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Ziehl-Abegg presents new "Cpro" fan |
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Monday, 12 March 2007 |
 Following on from the “Owlet” axial fan, whose impeller blade design is based upon the shape of an owl’s wing to boost efficiency and reduce air-flow noise, developers at Ziehl-Abegg AG have now come up with the next sensation, reveals the company in its website. Once again, Ziehl-Abegg looked to Nature and bionics for inspiration, linking the ideal aerodynamic shape of a water droplet with insights gained from the aerospace sector. This resulted in the plastic, high-performance centrifugal fan “Cpro”, which sets new standards in the fan and air conditioning sector in terms of acoustics, efficiency, low weight and simple installation.
Ziehl-Abegg, will present its new “Cpro” fan for the first time at the ISH/Aircontec trade fair, which was held from March 6th to 10th in Frankfurt (Germany).
With its new top-quality product “Cpro”, the successor model to the “C”- impeller series known affectionately as the “blue marvel”, Ziehl-Abegg will be providing – from spring 2007 onwards – an even more powerful, quieter and more efficient product. “Cpro” stands for well-proven and innovative technology: The “C” represents the further development made in the successful “C”- impeller series, while “pro” stands for the brand new profile development for the impeller blades on the high-performance centrifugal fan. To achieve ideal aerodynamics and minimum air resistance, the profile of the Cpro impeller blades is based on the shape of a water droplet, and the wings of the space shuttle. In conjunction with the fan’s sloping trailing edge this results in a significant reduction in noise emissions, both for the fan’s total acoustic power level and it’s rotating sound.
The fan’s previous leading edge has been rounded off on the Cpro, and it now protrudes into the eye of the impeller. Various optimizations serve to cut impact losses, while increasing static pressure, boosting efficiency and providing a more stable characteristic. Developers at Ziel-Abegg have also, once again, refined the rotating diffuser concept, with which the “C”- impellers are equipped. The outlet cross-section has been expanded, resulting in a better conversion of dynamic pressure into static pressure. Because the Cpro is made purely of plastic, structure-borne sound is absorbed to a greater extent than is the case with conventional metallic impellers. The free-running Cpro impeller is available in diameters ranging from 250 to 630 mm to supply air flow volumes of up to roughly 28,000 m³/h at pressures of up to 2500 Pa.
“When one takes all the positive properties into consideration, the new Cpro fan concept exhibits some major advantages, both when compared with our previous “C”-impeller and with the conventional products from our rivals”, explained Peter Fenkl, CEO at Ziehl-Abegg AG, prior to the world premiere of the new high-performance fan at the Aircontec trade fair. “We are certain that the Cpro will become tomorrow’s benchmark in the area of centrifugal fans, in all matters concerning noise reduction, efficiency and energy saving.”
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