In an era of rising energy prices, concerns about reliance on gas, climate change and environmental taxes, the awareness of the importance of the environment and energy saving has never been higher. Naturally, this trend is not only driven by increased awareness about energy saving, but also as a result of international political activities, which are becoming increasingly stringent. The European legislative framework on the performance of products and buildings is committed to lowering energy consumption by 20% by 2020 and has further suggested increasing energy efficiency by no less than 30% by 2030.
Ventilation systems and air-conditioning appliances are among the five leading users of electricity consumption. Domel followed the trend in making energy savings and, in 2009, commenced with the serial production of EC motors specifically designed for Air Handling Units. These motors adhere to the regulations and directives for motor efficiency requirements issued by the European Commission and guarantee high energy savings and reduced payback time. The products exceed the IE4 (Super Premium efficiency) class and, in accordance with the newly proposed IEC/EN 60034-30-2 standard, also fulfil the criteria for the IE5 (Ultra Premium efficiency) class.
When developing highly efficient motors, we placed considerable emphasis on the optimum use of materials, state-of-the-art technology and long-life operation. The excellence of EC motors is further enhanced by their high capacity and strongly wear-resistant housing, optimal coordination between the motor and controller, and the monitoring of the rotor position without Hall sensors. They require no maintenance since, with the exception of the bearing system, they do not contain any mechanical parts which are susceptible to wear and tear. The motors are highly efficient (up to a level of approx. 96%) and have an excellent power capability. It is worth adding that Domel EC motors are extremely compact with very short bed length.
When purchasing a motor driven system, lifetime costs are of considerable importance. To only compare purchase prices is a false economy which overlooks the considerable financial benefits of the lower operating costs that may be achieved with a more efficient system.
Our motors reduce operating costs by working at very high level of efficiency within a wide speed and power range. If we compare Domel’s EC motor with a standard AC motor in the IE2 efficiency class, our innovative EC motors for air handling units save 62 GWh per year globally, which is 35,000 tons of CO2 or EUR 17 million (these energy savings are calculated by assuming a rate of 4000 h/year and the average EU27 electricity price – source Europe’s Energy Portal (www.energy.eu)).
Besides their low operating costs, the advantages of Domel EC motors are as follows:
- Extremely high efficiency up to 96%.
- Very high efficiency at all operating area.
- Use of non-rare earth magnets (ferrite magnets).
- Robust construction (Ingress Protection 54).
- Highest quality - high life-span and maintenance-free operation.
- Low noise.
- Low weight.
- Compact design.
- Precise speed regulation.
- EC motors are without Hall sensors so the connection between motor and controller is very simple.
- Improved Return On Investment (ROI)…
With its constant focus on development and new technologies, Domel always has something new in mind and continues to be the drive force behind trends.
For further information please visit our website at: Domel EC motors and drives.
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