Fans and compressors
A characteristic of fans is the pressure ratio, which indicates the ratio of the absolute final pressure to the absolute intake pressure. Fans are different from compressors because of their low pressure ratio of max. 2,5.

HM 280
Experiments with a radial fan
Operating behaviour and characteristic variables of a radial fan; two interchangeable rotors.

HM 282
Experiments with an axial fan
Operating behaviour and characteristic variables of an axial fan.

HM 292
Experiments with a radial compressor
Two-stage compressor: recording of the compressor curve for both stages.

HM 210
Characteristic variables of a radial fan
Determination of flow rate via iris diaphragm or Venturi nozzle.

HM 215
Two-stage axial fan
Determining the characteristics of a two stage axial fan.

HL 710
Air duct systems
Planning and setup of simple and complex air duct systems.
