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Thermal shocks
Thermal shock resistance test in a temperature chamber
Cold water thermal shocks – Water splash tests
Technical parameters:
- Air temperature inside the chamber: min. -40 ± 1°C,
- Liquid temperature: up to 180°C,
- Liquid flow rate: from 0,5 to 10 l/min,
- liquid: glycol/aqueous solutions,
- number of test objects: from 1 to 2.
Legend:
- – temperature chamber
- – radiator
- – heater
- – valves
- – pump
Tests of resistance to thermal shocks in a shock chamber (cyclic action of air)
Climats shock chamber
he shock chamber is designed to expose test samples to thermal shocks. Accurate simulations in accordance with standards (including defense standards) are possible. The shock test in the device is carried out by means of an automatically controlled elevator moving between chambers at two extreme temperatures: high and low. The device is a horizontal chamber, i.e. the working chambers are located side by side.
The shock chamber makes it possible to test the resistance of parts and devices to rapid temperature changes (i.e. thermal shocks).
Testing (PCA accredited range) according to the following norms:
- PN-EN 60068-2-14
- PN-EN 60068-2-1
- PN-EN 60068-2-2
- VW 80000 (K-16)
- GS 95024-3-1 (K-05)
- Others (within the technical capabilities of the chamber)
Basic technical parameters:
- Temperature range: from -70 to 180 °C
- Travel plane of the basket: horizontal
- Basket capacity: 512 l
- Dimensions of the basket: (80 x 80 x 80) cm
- Max. basket load: 80 kg
- Max. transition time: 10 s
Cold water thermal shocks – Water splash tests
Testing resistance to thermal shocks caused by cold water – Water splash tests
Test description:
The test aims to simulate the cyclic splashing of heated up elements with cold water.
Examples of test objects:
Engine cooling modules, lamps, solenoid valves, wiring/tubing bundles and others.
In addition, we provide glycol or oil circulation to the test objects, as well as electric cycles (if required).
Splash test chamber – test bench technical parameters:
- chamber operating temperature range: 30 – 170°C,
- water temperature range: 0 – 20°C,
- dimensions of the workspace: W x H x D = 1500 x 1180 x 1250 mm,
- nozzle speed (with cold water): 1 – 25 cm/s,
- water flow: up to 60 l/min,
- possibility of using water-dust mixtures.
Thermovision camera analysis of a heat exchanger during testing: resistance to cold water thermal shocks – water splash test
Thermal shocks – air
Thermal shocks (air) of intercoolers
Technical parameters (examples)
- Operating pressure: up to 5 bar
- Air temperature (hot phase): up to 250°C
- Air temperature (cold phase): down to -30°C
- Air flow: up to 0,4 kg/ s
- Cycle time: 2-20 min (or other times)
- Cooling air flow: up to 5m/s
Thermal shocks (air) of WCCACs (Water cooled charge air coolers)
For WCCACs (water cooled charge air coolers) – additional temperature controlled water/coolant circuit available.
Thermal shocks of exhaust gas recirculation (EGR) systems & exhaust systems
Technical parameters (examples)
- Operating pressure: up to 5 bar
- Air flow: up to 100 kg/h
- Air temperature (hot phase): up to 750°C
- Air temperature (cold phase): up to 100°C
- Cycle time: 0,5-5 min (or other times)
Thermal shocks – glycol, water
Thermal shock test (glycol) where the LT zone is immersed in the coolant
Technical parameters
- Temperature: from -30°C to 120°C
- Flow rate: up to 5 000 l/h
- Pressure: up to 3 bar
Testing of thermal shocks (glycol) in a cold thermal chamber
Testing of thermal shocks (glycol, water) at ambient temperature
Technical parameters
- Coolant flow (60% glycol): 0-5000 l/h (use of OEM coolant possible)
- Working pressure: 0-3 bar
- Air temperature: ambient
- Temperature range: 20-150°C
- Cycle time: 1-12 min
- Tmin/Tmax: -25/120 (150)°C
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