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IMPELLERS WITH HIGHER EFFICIENCY AND LESS SOUND

IMPELLERS WITH HIGHER EFFICIENCY AND LESS SOUND

Product catalog summary

Introduction
The document introduces the Winder impellers by NOVOVENT, S.A., emphasizing their enhanced efficiency and reduced noise levels. The new generation impeller incorporates the Serrated Novovent Concept (S.N.C.), which combines sickle blades, winglets, and a serrated profile to improve performance and reduce sound levels by approximately 15% compared to traditional impellers.

Research and Development
The R&D process utilizes Computational Fluid Dynamics (CFD) and Finite Element Analysis (FEA) to pre-design units and test mechanical resistance and fluid dynamics. These designs are validated in NOVOVENT's laboratory, equipped to measure noise according to AMCA 300 standards.

General Characteristics
The impellers feature a polypropylene frame reinforced with fiberglass for smaller diameters and galvanized metal for larger ones. They are made of aluminum cast, dynamically balanced, and include epoxy painted grills. The motors are class F with IP 65 protection up to 750W, and IP 55 for others, operating in temperatures from -30°C to 70°C.

Product Variants

Axial Winder: Features hot dip galvanized tubular casing with inspection doors for larger motors. Certified for high-temperature operations.
Axitub Winder and Axitub Piros Winder: Include galvanized metal sheet cabinets with rock wool insulation, suitable for high-temperature applications.
Axi Box Winder and Piros Box Winder: Similar to Axitub variants but with different configurations and certifications.

Performance Data
The document provides detailed performance data for various models, including airflow, power, static pressure, and sound levels. It includes tables and graphs illustrating the efficiency and noise levels across different configurations and sizes.

Conclusion
The Winder impellers offer significant advantages over traditional designs, including improved airflow and reduced noise levels, making them suitable for a wide range of industrial applications.

Overview
The document discusses the performance improvements in fan impellers through design modifications, focusing on airflow, pressure, and noise reduction.

Key Design Features

Sickle Form: Enhances airflow and pressure across the effective curve.
Winglet Addition: Eliminates turbulence at the blade ends, improving performance.
Serrated Profile: Significantly reduces noise caused by turbulence.

Performance Comparison
A graph illustrates that the Winder model, with its advanced design, provides more airflow with less power consumption compared to a conventional fan. The Winder requires a 5.5 kW motor, whereas the conventional fan needs a 7.5 kW motor.

Dimensions
The document provides detailed dimensions for various models, including Axial Winder, Axitub Winder, and Piros Box Winder, specifying measurements for different diameters and configurations.

Contact Information
The document concludes with contact details for Novovent, the company responsible for these innovative ventilation systems.

Catalog excerpts

IMPELLERS WITH HIGHER EFFICIENCY AND LESS SOUND-1

WINDER Impellers with higher efficiency and less sound level

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IMPELLERS WITH HIGHER EFFICIENCY AND LESS SOUND-2

Winder Solutions The last new generation impeller With the Serrated Novovent Concept (S.N.C.), NOVOVENT, S.A. has developed a new blades’ generation. The S.N.C. is the result of three different research lines. Firstly, we get higher performance due to the sickle blades, secondly, due to the winglet applied at the end of the blade we debug turbulences and thirdly, in order to reduce the sound level we designed a serrated profile at the rear of the blades. The S.N.C. blade compared with the traditional ones gets better performance in airflow and pressure; decreasing the power needs and sound levels...

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General characteristics AXIAL WINDER • olypropylene frame reinforced with fiber glass for diameters 560 and 630. For bigger P diameters, the mounting plate is made of galvanized metal sheet, integrated bell mouth. • High efficiency impellers made of aluminum cast according to SERRATED NOVOVENT CONCEPT and MULTIFLOW NOVOVENT SYSTEM, as a high efficiency option, dynamically balanced and closed hub. • All the models include epoxy painted grill. • Motors class F, protection IP 65 up to 750W, others IP 55. • Working temperature: -30°C to 70°C. • Airflow: motor - impeller. AXITUB WINDER and AXITUB...

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Data table CE = Efficiency category: Total VSD = Variable speed drive: NO pe = Power measured at the main input terminals to the motor

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Performance data

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Performance data

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Performance data

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Performance data

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Performance data

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Performance data

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Advantages winder impellers versus traditional ones Better performances with less sound level On this graph, we can be observed the advantages of the winder impellers versus the traditional ones. The sickle form from the blade (A) will enable better performances. If we add to the sickle blade the winglet (B) we will get a high reduction in turbulences. And finally, adding the serrated profile (C) we still increasing the performance and we reduce significantly the sound level. The combination of the winglet, the serrated profile and the sickle form gets a better performance in airflow and pressure,...

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AXITUB WINDER / AXITUB PIROS WINDER ØB PIROS BOX WINDER / AXI BOX WINDER A * Orientative dimensions. innovative ventilation system Josep Finestres, 9 · 08030 BARCELONA · Spain · Tel. +34 93 278 82 77 · Fax +34 93 278 82 67 www.novovent.com · e-mail: [email protected]

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All FNP Group catalogs and technical brochures

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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