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Acoustic Solutions

The core of the patented solution dedicated to a wide class of noise pollution problems is a recently invented principle to design and construct Anechoic Broadband Compact (ABC) mufflers. Construction-wise the muffler is simply consisting of a stack of perforated plates separated by thin spacers. The know-how is based on the proper combination of the governing parameters of the construction. When properly designed, the thermal and viscous losses between the plates efficiently absorb the incident noise. The competitive advantage is that the sound absorption coefficient is as high as 99% at 2 Hz- 20kHz, particularly in Ultra low frequencies (below 100 Hz) which is the most difficult noise to be absorbed.

Aeroacoustic noise reduction

Aeroacoustic sound mitigation techniques are vital for addressing the noise challenges posed specially by both airplanes and wind turbines. In the aviation industry, mitigating aircraft noise is essential for minimizing the environmental impact and improving the overall flying experience. The most noise generated by airplanes are ultra-low frequencies (below 100 Hz).

Underwater noise reduction

Underwater noise poses a significant threat to marine life and ecosystems, disrupting communication, navigation, feeding, reproduction, and survival. It can also impact human activities that depend on underwater systems. Marine animals rely heavily on sound for communication, navigation, foraging, and even detecting potential threats.

Heat pump noise reduction

The European heat pump market has been experiencing significant growth in recent years, driven by the increasing demand for energy-efficient and environmentally friendly heating solutions. In 2021, the market witnessed a remarkable milestone, with 2.17 million heat pump units sold across Europe, representing a sales record and indicating a positive trend in the industry.

Transportation industries

Based on the EU strategy of Environmental Noise Directive (END), a range of noise-reduction actions and measures should be implemented by 2030. “Regulation on the Sound Level of Motor Vehicle”, states that, for instance, the maximum sound level of new passenger cars type M1 in 2026 should be no louder than 68 dB(A) (needs 4 dB(A) noise reduction compared to 2016). 

Household appliance noise reduction

Noise Pollution (NP) is the second biggest environmental disease in Europe, (after air pollution), as reported by EHPA and WHO. The most important effect is the loss of sleep. Therefore, acoustic mitigation in household appliances plays a crucial role in enhancing our daily lives. By reducing the noise generated by these appliances, it helps create a more peaceful and comfortable living environment.

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