Press Releases

Current company information and product innovations compactly presented.

Fans for use in greenhouses

Modern agriculture is unthinkable without greenhouses. They make it possible to harvest crops independently of the seasons. But plants only thrive in them when the air supply and distribution are perfectly regulated. EC fans from ebm-papst are ideal for this task.

AxiCool fans with guide vanes on the outlet side are used for horizontal ventilation. They have white housings to reflect as much of the incident light (important for plant growth) as possible.

If you want a good harvest, you need ideal conditions for the plants to grow. As such, it is crucial to ensure uniform climatic conditions and optimal support for plant photosynthesis throughout the entire greenhouse. There are two ways to achieve this, which can be used together if required: horizontal ventilation to circulate the air above the plants, and tube ventilation from below to supply conditioned air.

An all-round talent based on refrigeration technology
AxiCool axial fans from ebm-papst are used for the horizontal air circulation system – products that were originally designed for use in refrigeration technology. Due to their guide vanes, the fans feature high air throw and enable precise control of the air flow. The fans are mounted on routes in the greenhouse at defined intervals. The housing is white so as to reflect as much sunlight as possible. In order to meet service life requirements, the AxiCool fans have been specifically equipped for use in very humid greenhouses. The plastic components are made from UV-resistant material, which is also easy to clean.

High-pressure axial fans for tube ventilation that supplies the plants with CO2 from below.

A true innovation: ventilation from below
A particularly innovative method is the use of ventilation tubes from below. Energy-efficient, high-pressure centrifugal or axial fans from ebm-papst are used to implement this solution. The usually conditioned air is supplied using a perforated tube. This tube is positioned below the plants, thereby providing an optimal supply of CO2 to the undersides of the leaves. The axial fans draw in air from the greenhouse’s air preparation room and force it into the tube and through the holes past the plants toward the ceiling, where it is then directed back into the intake air flow. The result is a defined circuit of air flow. The fans' excellent performance allows for particularly long tubes, which can be used in large greenhouse installations, for example.

Energy saving made easy
The fans for both methods are powered by energy-saving EC motors. The efficiency of these motors far exceeds the requirements of efficiency class IE4. With this solution, ebm-papst is further expanding the potential applications of its EC technology.

FanGrid Solutions for High Air Performance

ebm-papst now offers FanGrid modules with RadiPac centrifugal fans with automatic resonance detection for more operating reliability.

To achieve high air performance in ventilation technology, several smaller fans are combined to create a FanGrid. ebm-papst now has FanGrid modules with RadiPac centrifugal fans in its product range – with automatic resonance detection for more operating reliability.

Many applications require high air performance. Data centers, large industrial building complexes, hotels, residential complexes and hospitals are all typical examples.

Cubes prevent installation loss
At ebm-papst, fans for a FanGrid are installed in a support structure. The cube has extra-generous dimensions to prevent the undesirable installation loss that arises when fans are positioned too close together and can influence each other.

Automatic resonance detection for more operating reliability
Depending on the installation situation, resonance can cause vibrations within specific speed ranges. Such vibrations can damage the bearing system of electric motors and lead to fan failure. This is why ebm-papst has developed automatic resonance detection that minimizes the effects of vibration – vibration velocity – for its RadiPac centrifugal fans.

Energy-efficient EC technology with convenient closed-loop control
The driving force behind the fans installed in the fan grid are modern EC motors, which are highly energy efficient in both full- and partial-load operation. The FanGrid line is rounded out by a new controller that easily activates fans operated in parallel. It requires minimal wiring work. ebm-papst FanGrid modules are available as plug & play-compatible units or as complete kits consisting of the fans, air inlet grill, support plate, corner connectors and spacer profiles for direct installation on site.

Smaller, lighter, better: FanGrid
In practice, FanGrids have many benefits. The individual fans can be arranged next to or above each other to save space. They significantly improve air distribution and ensure a more even airflow through upstream or downstream components such as filters or heat exchangers. Their redundancy also increases operating reliability, since the other fans compensate for missing air performance. The relevant redundancy requirements can be taken into account during the selection process.

Compact external-rotor fans turn up the pressure

Now RadiPac centrifugal fans are also available for high pressures up to 2,500 pascals.

When the air needed for air conditioning and ventilation is moved over long distances, the fans being used have to work at high pressure to ensure that the required amount of air is delivered in spite of back pressure. ebm-papst has specially adapted its RadiPac centrifugal fan to meet these requirements.

Narrower impeller for more pressure
The impeller has been aerodynamically optimized and the blade outlet width narrowed to enable the higher speeds that result in higher pressure. The new RadiPac are designed for high outlet pressures of up to 2,500 pascals and, depending on their size, enable flow rates of up to approximately 15,000 m³/h.

Space-saving external rotor design
The proven external rotor design has been retained, so the high-pressure models are also axially compact and require little space for installation. The fans are driven by high-efficiency GreenTech EC motors, which can be flexibly controlled and intelligently interconnected. Plug & play is no problem thanks to simple connections and commissioning.

High-pressure fans
There are many situations in which fans have to work at high pressure, including complex air distribution networks or air ducts that have to fit in tight false ceilings and naturally need to have small cross sections. This is also the case for air handling units (AHUs) in airports when incoming air passes through an activated carbon filter to minimize pollutant levels. Steam and droplet separators with many pipe bends also cause high pressure losses and call for corresponding performance from the fans used in them.

Expanded portfolio
ebm-papst has expanded its product portfolio, now supplying reliable centrifugal fans with proven EC external rotor design for applications that have to overcome high pressures to achieve optimum air flow. Sizes 630, 560, 400 and 355 are available now.

AxiBlade sets benchmark – expansion of the product range

The AxiBlade range from ebm-papst will be expanded to include additional fans in smaller sizes.

Axial fans, which are used in air-conditioning and refrigeration systems such as evaporators, condensers, and heat pumps, must fulfill high requirements with regard to air flow, energy efficiency, and noise. The motor and fan specialist ebm-papst has already set a new benchmark here with the launch of the AxiBlade product range. Now this successful product range will be expanded to include additional fans in smaller sizes.

Modular design
With the AxiBlade fans, which were developed in the sizes 630 and 710, the impellers are made of a composite material with profiled blade geometry and winglets for maximum efficiency. The impellers are designed for different motors with which they can be combined. The sturdy guard grills are optimized according to aerodynamic criteria. The robust sheet metal ring with corrosion-resistant paint contributes to the fans’ greater overall stability. The first variants of the AxiBlade fans with impeller diameters 630 and 710 will be available in March, after the ISH 2019 trade show. By the end of the year, these AxiBlade fans with additional motor variants will be available in both EC technology and AC technology. Therefore, the new fans can handle air flows up to 25,000 m³/h, with a maximum pressure range of up to 450 Pa.

Plug & play design
Thanks to their plug & play design, these fans can be connected easily and their identical installation dimensions enable a like for like replacement of previous fans in the customer's device. The flat design of the AxiBlade fans can prove beneficial when transporting customer devices.

ErP Directive compliant
AxiBlade axial fans operate in a wide variety of applications with a static efficiency of up to 53%. Depending on how they are installed, the noise level can also be reduced by up to 4 dB(A) as compared to the previous product range. With regard to efficiency, all AxiBlade fans exceed the current ErP requirements and they are therefore a future-proof choice.

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