With three of our Northern Air® – slowly rotating gigantic ceiling fans – the ventilation system in this municipality’s sports facility runs 6 hours less a day.
Thus, our fans secure a significant reduction in the inlet air temperature, a balanced temperature between floor and ceiling, and energy savings. Overall there a huge energy savings to gain in sports facilities.
This municipality, Norddjurs, constantly tests new ways to reduce their energy consumption. One of their focus areas is the energy consumed in sports facilities, where the heating requires a huge amount of energy to maintain a given temperature.
“We typically find it difficult for us to maintain a fixed temperature in our sportshalls. We pump large amounts of hot air into the facility, but still find it difficult to maintain desired temperature levels.”
To maintain the temperature in the hall, a ventilation system supplied the building with hot air in the time period between 6.30am and 12.30pm and again from 16.00 to 22.30, i.e. almost 13 hours a day, which required a lot of energy.
A satisfied Karl Juul says that the municipality strives to maintain a temperature in the hall, where various sports are practiced, at 17.5 degrees. Before they installed the fans, the temperature levels at the floor and at the ceiling were very different, but now they are almost the same, with fluctuations of less than 0.4 degrees, so according to Karl Juul, it looks very promising for the future.
“After installing the ceiling fans, we have now reduced the time the ventilation system is running to only 8 hours a day. At the same time, we have also managed to lower the temperature of the inlet air supply. In the past, we supplied the hall with 37 degree hot air, but now as the fans help increase the floorlevel temperature, we have already lowered the inlet temperature, so here in early January we set the inlet air supply temperature to 24.5 degrees, with an outdoor temperature of plus three celsius degrees. And we are still working to lower it further. All in all, something that has significantly reduced our energy consumption,” says a satisfied Karl Juul.
“I have only words of praise for Nordicco and their giant fans. The collaboration has worked flawlessly from the begin- ning and their systems have fully lived up to our expectations,” says Karl Juul and continues:
“Going into the future, I expect that the ceiling fans will help us to further reduce the consumption of district heating, let us operate with a lower inlet air supply temperature and at the same time reduce our electricity consumption. Not to mention the added benefit of us getting a significantly better indoor climate in the hall.”
Based on his experience, he gladly recommends others who have large premises and facilities with high ceilings to use the slowly rotating ceiling fan to improve heat distribution, gain energy savings and ensure a better indoor climate in sports facilities.
“Here we are on the threshold of winter and the temperature is slowly falling outside, I note that I only need to raise the inlet air supply temperature by 0.5 degrees for every 5 degrees the temperature falls outside, he concludes.”