Description
Areas of application
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Geometry variations: Investigation of inlet and outlet guide geometries as well as internal, external, and asymmetrical spiral geometries
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Flow analysis: Flexible use of optical measurement techniques such as L2F and PIV for precise flow investigations
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Investigation variations: Adaptation to various impellers, diffuser variants, and inlet guide vanes
Technical setup and operation
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Modular design: The test rig consists of a single-stage centrifugal compressor whose geometry can be configured for various investigations
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Closed-loop operation: Operation with reduced energy consumption through negative pressure at the compressor inlet
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Functionality: Air is drawn in, stabilized in the settling chamber, guided through inlet guide vanes, and then compressed in the radial compressor impeller and diffuser
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Efficiency improvement: Recirculation of air through a heat exchanger in closed-loop operation to optimize energy efficiency
Applied measurement technology
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Pressure and temperature measurement: Precise measurement systems with Type K thermocouples and PT100 sensors
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Flow analysis: CTA/CCA probes, PIV, and L2F for investigating flow velocities and turbulence
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Vibration monitoring: Torque measurement shaft and acceleration sensors
Specifications
| Output power | 1350 kW |
| Rotational speed | 18.000 1/min |
| Mass flow | 9 kg/s |
| Total pressure ratio | 2,4 |
| Max. isentropic efficiency | 85 % |
| Impeller diameter | 400 mm |
| Max. tip speed Mach number | 1,12 |
| Load coefficient | 0.25 - 1,3 |
