Pressure change test bench for air conditioning components tests at -40 to +140 degrees Celsius

The test medium used is water-glycol mixture or pure glycol (for example Glysantin® G40, G44, G48). The refrigeration cycle is tested in the temperature range from -40 to +20 degrees Celsius, and in the heating circuit from +20 to +140 degrees Celsius. The development of alcohol-containing vapors (danger of explosion) is avoided by means of specially-developed closed-circuit test equipment with the help of pressure. Optionally, an additional air-conditioning chamber can also be used to generate environmental simulation.
The volume flow of the test medium can vary from 3 to 30 l/min at a pressure of 0.2 to 10 bar (max 12 bar). The load changes are freely programmable with sinusoidal or trapezoidal rise in a test frequency of 0.2 to 1 Hz. The test system can be used to test complete systems as well as individual assemblies made of various plastics, metals and sealants. With the aid of realistic simulation, the weak points in the material composite are precisely determined – for example in the area of a weld seam – and can be optimized early in the development process.

Performance:

• Medium: water – glycol mixture/pure glycol
• Medium temperature control: Refrigeration circuit: + 20 ° C to -40 ° C
  • Cooling capacity up to -30 ° C 5 kW
  • Cooling capacity up to -40 ° C 2 kW
• Medium temperature heating circuit: + 20 ° C to + 140 ° C
  • Heating power: 12 kW
• Flow rate control: 3 to 30 l/min
• Ambient temperatures: -40 ° C to + 140 ° C
• Dynamic pressure changes: 0.2 to 10 bar
• Frequency: 0.2 Hz
• Ramp shape: trapezoid & sine
• Static pressure drop test: up to 12 bar
• With PPM FdrV, any pressure curve up to 12 bar can be programmed