Home           Products           Company           Contact us     
> Fundamentals of Fluid Mechanics
> Steady Incompressible Flow
> Flow around Bodies
> Steady Flow of Compressible Fluids
> Examples of Transient Flow
> Hydraulic Fluid Energy Machines
> Components in Piping Systems and Plant Design
> Fluidic Experimental Plants
> Hydraulics for Civil Engineering
Products  |  Fluid Mechanics  |  Hydraulic Fluid Energy Machines  |  HM 282
HM 282 Experiments with an Axial Fan Show data sheet (pdf file) Print page
Technical Description

  Axial fans are used to transport gases. The medium to be transported is sucked in axially to the drive shaft of the axial fan by the rotation of the impeller. The medium flows through the impeller and is discharged axially behind the impeller.  

  The experimental unit provides the basic experiments to get to know the operating behaviour and the important characteristic variables of axial fans.

  HM 282 features an axial fan with variable speed via integradted controller, an intake pipe and a delivery pipe. The transparent intake and delivery pipes are fitted with guide plates for flow guidance.  A flow straightener in the intake pipe serves to calm the air. This enables precise measurements even with heavily reduced operation. The air flow is adjusted by a throttle valve at the end of the delivery pipe. 
  The experimental unit is fitted with sensors for pressure and temperature. The flow rate is determinated via differential pressure measurement on the intake nozzle.
  The microprocessor-based measuring technique is well protected in the housing. All the advantages of software-supported experiments and evaluation are offered by the GUNT software and the microprocessor. The connection to a PC is made by USB.

  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.


Learning Objectives / Experiments

- operating behaviour and characteristic variables of

  an axial fan

- recording the fan characteristic (differential

  pressure as a function of the flow rate)

- effect of the impeller speed on the pressure

- effect of the impeller speed on the flow rate
- stall

- determination of hydraulical power output and



* Illustrative model of an axial fan1
* Transparent delivery pipe and intake pipe1
* GUNT software for data acquisition, visualisation

  and operation1

* Part of the GUNT Labline fluid energy machines

Alternative products
HM 215 -- Two-Stage Axial - Flow Fan

[1] functioning and operating behaviour of an axial fan
[2] axial fan with electronically commutated drive motor
[3] variable speed via integrated controller

[4] transparent intake and delivery pipes
[5] throttle valve to adjust the air flow in the delivery pipe
[6] determination of flow rate via intake nozzle

[7] display of differential pressure, flow rate, speed, electrical power consumption and hydraulical power output, temperature and efficiency
[8] microprocessor-based measuring technique

[9] unit-specific GUNT software for data acquisition and operation via USB under Windows XP,  Windows Vista or Windows 7 

Technical Data

Intake pipe
- inner diameter: D=110mm
- length: L=275mm
Delivery pipe
- inner diameter: D=110mm
- length: L=310mm
Axial fan
- power consumption: 90W

- nominal speed: 9.500min-1
- max. flow rate: approx. 600m/h
- max. differential pressure: approx. 700Pa

Displayed / measuring ranges
- differential pressure: 0...1.800Pa
- flow rate: 0...1.000m/h
- temperature: 0...100C

- speed: 0...3.00min-1

- electrical power consumption: 0...500W


Dimensions and Weight
LxWxH: 670x340x370mm
Weight: approx. 20kg
Required for Operation
230V, 50/60Hz, 1 phase
Scope of Delivery

1 experimental unit

1 GUNT software CD + USB cable
1 set of instructional material

Order Details
070.28200  HM 282  Experiments with an Axial Fan
© 2005 G.U.N.T. Gerätebau GmbH