation and data acquisition
• Easy expandability with additional equipment
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
System Capabilities
Turbo and Jet Engine Laboratory
Technion – Israel
4
www. jet‐engine‐lab.technion.ac.il
Engine on test stand
Control devices
Sensors
PC running LabVIEW software
Data acquisition and control hardware
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
System Components
Turbo and Jet Engine Laboratory
Technion – Israel
5
www. jet‐engine‐lab.technion.ac.il
• Representative of the whole category of micro‐jets
• Used in scale models, as well as in some less conventional applications
• Diameter: 130mm
• Length: 267mm
• Max. Thrust: 230N
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
AMT Olympus engine
Turbo and Jet Engine Laboratory
Technion – Israel
6
www. jet‐engine‐lab.technion.ac.il
•
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•
•
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Single spool
Radial compressor
Axial turbine
Pressure ratio: 4:1
Max. RPM: 108,000
• Compressed air start‐up
• Propane gas pre‐heating • Evaporators
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
AMT Olympus engine
Turbo and Jet Engine Laboratory
Technion – Israel
7
www. jet‐engine‐lab.technion.ac.il
Measurement points
T4
T3
T5
Temperature Measurement
Pressure Measurement
P05
P04
P03
P3
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
AMT Olympus engine
Turbo and Jet Engine Laboratory
Technion – Israel
8
www. jet‐engine‐lab.technion.ac.il
Sensors
Load cell
T4
T3
T5
Thermocouple
RPM sensor
Analog Voltage
Signal
Pulse Counter
P05
Turbine Fuel Flow Meter
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
P04
P03
P3
AMT Olympus engine
Turbo and Jet Engine Laboratory
Technion – Israel
9
www. jet‐engine‐lab.technion.ac.il
•
•
•
•
Graphical programming language
Evolved specifically for measurement and control
Rapid software development
GUI inherent in program
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
LabVIEW control software 10
Turbo and Jet Engine Laboratory
Technion – Israel
www. jet‐engine‐lab.technion.ac.il
Program Front Panel
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
LabVIEW control software 11
Turbo and Jet Engine Laboratory
Technion – Israel
www. jet‐engine‐lab.technion.ac.il
Measurement of exhaust jet flow parameters
Pitot tube
Gas Probe
Probe
Thermocouple
Jet direction
Engine
Jet
500mm
Section B
‐X
Y a
xis
Section A
is
X ax
October 7 2010,
Technion, Istarel
Experiment
Y
Engine Exhaust
Traverse arms
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
100mm
Turbo and Jet Engine Laboratory
Technion – Israel
12
www. jet‐engine‐lab.technion.ac.il
Pitot tube
Thermocouple
Gas Probe
Portable Gas Analyzer
Thermocouple Reader
Pressure Transducer
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Experiment: probe setup
Technion – Israel
13
www. jet‐engine‐lab.technion.ac.il
P(bar)
T(° )
Jet
direction
Test section
100mm
Engine
Exhaust
80K RPM
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Jet profile, 100mm downstream
Technion – Israel
14
www. jet‐engine‐lab.technion.ac.il
Jet
direction
Test section
100mm
Engine
Exhaust
80K RPM
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Jet profile, 100mm downstream
Technion – Israel
15
www. jet‐engine‐lab.technion.ac.il
T(° )
Jet
direction
Engine
Exhaust
Test section
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Jet temperature along axis , various RPM
Turbo and Jet Engine Laboratory
Technion – Israel
16
www. jet‐engine‐lab.technion.ac.il
P(bar)
Jet
direction
Engine
Exhaust
Test section
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Jet pressure along axis, various RPM
Turbo and Jet Engine Laboratory
Technion – Israel
17
www. jet‐engine‐lab.technion.ac.il
Comparison of theory and test result
Jet temperature along axis
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Free jet theory and comparison to test Technion – Israel
18
www. jet‐engine‐lab.technion.ac.il
Comparison of theory and test result
Jet temperature – 500mm downstream
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Free jet theory and comparison to test Technion – Israel
19
www. jet‐engine‐lab.technion.ac.il
Intensity of IR radiation level
High
T(° )
Low
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Thermal imaging of jet
Technion – Israel
20
www. jet‐engine‐lab.technion.ac.il
cRIO – reconfigurable input/output system
Includes a real time capable controller, with interchangeable I/O modules: analog and digital input and output
thermocouple input step motor controller etc.
cRIO
Various input and output modules
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
2nd generation test stand electronics box: Integrating power supplies, connection routing, data acquisition device (cRIO) Future development
Turbo and Jet Engine Laboratory
Technion – Israel
21
www. jet‐engine‐lab.technion.ac.il
Inlet Obstruction testing
A custom made inlet with attachable flow disruption rings. Examination of flow inside the inlet is made via pitot tube. Aim of project is to examine effect of inlet obstructions
on the engine
operation parameters Exhaust options
The Olympus engine allows for different exhaust options, such as noise reduction devices (above) or a reheat section.
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Future development
Turbo and Jet Engine Laboratory
Technion – Israel
22
www. jet‐engine‐lab.technion.ac.il
• A test bench was built with the capability to study the characteristics of various micro‐turbine engines
• The system built is highly modular and flexible
• Useful experiments have already been performed • Much is yet to be done, and we’ll be glad to cooperate on this matter
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Summary
Turbo and Jet Engine Laboratory
Technion – Israel
23
www. jet‐engine‐lab.technion.ac.il
Questions?
9th Israeli Symposium on
Jet Engines and Gas
Turbines,
October 7 2010,
Technion, Istarel
Turbo and Jet Engine Laboratory
Technion – Israel
24
www. jet‐engine‐lab.technion.ac.il