Aerodim TM The new aerodynamic silencer reduces sound by half

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1 lindab comfort Aerodim TM The new aerodynamic silencer reduces sound by half

2 An audible difference

3 The sound inside the climate s third dimension A good indoor climate should be a natural part of everyday life. The optimum indoor climate exists when a room has the optimum air humidity and the optimum air temperature. But for most people there is one more thing that determines whether we feel comfortable indoors: sound. Aerodim TM optimises both sound, pressure and dimensions Lindab regards sound as the indoor climate s third dimension because good acoustics and a low noise level are crucial to how we experience the indoor climate. Sound must be sweet music to our ears and not distracting noise that bothers us. A ventilation solution must therefore be more than effective, it must be quiet like Aerodim. Aerodim is a silencer based on a newly developed silencer baffle with an aerodynamic shape that can reduce sound by half. The absorption material in Aerodim is Lindtec, which is easy to clean and fibre-proof.

4 Aerodim TM silencer The CFD simulation image on the left shows the sound pressure profile for the newly developed Aerodim silencer with considerably less pressure loss than the traditional silencer. Traditional silencer The CFD simulation image on the left shows the pressure loss profile for the traditional silencer that is available on the market today. A unique solution With Aerodim you can either reduce the sound by half, achieve 40% less pressure loss or reduce the dimensions of the solution. When you need to dimension new silencers in future, you can reduce the dimensions by using Aerodim with the same pressure loss and silencing as before. Aerodim also ensures low inherent noise which is an added benefit when choosing a silencer. If you renovate an existing duct system with Aerodim and thereby use the same dimensions as before, you can reduce the sound by half or reduce the pressure loss by up to 40%, resulting in considerably lower energy consumption. This means that you can achieve a significantly lower SFP value. Read more about the advantages of Aerodim at We make it easy for you At Lindab we are constantly working to simplify and improve our solutions. Aerodim makes dimensioning and logistics easier than before. Aerodim fits all rectangular ducts, so in future you only need one type of baffle with a thickness of 200 mm. With this thickness and the varying column widths we offer, we now cover the entire range of silencers which previously required a much larger number of variants. At the same time, Aerodim is just as easy to install as Lindab s existing silencers, and it makes cleaning easier. The absorption material in Aerodim consists of Lindtec, mineral wool with a surface that is easy to clean. It is a cleanable, robust material. When you dimension with Aerodim, you can use smaller dimensions and perhaps save the connectors between the silencer and the ducts. It facilitates installation and is more economical. Aerodim is also suitable for equipment rooms where space is at a premium.

5 We test and document your solutions In our advanced sound laboratory in Farum, Denmark, we constantly work to reduce ventilation noise as much as possible. The sound laboratory enables us to conduct full-scale tests for you to ensure correct dimensioning and allow you to create the best possible sound conditions in the room even under very special circumstances. When you implement a solution, you need to be sure that the quality is right. That is why tests and documentation of sound and silencing are important to us when developing new functional products. No job is too small or too big for Lindab. We can help you with very simple products and complex dimensioning jobs to enhance your solution from start to finish. Calculate sound You can, of course, dimension Aerodim using Lindab s IT programs DIMsilencer and CADvent. Using DIMsilencer you can dimension the optimum silencer based on specified requirements. You can quickly do a comparison of different suggested solutions. CADvent gives you access to calculation and dimensioning options where Lindab s ventilation components can be used as an integrated part of the 3D work. The components can be inserted directly in the drawing to ensure that the ventilation diagrams contain the right components from the start. Download the latest version of the programs at In the sound laboratory, the tests are monitored throughout the process. The control panel continuously collects all the measuring results for subsequent processing using the customdesigned software. The reverberant chamber complies with the requirements of ISO 3741 for measuring sound effects from 100 Hz to 10,000 Hz. The sound pressure is measured using a Brüel & Kjær microphone mounted on a rotating bar. The fan accurately controls the amount of air and the speed with which it is led through the system. The fan is located centrally on the lower floor, and both sides are wrapped in a double layer of sound-absorbing materials.

6 We simplify construction