Indoor Ice Rink Arenas
Maximise the energy savings by measuring CO2
There are hundreds of thousands indoor ice rink arenas in the world. The CO2-value varies a lot in the stadium whether it is empty or at maximum capacity during a key match. Return on investment can therefore be expected already in 3 months.
Why measure CO2 in indoor ice arenas?
The value of carbon dioxide in the air in an arena may vary a lot. When the audience is large the value is higher than if it is in an empty stadium. Therefore we have to ventilate.
Without Demand Controlled Ventilation there is a risk to over ventilate which leads to increased warm air into the arena - the consequence being the ice melts. To avoid this, the stadium then has to cool down the ice, which is energy-consuming.
Except for energy saving reasons it is also necessary to ventilate to ensure a healthy indoor environment. Machines in the stadium are polluting the air. “Some of the arenas have compromised air quality because of high concentration level of various pollutants. The concentration level within an ice rink facility depends highly on the fuel type of the ice resurface machine, the frequency of resurfacing, and the degree of ventilation.” This is a health risk to both athletes and spectators.  Based on this, well controlled ventilation also saves money on not having to send people to hospitals for cases of CO2 poisoning or other air quality related illnesses such as asthma.
How does it work?
The CO2 concentration in an arena is varying depending on the number of people in it. An empty arena has a concentration about 400 ppm (normal outdoor concentration). The CO2 concentration in the room will then increase for each added person. Using a system of Demand Controlled Ventilation will therefore guarantee the most efficiency. By having sensors constantly measuring the CO2-value, a signal with the information will be sent to the ventilation system and the system will then adjust the grade of the ventilation to compensate.
Thanks to the reduced need of constant ventilation and the reduced need of cooling the ice, a Demand Controlled Ventilation system helps the ice arena building to save energy. This saves money and is also good for the environment.
Estimated there are hundreds of thousands of indoor ice rink arenas in the world and the savings could be huge.
An owner of an arena that starts using this kind of ventilation can expect a return on investment in around 3 months.
- Energy saving
- Positive environmental impact
- Healthy indoor environment
 https://engineering.purdue.edu/~yanchen/paper/2000-5.pdf 2013-01-22