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Products  |  Thermal Engineering and HVAC  |  Refrigeration and Air Conditioning Technology  |  ET 122
ET 122 Vortex Cooling Device Show data sheet (pdf file) Print page
Technical Description

  The experimental unit generates cold and hot air with the aid of ordinary compressed air. The central element of the experimental unit is a vortex cooling device also known as a cyclone tube. In the cyclone tube the tangentially incoming compressed air is moved in rapid rotation. This creates a cold and hot air flow in the cyclone tube which leaves the cyclone tube at opposite ends.
  A vortex cooling device does not have any moving parts, is maintenance-free and immediately ready for operation.
  The vortex cooling device is used for the convective cooling of high-speed tools, the air conditioning of protection suits and the cooling of switch cabinets. It is particularly suited for use in explosive environments. One benefit here is that the vortex device does not require an electric power supply.
  The inlet pressure is measured using a manometer. The compressed air volume and the outlet volume of the hot air flow are each measured using a rotameter. The inlet temperature of the compressed air and the outlet temperatures of the cold and hot air flows are displayed digitally.
  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / Experiments

- function and operation of a vortex cooling device
- air flow distribution dependent on the temperature

  of the cold air flow
- effect of the inlet pressure on heating and

  refrigeration capacity

* Demonstration of the vortex principle1
* Cooling and heating using compressed air

[1] functional model for cold air generation using a vortex device (cyclone tube) with the aid of compressed air
[2] experimental unit with clear design of all components at the front
[3] simple design, no moving components, wear-free
[4] measuring of the compressed air inlet pressure by manometer
[5] flow rate measurement of compressed air and exhaust hot air by rotameters
[6] digital displays for inlet temperature and outlet temperature of cold and hot air


Technical Data
Vortex cooling device
- inlet pressure: 7bar
- air consumption: max. 280L/min
- refrigeration capacity: max. 175W
- minimum temperature: -47C
- maximum temperature: 110C
Measuring ranges
- temperature: 0...150C / -50...50C
- pressure: 0...10bar
- flow rate: 30...300L/min
Dimensions and Weight
LxWxH: 900x400x700mm
Weight: approx. 60kg
Required for Operation
230V, 50Hz, 1 phase or 120V, 60Hz, 1 phase
Compressed air 10bar
Scope of Delivery
1 experimental unit
1 set of instructional material
Order Details
061.12200  ET 122  Vortex Cooling Device
© 2005 G.U.N.T. Gerätebau GmbH