To be able to properly design a fabric based ventilation system, it is important to understand a number of essential parameters and concepts. A fabric based ventilation system is not fundamentally different from conventional ventilation systems, but there are a number of key points where it is important to be extra cautious, such as pressure conditions, pressure loss, pulsations, pressure impact, entrainment, air velocities, and sound.

It is very obvious when a fabric based ventilation system has been designed incorrectly because the ducts will be oval in shape and "sagging" when you look at them. The difference in the static pressure between two parallel ducts may be quite considerable too. This not only has an impact on the aesthetic appearance, but also to a great extent on air distribution. If the pressure distribution is uneven, then this can cause draft problems below and around the duct with high static pressure, while in the opposite case, the air quality will be poor where the static pressure (and therefore the volume of air) is not sufficient.

Further, there may be a risk of pulsations in the fabric material that may damage not only the fabric material but also the suspension material.

Finally, a properly designed TBV system is important as a poor design can impact the noise generated by the system greatly.

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Dialogue & Quotations

KE Fibertec has developed a number of tools and services that our customers can choose to use throughout the entire project process. Our services are graded so that customers can decide themselves which ones they do and do not want. Our opinion is that no two jobs are the same and no solution is standard. Consequently, the documentation and level of detail needs to be adapted to the requirements and specifications of each individual project.

Our service can be split into two categories:

  • Quotation and design
  • Extended project documentation

Our quotation and design processes are described in detail in our ISO 9001 quality assurance system. This ensures that we prepare the basis for the quotation and the quotation itself according to the standardized guidelines, making sure that the customer's requirements are specified and documented in full detail.

KE Fibertec puts a large emphasis on ensuring that the final solution is designed correctly even at the quotation stage. After all, it is not only about ensuring that the fabric based ventilation system works properly, but also, to the same extent, that the customer's indoor climate requirements have been met. This is why we ask about the system's functional requirements and the requirements for the indoor climate at the quotation stage.

All the calculations are proven using our unique software TBV Designer, which is offered to all our customers, regardless of the size of their project and, of course, free of charge.

Of course detailed mounting and maintenance instructions are included. For complicated fabric duct systems we also include AutoCad drawings.

As part of our extended project documentation we offer full-scale measurements in our laboratory, on-site measurements and separately quote CFD simulations.

Did you know?
Fabric ducts are washable and therefore a hygienic solution
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2019 AHR EXPO in Atlanta
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