ZIEHL-ABEGG presented the new ZAbluefin radial fan at ISH in Frankfurt.

ZIEHL-ABEGG once again drew the attention of many visitors to bionics at the ISH trade fair in Frankfurt. This time, a sea mammal had provided the template for the new development of a fan. The great trade fair stand therefore also comprised a small movie theatre for “Whale Watching”; whale researcher Dr. Karsten Brensing spoke at the opening ceremony and head-high inflatable whales for the summer holidays were offered as giveaways.

Visitors were particularly interested in the new ZAbluefin fan, which increases efficiencies by up to 15 percent with its highly efficient and unusual impeller design. The engineers from ZIEHL-ABEGG once again thoroughly emphasized their top position in bionics and as a technology leader in fan technology with their new product.

The developers examined the anatomy and characteristics of humpback whales. They were able to successfully transfer the insights gained to the new ZAbluefin radial impeller. Marine biologist Dr. Karsten Brensing spoke at the trade fair opening event at ZIEHL-ABEGG. The proven specialist for whales explained to visitors how the 30-ton marine mammals live and hunt – relying on great agility. In order to enable them to complete migrations of several thousand kilometres with as little energy expenditure as possible, evolution has optimised the animals’ bodies for movement in water.

The new fan generation profits from bionic insights gained from humpback whales.

The front edge of this fan blade has a wavy profile – imitating the golf-ball-sized lumps (proper term: tubercles) on the whale’s fins. This avoids great eddies, reducing flow loss as well as noise. The tail fin of the whale, called the “fluke” was also of interest to the flow technicians. The V-shaped contour of the rear blade section delays possible flow breaks – which makes it possible to use the fan for many different pressure ranges. These bionic insights are now new advantages of ZIEHL-ABEGG’s latest fan generation in the radial area, with sizes starting at 710 mm. The product name ZAbluefin is derived from the term “fin”.

Radial impeller for central air conditioning units and industrial ventilation with unique bionic profiling

The new radial impeller not only has bionic characteristics of the whale but also includes tried and tested bionic elements derived from the owl. The rear edges of the fan blades imitate an owl’s wing. “The owl is the most silent predatory bird and has been used as inspiration for many designs at ZIEHL-ABEGG in the past. Serrated rear edges in fans have become a ZIEHL-ABEGG trade mark. The new fan’s serration has been adjusted and softened, however. With its unique fan and insights from aerodynamics (ornithology) and hydrodynamics (marine biology), ZIEHL-ABEGG has once again put a unique and unparalleled bionic high-tech masterpiece on the market. Read more about the product >> >>

ZIEHL-ABEGG uses bionic insights gained from humpback whales in its new ZAbluefin radial fan, permitting best efficiencies. Whale researcher Dr. Karsten Brensing (left) and chairman of the board Peter Fenkl spoke at the opening event of the ISH in Frankfurt.

The large blue trade fair stand and “Whale Watching” theatre of ZIEHL-ABEGG at ISH drew a great many specialist visitors.