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The fabric of air

Unpacking the advantages of textile air dispersion systems in HVAC. This is Part 1 of a four-part series.

Nico Koegelenberg, managing director of DuctSox.
Nico Koegelenberg, managing director of DuctSox. © RACA Journal

Nico Koegelenberg, managing director of DuctSox, recently shed light on the potential of textile air dispersion systems as a superior alternative to traditional metal ducting and diffusers. His technical talk at SAIRAC Cape Town highlighted significant cost savings, enhanced efficiency and a range of practical benefits that are reshaping how we think about air distribution.

“Textile air dispersion systems offer a 26% energy savings compared to metal ducts, with installation costs reduced by up to 80%,” Koegelenberg states, summarising the core advantages. These systems are proving suitable for a diverse array of applications, from manufacturing and warehousing to aviation, and can handle extreme temperatures ranging from -30°C to 140°C.

One of the most striking advantages Koegelenberg emphasises is the ease and speed of installation. “Especially now with metal prices rising, textiles are getting increasingly more economical, it’s quicker and easier to install, and requires less manpower too,” he explains. This rapid deployment extends to large retail spaces, significantly cutting down on project timelines.

Aesthetics and branding are also a unique selling point. “You can have your own colours and can also brand it,” Koegelenberg notes, offering a level of customisation. Furthermore, textile systems eliminate common frustrations associated with metal: “no scratching and denting.” While acknowledging that textile can tear, he assured that it’s a quick fix.

“One of the key advantages of textile systems is that they arrive factory-balanced, eliminating the need for on-site balancing,” Koegelenberg explains. “Once delivered, the system can be unpacked, suspended and started immediately, significantly streamlining the commissioning process. Provided the initial design data—such as airflow and static pressures—are accurate, the system is essentially guaranteed to perform as intended.”

“Although textile systems are considered a green product, their primary advantage lies in their ability to deliver superior air mixing within a space,” Koegelenberg emphasises. “The key benefit of a textile air dispersion system is that the full length of the system is actively dispersing air. This enhanced air distribution has been validated by an eight-month study conducted at a US university, demonstrating measurable energy savings. You can achieve at least a 26% reduction in energy costs,” he stated. “Because the system reaches its set point much faster, it cycles more efficiently—resulting in significant mechanical energy savings.”

Continued in Part 2…