In building tech­nology, demand for decen­tral­ized resi­den­tial venti­lation systems is increasing with growing envi­ron­mental protec­tion and energy effi­ciency require­ments. The devices installed in the façade are not only suit­able for reno­va­tion work, but are also gaining impor­tance in new build­ings. For push-pull appli­ca­tions, there are now new, energy-effi­­cient fans that impress with their high effi­ciency, pleasant oper­ating noise and compact dimen­sions.»

In the fight against climate change, Swiss company Clime­works is filtering a large amount of carbon dioxide from Iceland’s air with the “Orca” CO₂ suction unit and conveying it into the ground.»

The AxiRev 126 is the new stan­dard for effi­cient push-pull appli­ca­tions in resi­den­tial venti­lation. Tobias Sieger, respon­sible for the venti­lation design and flow simu­la­tion, explains how the reversing fan achieves this.»

According to the so-called F-Gas Regu­la­tion, emis­sions of fluo­ri­nated green­house gases (F-gases) in the EU are to be signif­i­cantly reduced by 2030. It is there­fore essen­tial to switch to natural refrig­er­ants with a low global warming poten­tial (GWP). However, these are often flam­mable. This means that all compo­nents installed in heat pumps, for example, must meet the stan­dards for flam­mable refrig­er­ants. This also applies to the fans used, but these also need to be as quiet and energy-effi­­cient as possible.»

To protect his employees, Michael Braun of the Beck­stein wine­growers’ coop­er­a­tive replaced his old venti­lation system with a new one. The system reli­ably draws dangerous fermen­ta­tion gases outside, while also creating more room and peace for wine produc­tion.»

If there is one thing a super­market does not need, it is reno­va­tion work taking place during the most impor­tant shop­ping season. So it is a relief that ebm-papst found an uncon­ven­tional solu­tion for the cold water system of a South African hyper­market in collab­o­ra­tion with HCM, a refrig­er­a­tion and air condi­tioning company.»

Walter Roller GmbH & Co. began to system­at­i­cally convert their refrig­er­a­tion and air-condi­­tioning equip­ment over to EC tech­nology as early as 2011. Pioneers CEO Wolf­gang Krenn and Product Manager Andreas Binder discuss what drives them, how their customers have reacted, and the role that EC plays for them today.»

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

The Ster­isafe Pro robot system elim­i­nates 99.99 percent of all viruses, bacteria and fungi, and runs on just water and elec­tricity. It uses ozone to disin­fect rooms and surfaces, which can find its way into extremely small gaps and crevices with the use of effi­cient fans.»

In a Danish distillery, it was not only the whisky that reached maximum temper­a­ture in the summer. The subse­quent instal­la­tion of two fans brought cooling for visi­tors and employees.»

When it comes to imple­menting a retrofit, Thomas Häberle are in demand. He plans and directs the retro­fitting busi­ness at Kratschmayer, and explains what one defi­nitely should do – and what not to do.»

Ralf Mühleck, Team Leader, Commer­cial Venti­lation, is an expert in retro­fitted fans at ebm-papst and always knows the right product for any project.»

When cows are happy, they produce more milk. The Vale do Jotuva Farm in southern Brazil works according to this simple prin­ciple. Orde­milk uses ebm-papst fans to ensure the perfect climate in the new high-tech barn.»

Bottling and pack­aging specialist Krones now also offers cooling towers perfectly tailored to its systems. One of the first to benefit from the custom, cost-effec­­tive, and effi­cient solu­tion is the bottling giant Refresco.»

To keep pota­toes deli­cious for a long time, they have to be stored at a constant three degrees Celsius. Stocke Gård Farm relies on a sophis­ti­cated venti­lation system for this.»

Deciding which fan is the most effi­cient, and works at the maximum energy effi­ciency, is not that simple: Fans are complex flow machines that react to every change, including instal­la­tion condi­tions, speed vari­a­tions or pres­sure ratio changes due to filter cont­a­m­i­na­tion. As a result, no fan works at the “best effi­ciency” at all times and in all places. Having said that, centrifugal fans are the better choice for most appli­ca­tions in AHUs.»

The venti­lation system in the Australian Birk­dale Shop­ping Center was nearing end of life. So what do you do to continue to make the purchasing expe­ri­ence of approx­i­mately 2,000 customers per day pleasant? An upgrade was required!»

Axial fans have to meet high demands on venti­lation and air-condi­­tioning equip­ment, because the cold side of the cooling circuit is subject to harsh envi­ron­mental condi­tions. Against this back­ground, ebm-papst has devel­oped a new axial fan series in which AC vari­ants also meet the future ErP require­ments.»

Since cannabis with THC content under one percent was legal­ized in Switzer­land, the sector has been booming. BioCan AG got in on the ground floor of hemp culti­va­tion. Thanks to good venti­lation, its harvest is better than that of its competi­tors.»

Clime­works, a Swiss company, filters carbon dioxide out of the air to contribute to climate protec­tion.»