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How noise pollution is prevented by acoustic louvres

Supplier: Noise Control Engineering
04 November, 2013

Sound travels, and in condenser plants, plant cooling towers, boiler rooms, chemical treatment plants, and power stations, that sound can create considerable noise that will affect surrounding residential and commercial areas.

This noise not only tends to get disruptive but also quite possibly may affect the wellbeing of those who have to work around such areas. Other than requiring concerned personnel to put on proper safety gear and follow safety protocols, these particular areas and buildings need to use the right materials with the right construction to address environmental noise.

For industrial businesses and for buildings that use air-handling systems, the perfect solution comes in the form of acoustic louvres. Louvre panels are used to resolve environmental noise problems. They may come in different forms such as screens, enclosures, and separate barriers. They may also be finished in wide ranging options, from stainless steel to galvanised mild steel and from polyester powder coated to vinyl coated steel. They may also be painted or unpainted and made in the depth, width, and height, according to what is required.

Standard louvre panels come in two types: The R type, which offers optimal noise reduction with normal pressure drop, and the LP type, which offers normal acoustic performance with minimum pressure drop. The louvre blades are generally manufactured with an infill of acoustic fibreglass and covered with the preferred finish. The louvre panels will also feature a perforated splitter underside to provide the utmost sound absorption. The splitter blade may also be configured in such a way to deliver all-out noise reduction in spaces where environmental noise is particularly high.

But while the particular design and characteristics of the louvre panels deliver much needed noise reduction, these acoustic panels are also used for other applications such as for process air intakes, fresh air intakes for ventilation systems, and mechanical equipment screens. So these acoustic panels also assist in ventilation, and where detachable bird screens and insect screens are added, they also provide shielding purposes.

Environmental noise control is a critical element in industrial businesses. With several options for finishes and measurements, the need for noise reduction must figure heavily into the design phase of the acoustic panels, before any manufacturing is done, in order to guarantee maximum acoustic performance. By considering all aspects of noise control as well as factoring in the architectural requirement, the choice for louvre panels will be made much more successfully and the unnecessary costs of refitting installations will be avoided.