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Vibration Isolation of Heat Pumps on Residential Building
Upgrade of Elastomeric Bearings to GERB Spring Elements
Residential buildings are way more sensitive in case of vibrations because of the individual lifestyle and sentiments of each resident. Whereas a certain level of vibration stress is normal in an industrial environment, this does not apply to residential buildings, where people‘s quality of life is severely affected. Disturbing excitations need to be isolated to protect the living environment.
In this case, the vibrations originate from the operation of heat pumps on the roof of a residential building. The initial solution to isolate the vibrations was not successful and made the house uninhabitable. GERB was consulted about the problem in April 2022. After some measurements, a suitable solution was already installed in May.
Challenge
The residential building in Waalwijk NL is equipped with two heat pumps on the roof. The two pumps are mounted on elastomeric
bearings. When the pumps are in operation, strong vibrations occur that affect appartments in the building. The elastomer elements cannot sufficiently reduce the negative effects of the vibrations. As a result, it is not possible to rent out the flats inside. A new elastic support solution is required to reduce vibrations inside the building.
Solution
In cooperation between GERB experts and Mr. Olree from Soundproof Walls, a new bearing on GERB spring elements was calculated. The heat pumps were set up again on the spring elements and new measurements in different rooms were taken. The results showed a reduction of the sound pressure level of 10 dB(A) inside the building. This corresponds to a halving of the perceived loudness and a reduction of the sound power by a factor of 10.
Implementation
Both the sound pressure measurements and the assembly were
carried out by our project partner Mr. Olree. He placed a total of
four spring elements between the machine frame and the support
of the roof. Due to the outdoor installation, the spring elements
were selected in a closed housing variant. For additional securing
of the elements, due to the narrow beam, fastening clamps were
used in addition to the fabric panels.
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Further Resources
You need further information on this topic?
Please do not hesitate to contact us with your individual question.
One of our project engineers will get back to you shortly.
Vibration Isolation of two Heat Pumps on a Residential Building
Upgrade of Elastomeric Bearings to GERB Spring Elements
Residential buildings are way more sensitive in case of vibrations because of the individual lifestyle and sentiments of each resident. Whereas a certain level of vibration stress is normal in an industrial environment, this does not apply to residential buildings, where people‘s quality of life is severely affected. Disturbing excitations need to be isolated to protect the living environment.
In this case, the vibrations originate from the operation of heat pumps on the roof of a residential building. The initial solution to isolate the vibrations was not successful and made the house uninhabitable. GERB was consulted about the problem in April 2022. After some measurements, a suitable solution was already installed in May.
Vibration Isolation of two Heat Pumps on a residential Building
Upgrade of Elastomeric Bearings to GERB Spring Elements
Residential buildings are way more sensitive in case of vibrations because of the individual lifestyle and sentiments of each resident. Whereas a certain level of vibration stress is normal in an industrial environment, this does not apply to residential buildings, where people‘s quality of life is severely affected. Disturbing excitations need to be isolated to protect the living environment.
In this case, the vibrations originate from the operation of heat pumps on the roof of a residential building. The initial solution to isolate the vibrations
was not successful and made the house uninhabitable. GERB was consulted about the problem in April 2022. After some measurements, a
suitable solution was already installed in May.
Challenge
The residential building in Waalwijk NL is equipped with two heat pumps on the roof. The two pumps are mounted on elastomeric bearings. When the pumps are in operation, strong vibrations occur that affect appartments in the building. The elastomer elements cannot sufficiently reduce the negative effects of the vibrations. As a result, it is not possible to rent out the flats inside. A new elastic support solution is required to reduce vibrations inside the building.
Challenge
The residential building in Waalwijk NL is equipped with two heat
pumps on the roof. The two pumps are mounted on elastomeric
bearings. When the pumps are in operation, strong vibrations
occur that affect appartments in the building. The elastomer
elements cannot sufficiently reduce the negative effects of the
vibrations. As a result, it is not possible to rent out the flats inside.
A new elastic support solution is required to reduce vibrations
inside the building.
Solution
In cooperation between GERB experts and Mr. Olree from Soundproof Walls, a new bearing on GERB spring elements was calculated. The heat pumps were set up again on the spring elements and new measurements in different rooms were taken. The results showed a reduction of the sound pressure level of 10 dB(A) inside the building. This corresponds to a halving of the perceived loudness and a reduction of the sound power by a factor of 10.
Solution
In cooperation between GERB experts and Mr. Olree from Soundproof Walls, a new bearing on GERB spring elements was calculated. The heat pumps were set up again on the spring elements and new measurements in different rooms were taken. The results showed a reduction of the sound pressure level of 10 dB(A) inside the building. This corresponds to a halving of the perceived loudness and a reduction of the sound power by a factor of 10.
Implementation
Implementation
Both the sound pressure measurements and the assembly were carried out by our project partner Mr. Olree. He placed a total of
four spring elements between the machine frame and the support of the roof. Due to the outdoor installation, the spring elements were selected in a closed housing variant. For additional securing of the elements, due to the narrow beam, fastening clamps were used in addition to the fabric panels.
Share this post
Share this post
Further Resources
You need further information on this topic?
Please do not hesitate to contact us with your individual question.
One of our project engineers will get back to you shortly.
Further Resources
You need further information on this topic?
Please do not hesitate to contact us with your individual question.
One of our project engineers will get back to you shortly.