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17:12 / 24.01.2022
printable version Fan and thermic test-stand
 
Fan and thermic test-stand

The unit is a combination of fan test and heat transfer technics. Heat from circulating hot water is exchanged to an air flow. This provides wide thermodynamical investigations:

  • Radial fan characteristics
  • Radial fan efficiencies
  • Characteristics of a circulating pump
  • Heat exchange efficiencies

Properties:

  • Centrifugal 4-speed waterpump
  • 3-kW electric heater with on/off control
  • Iris air flow restrictor

 

 

Measuring systems:

The measuring devices are digitally connected to the internal controller, sending serial data to the comprised portable PC. Stand control and data acquisition is performed by Windows-software. Measured quantities are:

  • Torque and speed of the motor
  • Water flow-rate
  • Pressures
  • Pitot static tube in the air duct for pressures and flowrate measurement
 

Technical details:

Dimensions:
1.5m x 0.65m x 1.8m
Weight: 180 kg
Electrical supply: 230V AC
 

See also Building automation test-stand which is an extension of this unit.

 
Gebläseversuchsstand Schema
 
F Radial centrifugal fan
M Swivel bearing motor
HE Heat exchanger
I Iris orifice
P Pump
C Impulse generator flow
B Boiler
p Rotameter
V Manometer
Δp Differential manometer
1-4 Temperature measurements
HC Heatflow calculator
Keywords: Fan characteristics, circulation pump characteristics
 
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