Lindab Acoustics Where sound is a science and silence is an off-the-shelf item

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1 lindab we simplify construction Lindab Acoustics Where sound is a science and silence is an off-the-shelf item

2 Everyone has the right to quiet and comfortable indoor climate Decades of research and development in, among other places, our own sound laboratory, has made Lindab experts in acoustics and noise reduction of ventilation systems. A comfortable indoor climate should be a human right! It is better for us, we work better and perform better when the air around us is clean and fresh. The right temperature, an acceptable CO 2 level and the correct humidity are essential. But what about the indoor climate s fourth dimension: Sound? Sound is the indoor climate s fourth dimension We are surrounded by noise and constant disturbance in our everyday life. Silence is becoming a luxury. Therefore, good acoustics and a low noise level are critical to the indoor climate, just as temperature, CO 2 and humidity are. A ventilation system is necessary to ensure a good indoor climate, but it is also a paradox, because such a system is noisy. Fresher air, but more noise. It doesn t have to be like that. We are researching sound and deliver silence If your ventilation system is designed correctly and has the proper dampening you can avoid noise nuisance. Over decades of research and development in our own sound laboratory, Lindab has gained extensive knowledge and experience in acoustics and its important role in open-plan offices, industrial buildings and other places where many people must work and live and be together. We are researching sound to deliver solutions that provide peace and quiet. It completes your ventilation system and makes Lindab your general supplier. 2

3 Lindab s experts research noise reduction and pass on their knowledge and experience when customers have to design and dimension new ventilation systems for new construction and renovation. A good indoor climate is a prerequisite for good working conditions and results. This is especially true in large rooms where many people work at the same time. However, a good indoor climate is more than fresh air at the right temperature, humidity and CO 2 levels. Indoor climate s fourth dimension is sound, and at Lindab, we are experts in minimizing the noise from your ventilation system. Silence can be a prerequisite for optimum sound. 3

4 Keep the noise down and the costs A ventilation system is important to ensure a good indoor climate with fresh air. However, such a system has many noise sources. Noise from fans, dampers and other components must be dampened if the total indoor climate experience is to be comfortable. Here there is a need for silencers to ensure that the acoustics also contribute to the good indoor climate. Less noise and less energy consumption It s about reducing the noise. With the range of products that are the result of Lindab s research and development, you can also reduce your costs and your energy consumption. Pressure loss is an important parameter for the total operating costs of your ventilation system. Therefore, our solutions are generally designed to reduce the pressure loss as much as possible. This applies to ducts, fittings, fixtures and silencers. Silencers for new construction and renovation If, for example, you are renovating an existing system with Lindab Aerodim and keeping the dimensions, you can halve the noise or reduce the pressure loss by up to 40%. At the same time, energy consumption will be considerably lower. It s good for the SFP value and the climate both in the office At Lindab, we update and complement our extensive knowledge of indoor climates and ventilation by listening to them. In reality, we are really working for: our customers. This also puts us in a position to research and develop new solutions based on specific needs. Our research and development in acoustics involves both developing silencers and the materials contained in them. 4

5 Effective Aerodim reduces both dimensions and energy consumption and in the accounting department. Lindab has developed silencers in many different dimensions for both new construction and the renovation of single-family houses, offices and production facilities. A common feature of the solutions is that they reduce both noise and costs. An investment with more return A good ventilation system provides a good climate and it is a wise investment both in terms of health and economy. Healthier and happier employees mean higher production efficiency and effectiveness. With the right products, the solution gives the energy savings that also make it a good energy investment. The dimensions of conventional silencers make it necessary to fit transition joints between the silencer and the duct system to allow for an acceptable pressure drop. With Lindab Aerodim transition joints are not required. Aerodim is significantly smaller than conventional silencers, but just as easy to fit. Aerodim s sound baffles are optimized in terms of pressure loss, so that it is possible to keep the same dimension of silencers as on the other duct system. Aerodim sound baffle The CFD simulation image on the left shows the pressure loss profile for Aerodim with a significantly lower pressure loss than the conventional silencer. Conventional sound baffle The CFD simulation image on the left shows the pressure loss profile of the conventional sound baffle available on the market today. Noise reduction of the ventilation system is a crucial parameter for a complete, healthy indoor climate. Lindab develops and delivers silencers in different dimensions and for all systems. See video clips of CFD simulations at

6 Your low noise solution is our science The speaker room and the reverberation room are connected by a 21 metre long measuring duct. Depending on what has to be tested, the measuring duct can be adapted to be circular or rectangular. There are many possibilities. Lindab is the market leading supplier of a good indoor climate. We have turned it into a science to ensure fresh air in your building. A wide range is not enough It s no good having the market s widest range if every single product is not developed by knowledge and tested scientifically. Back in 1999, Lindab built an advanced sound laboratory that is unique in Europe. Engineers here in our development department are constantly working on optimizing existing solutions and developing new ones that can reduce both the noise level and energy consumption even more. A science in itself The laboratory in Farum, Denmark, is built as a closed duct system. A speaker room and a reverberation are connected by a measuring duct, where we place test objects. The lower floor is an air duct fitted with silencers and a unique design. The noise from the surroundings and, for example, the fans is totally eliminated. This allows us to measure the reduction and noise from the actual product and the test results are scientifically useful. Reverberation room 147-tonne test room, suspended on 32 vibration dampers Unit of measure Test object Unit of measure Speaker Silencer Silencer Silencer Silencer 1 The reverberation room is secured against vibration and noise from the environment. 2 The 147-tonne test room is suspended on 32 pneumatic vibration dampers. 3 The ventilation controls the air flow with great precision. 4 The measurements are so precise that the results can be used scientifically. Measurement method: All silencers are tested in accordance with ISO 7235: Measuring ducted silencers and air-terminal units Insertion loss, flow noise and total pressure loss.

7 The reverberation room has a volume of 203 m³ and weighs 147 tonnes. The room is suspended on 32 pneumatic vibration dampers, so the measurements are not affected by vibrations and therefore noise from the surroundings. The development manager is a professor of ventilation If you are to have the full benefit of the best possible facilities such as Lindab s sound laboratory - it requires the best possible employees. Lindab s Development Manager, Göran Hultmark, is an excellent example. For three decades his research work in the energy sector has led to 16 patents and 20 scientific reports, and now he has crowned his preliminary work with the title of Adjunct Professor of ventilation at SBI / Aalborg University, Copenhagen. In recent years, Göran Hultmark s work in energy systems, energy savings and indoor climates has led to the development of new system solutions for the ventilation of buildings. 7

8 Unique materials special software At Lindab we are constantly working to improve the efficiency of our ventilation solutions and to make it simple for you to implement them in your construction project. Our research and development in acoustics involves both developing silencers and the materials contained in them. Silencers with Lindtec or Acutec are simple and effective Through our research we have developed, among other things, the absorption materials Lindtec and Acutec. Lindtec is a mineral wool and Acutec is a hygienic polyester in a recyclable friendly material that with its excellent damping properties makes our silencers totally unique. Acutec is bacteria resistant and does not bind moisture and condensation, even at high pressure in ducts and silencers. Silencers with both Lindtec and with Acutec have a surface that is easy to clean and maintain. MagiCAD makes design easier Lindab simplifies construction and therefore we of course offer software that helps you with the design. With Lindab s CADventPlugin for MagiCAD you have a well-equipped toolbox for sketching, dimensioning, calculating, counting, ordering and The absorption material in our silencer with Lindtec or with Acutec always has a surface that makes the silencer easy to clean and maintain. 8

9 presentation of complete HVAC systems. The CADventPlugin gives you the possibility in MagiCAD to transfer the product specific project from design to ordering in LindabEshop. Professional sound calculation with DIMsilencer DIMsilencer is a user-friendly programme that provides a quick and professional sound calculation, as well as an easy product selection. The room module in DIMsilencer makes it possible to make sound calculations adapted to the conditions in each room, and you can make a complete system calculation from aggregate to room. Data in DIMsilencer are based on measured values and the programme can be fully integrated with MagiCad. With Lindab s special software you can both design and dimension your complete ventilation solution and make professional sound calculations for each room. 9

10 Own production, wide range and many options LINDAB S PRODUCTION Central production Regional production Lindab manufactures in our own factories in most of Europe. This means that we can respond quickly, effectively and goal-orientated if you need a special solution that is outside our otherwise wide standard range. Your special order can typically put into production the day after the order and delivered a few days later. We call it availability.

11 Standard solutions SLU 50 / SLU 100 SLGU 100 / SLGU 150 SLGPU 100 SDI / SDO BSLCU 50 / BSLCU 100 SLKNU 50 / SLKNU 100 SLFA 25 / SLFA 50 SLF LRCA LRCB KVDP KVDP - 90 K KVDP - 90 L SLRS SLRB LNT We are also experts in difficult solutions LVT At Lindab you will find a complete range of thoroughly tested components for any ventilation solution. Our experienced experts, professional sound laboratory and years of experience guarantee quality. You can see the whole range at lindab.com. If you have special requirements and needs that go beyond the standard range, we can also fulfil them. Thanks to our international expansion, we can quickly and efficiently produce customized solutions across most of Europe..

12 lindab we simplify construction Lindab we simplify construction Lindab simplifies construction by developing and manufacturing quality products and solutions. We will always be our customers preferred supplier of ventilation and construction components, and therefore our work is always based on four keywords: Knowledge, Trust, Range and Availability. This makes us a competent and versatile supplier who always puts the customer s needs and requirements first. At Lindab, all 4400 employees in 32 countries think in terms of order and clarity in all situations. We are down-to-earth and we are always working for our customers success. Lindab A/S