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HM 292 Centrifugal Compressor Demonstrator
Education / GUNT Hamburg / Fluid Mechanics and Hydrology / Hydraulic Fluid Energy Machines /


 The HM 292 Centrifugal Compressor is part of an equipment series for the investigation of fluid-flow machines. The arrangement, fitted to a sturdy base plate, contains the compressor with intake and delivery tube, as well as transducers for air volumetric flow rate, temperature, fan speed, intake and delivery pressure. The voltage signals sent by the transducers are digitised with the data acquisition card (available as accessory). The associated software permits further processing on a PC. The following accessories are required for operation: an Interface Module (HM 280.01), Data Acquisition Card with Software (HM 280.03) and Set of Connecting Cables (HM 280.04). This layout makes it possible to record measured values during the experiments, and process and store this data on a PC. A Power Meter (HM 280.05) facilitates the determination of efficiencies.

Learning Objectives / Experiments
Together with the necessary accessories, the following experiments can be performed:

· Recording of the compressor curve for both stages
· Recording of efficiencies

The experiments can be performed at varying speeds.
[1] Demonstration model of a two-stage compressor
[2] Experimental set-up on powder coated base plate
[3] lxwxh 850x450x900mm, approx. 25kg
[4] Transparent intake and delivery tube
[5] Medium conveyed: air
[6] Max. compressor speed 16000rpm, adjustable
[7] Electronic measurement of pressure difference, rotational speed, temperature and volumetric flow rate
[8] Volumetric flow rate of air via press. transmitter
[9] Processing of the measured data on a PC
[10] 230V, ~50Hz
Technical Data
Two-stage centrifugal compressor
Power output 1000W
Max. capacity 180m³/h
Max. head 235mbar
Rotational speed 1000...16000rpm (adjustable)
Measuring ranges:
- Differential pressure stage 1/stage 2: 0...50mbar
- Different. pressure measuring orifice: 0...5mbar
Compressor rotational speed: 0...20000rpm
Temperature inlet/outlet 0...100°C
Dimensions and Weight
lxwxh : 850 x 450 x 450 mm
Weight : approx. 25 kg
Required for Operation
230V, ~50Hz
Scope of Delivery
1 basic unit, 1 instruction manual
Order Details
070.29200 HM 292 Centrifugal Compressor Demonstrator