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As a rule, fans are sized and installed according to maximum ventilation requirements, but maximum ventilation capacity is not always necessary, as the installation of an inverter allows the speed of the fan motor to be controlled to meet actual ventilation needs. Reducing the motor speed reduces the amount of energy needed to power it (up to 8 times), which in turn reduces costs and consequently co2 emissions.

When connected to a sensor system, inverters can be even more effective by controlling motor performance according to any number of predefined settings such as temperature, flow, humidity, etc., eliminating the need for manual adjustment.

How does an inverter work?

Frequency manipulation with an inverter consists of converting the incoming mains voltage from AC to DC using a full-wave rectifier circuit. There is then a second DC link stage that smooths out the waveform and ensures that the inverter remains charged while in use. The final stage involves creating a pulsed square-wave voltage output to simulate an AC waveform as shown below:

Inverters can play a key role in energy-saving projects, but the benefits do not stop there. Reducing the amount of time the motor runs at full speed will not only save energy, but also reduce the strain on the motor itself and any connected components. This means less maintenance requirements and, once again, a reduction in costs. Installing an inverter on an older system that is prone to wear and tear can even help extend its service life.

Discover the entire line of Invertek Drives that can be coupled to a new or existing ventilation system in your company, click here.

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Regulating temperature and air quality in large commercial and industrial spaces can be difficult. Proper ventilation and airflow are essential to help maintain consistent temperatures throughout the space and keep operating costs down.

Fans are commonly used to help cool and ventilate large spaces, but not all fans are up to the job or work effectively. It is therefore important to choose a fan that has been designed for this type of application.

What makes an industrial fan different?

There are two types of fans available on the market today, general purpose fans and industrial fans. At first glance they may seem identical, but there are substantial differences:

Durability: Industrial fans are built to last under heavy and continuous use. General purpose fans, on the other hand, are designed for lighter and/or intermittent use in homes or offices. The difference is in the details. An industrial fan is characterised by stronger materials and bearings, stronger welds and construction, and a more powerful motor, allowing it to last longer and maintain its performance over time.

Size/Capacity: Industrial fans are usually larger, and therefore capable of generating more pressure, with airflows of up to 100,000 m³/h.

Why are larger industrial fans more suitable for large spaces?

Better air flow: It takes up to 34 small conventional fans to do the job of one large industrial fan. The column of air produced is able to move more efficiently around obstacles, distributing the air throughout the space.

Lower energy costs: For the same volume of air, an industrial fan requires much less electricity than a number of small fans, leading to considerable savings.

Quieter working environment: Small fans need a high operating speed and are therefore noisier. A suitably sized industrial fan, on the other hand, can move large volumes of air effectively even at lower speeds, while remaining quiet. The result is greater comfort for employees and improved productivity.

An industrial fan can make a huge difference to your facility's energy bills, safety and productivity. Investing in a quality industrial fan is a value-based decision that will reward you for years to come.

Contact us, one of our consultants will be ready to help you find the most effective solution for your company, click here.

In the relevant markets, the term 'industrial fan' does not have a clear definition and in this article we want to explain what industrial fans are, specifically axial and centrifugal models and their differences.

An axial fan is a fan in which the extracted air is forced to move parallel to the shaft around which the blades rotate. Centrifugal fans, on the other hand, extract air perpendicular to the fan inlet, and spin it towards the outlet due to deflection and centrifugal force. The impeller rotates, allowing air to enter the fan near the shaft and move perpendicularly from the shaft towards the opening in the fan casing.

Axial fans replace the centrifugal fan in certain fields of application from a functional point of view, operating at higher specific speeds with smaller diameters.

An axial fan, with the same flow rate and pressure, has the following differences to a centrifugal fan:

• has a smaller impeller diameter
• has a higher dynamic pressure
• has a significantly higher operating speed
• the peripheral speed is greater
• has lower efficiency and therefore higher energy consumption
• is much louder
• is significantly smaller and lighter, and less expensive

The most significant data in this comparison are weight, operating speed and noise. The operating speed comparison shows that the same flow and pressure characteristics can be obtained from axial fans at higher operating and peripheral speeds than centrifugal fans. Since there is a limit to the stresses in the rotating bodies, and hence to their peripheral speeds, we can safely say that pressures of a certain magnitude are more easily obtained with centrifugal fans than with axial fans.

Axial fans are generally noisier and it is often the case that an axial fan requires the use of silencers to reduce noise, whereas a centrifugal fan would not.

But these negative aspects are countered by a lower weight, less space occupied, a lower cost and the parallelism of the two suction and discharge nozzles, which make it easy to fit into the system, where the axial fan becomes nothing more than a piece of pipe, while the centrifugal fan requires a more complex solution.

Discover the entire line of Meridiana vacuum cleaners and choose the model that best suits your company's needs, click here.

We are pleased to launch the new web platform for a more incisive online communication of our company. The web site is strongly oriented towards the informative richness of our products and the dissemination and development of case studies.  A participatory and informative dialogue that relates the complexity of certain issues and the ability to develop customised solutions.

A close dialogue between our company and the customer, to further strengthen that relationship based on profound transparency and which conveys a message that identifies the desire for a pathway of innovative technologyincreasingly aimed at meeting the needs of a changing market. continuous evolution.