A completely new laboratory was set up at the Energy Efficient Building Unit last year. A state-of-the-art ventilation and compact appliance test bench enables ventilation appliances, air-to-air heat pumps, small air-to-water heat pumps and compact appliances to be measured and optimised experimentally.
The following appliance types can be developed, measured and optimised in the new laboratory:
- Ventilation units up to 600 m³/h
- Exhaust air-air heat pumps up to 5 kW
- Air-to-air heat pumps up to 5 kW
- Air-to-water heat pumps up to 5 kW
- Compact units
The laboratory is fully compatible with the Hardware in the Loop (HiL) solution developed at the workspace. With Hardware in the Loop, a device can be tested dynamically. The complete behaviour of the building is simulated by computer software and the device (e.g. ventilation unit or heat pump) is actually operated in the laboratory (including its control).
One focus in the development of the laboratory was the realisation of very high requirements regarding the accuracy and reproducibility of the results. Especially in the case of development and optimisation, it must be possible to measure even the smallest optimisation potential in a comprehensible and repeatable manner. For this reason, the requirements for the accuracy of the sensors used (temperature, humidity, volume flow) are well below the limit values specified in the standards. Maintaining a constant temperature on the source side is an important parameter. Here, too, we were able to significantly exceed the normative requirements.
The test bench is currently being used in the two research projects k-WP and SaLüH!.
Take a look at our new laboratory for yourself:
