Engineering a quiet future: Addressing noise pollution of Heat Pumps [13]

Heat Pumps are becoming increasingly popular as an alternative to conventional heating systems due to their high energy efficiency. They can contribute to an improved environmental balance, but they also come with challenges.

As Heat Pumps become more common in more densely populated areas, noise pollution for residents also increases. In some regions, an increasing number of complaints is a fact. In Styria (Austria), for example, the creation of a noise register to measure and document noise pollution will soon begin.
The reduction of noise pollution from Heat Pumps can be solved by using efficient vibration decouplers.

In our opinion, it is crucial that Heat Pump manufacturers understand the importance of vibration decoupling and related noise reduction. They need to take it into account in the development and production of their products in order to create a sustainable energy supply that is in line with people's needs.

The presentation will therefore show solutions for vibration decoupling with a focus on the internal compressor. The compressor is disproportionately responsible for vibrations and needs to be vibration decoupled to avoid excitation of the housing and thus reduce the primary airborne noise.
After a short introduction and the physical basics of vibration decoupling, possible solutions from our company will be presented.

Furthermore, the importance of decoupling the entire Heat Pump to avoid vibration immissions into the building and to minimize secondary airborne noise is discussed. The statements are supported by corresponding measurements.

The measurements show that, among other things, a more efficient vibration isolation with polyurethane than with conventional rubber mounts is possible. These findings are significant because they can help reduce noise pollution from Heat Pumps and thus improve the living environment.