TEST FACILITIES

 

One engine test bench is for the sole use of the Chair (250 kW Horiba dynamic brakes) and it is possible to access the other experimental devices. It is possible to conduct tests in steady and non-steady state configuration. This kind of experimental setup is integrated into a test cell equipped with different measuring devices: cylinder pressures, intake and exhaust pressures, temperatures, fuel consumption, etc.

 

The dynamic flow bench is at the Chair's disposal. The advantage of this device is to obtain pressure fluctuations, which are comparable to those observed in an internal combustion engine. The principle of the dynamic flow bench is to create an initial steady flow rate through the tested part and then to interrupt the flow very quickly in approximately 0.5 ms. Pressure waves are then generated and the signals are measured with high frequency sensors.  

The installation makes possible to conduct tests with pressurised hot air. The air source is obtained with two screw compressors (75 kW and 45 kW). The maximum available flow is 1200 Nm3 / hour. The air is then dried and then filtered. A 144 kW electric heater then brings the air to the desired temperature. The installation was used to characterize the tests's different components such as, for example, heat exchangers, turbochargers, etc.

This test bench provides the capacity to test a whole 2 or 4 wheel drive vehicle in dynamic operation. It can be used to replace road tests with reproducible tests in a controlled environment. It can test vehicles with a power output of 260 kW per axle.