Excellent services in hot gas testing combined with innovative technology and state-of-the-art equipment – this is the ATESTEO division CALSIM. Thermal tests of for example complete exhaust systems and elements such as catalytic converters, exhaust heat exchangers, gaskets, silencers, suspensions, pipe elements etc. are carried out on seven fully automated hot gas test benches.
For thermal testing of components or complete exhaust systems, ATESTEO division Calsim offers seven fully automated hot gas test benches. The modular design of these component test benches is suitable for conducting endurance tests and for high complex test requirements. For testing exhaust gas recirculation (EGR) coolers, controlled cooling circuits are installed. In addition, a Clausius-Rankine-cycle for testing waste heat recovery (WHR) components may be added. The working fluids may be demineralised water, ethanol, or special fluids; for example, cyclopentane or acetone.
All test benches are designed such that the performance range of a passenger car to that of a commercial vehicle is covered
800 kW heating capacity
1.300°C hot gas temperature
4,000 kg/h Hot gas mass flow rate
5 bar(rel) hot gas pressure
Processing of orders
After receipt of the specimens, the hot gas test bench is set up ready for operation in close cooperation with the contractor. Subsequent to the successful start-up, an exemplary cycle is measured, the customer releases the start and the test run is started. Supervision of tests is guaranteed 24 hours a day by ATESTEO. During the entire duration of the test, the relevant data are transmitted in the form of updates on weekdays.
Our services in hot gas testing
Thermo cycle test
Thermal shock test
Increased thermal shock test
Time-lapse function (accelerated testing)
Tension measurement using strain gauges
Pressure pulsation test (positive and negative)
Testing of waste heat recovery [WHR] components
Technical data of the hot gas test benches
Burner capacity 20 to 800 kW
Mass flow hot gas 40 to 4,000 kg/h
Temperature hot gas 250 to 1.300°C
Pressure hot gas up to 5 bar (rel)
Mass flow of coolant up to 15 kg/s
Fuel Natural gas, propane, diesel, heating oil EL
More information about our hot gas tests and hot gas generators can be found in our current performance brochure.
Turn-key hot gas test benches
for your component testing
The PLC-controlled hot gas generator F1 produces hot gas for technical test purposes. In particular, the thermal testing of components in the vehicle exhaust system can be conducted in a time- and energy-saving way. The modular set-up enables conducting not only endurance and durability tests, but also turbocharger tests.
Working principle of the hot gas generator
Hot gas is generated by burning a fuel-air mixture. Natural gas, propane, diesel, or heating oil EL may be used as the fuel. The desired hot gas temperature is controlled by adjusting the burner power and mixing in cold air.
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