Economical EC fans for barn ventilation
Conversion from AC to energy-saving EC fans
The Momeyer brothers near Celle monitored their energy consumption for months and discovered that ventilating their pig farm with AC fans caused excessive costs. They therefore opted to retrofit their ventilation system with EC fans from ebm-papst. To implement this technically, the brothers looked for a competent partner. They finally found one in Heinrich Dönselmann-Theile from hdt Anlagenbau.
Remote monitoring for barn ventilation
The output of the EC fans used can be controlled by software and their status can be conveniently monitored at any time via PC or smartphone. Replacing the fans was worthwhile for the Momeyers – indeed the forecast energy savings were even exceeded. Instead of 35%, savings were already over 50% after six months. This saves over 15,000 kWh per year, which at an electricity price of €0.30/kWh amounts to a total of €4,500.
To save energy, the fans only run at 80 percent of their output. It is only during extreme weather, for example when it is over 38 degrees outside, that the software activates the remaining 20 percent, thereby ensuring a consistently pleasant climate in the barn.
The Electronically Commutated (EC) motor is a permanently excited synchronous motor operated with power electronics. This enables any operating speeds to be achieved regardless of the mains frequency used.
Power electronics integrated into EC motors allow their speed to be adjusted as required via a 0-10 V control signal or MODBUS RTU interface. This ensures that a high degree of efficiency is maintained even in partial-load operation. Switching from conventional AC to EC technology is particularly worthwhile for devices with a long duty cycle, as the savings in energy expenses mean that the cost of converting can be recovered within a short period.
When using the Modbus RTU interface, numerous operating parameters can also be queried and monitored in ongoing operation alongside the control signals. If necessary, the operator of a system can quickly adjust operating parameters in order to react promptly to changing requirements. Simultaneously recording operating hours facilitates preventive maintenance for effective minimization of servicing time.
ebm-papst Southeast Asia Press Contact
Marketing & Communications Manager
ebm-papst SEA Pte. Ptd.
10 Changi South Street 2
The ebm-papst Group, a family-owned company in Mulfingen, Germany, is the world market leader in fans and drives. Founded in 1963, the technology leader with its core competences motor technology, electronics and aerodynamics, has set international market standards ever since. With over 20,000 products, ebm-papst offers customized, energy-efficient and intelligent solutions for virtually any ventilation and drive technology requirements.
In fiscal year 2019/20, the hidden champion achieved a turnover of 2.188 billion euros and employed almost 15,000 people in 29 production sites (e.g. in Germany, China and the US) as well as in 48 sales locations. With their fan and drive solutions, ebm-papst defines and sets the benchmark in practically all industries, such as ventilation, air-conditioning and refrigeration, heating, automotive, IT, mechanical engineering, catering and household appliances, intralogistics and medical engineering.
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