Increase range and safety
Save energy and increase safety with carbon dioxide sensors
Why measure CO2 in cabins?
Cars, subway trains, and airplane cabins are becoming increasingly well-sealed. The CO2 concentration in a vehicle varies depending on the number of people in it. For example, the concentration in a fully occupied cabin, compared to an empty cabin, can quickly become critical. Therefore, we have to ventilate.
High levels of CO2 can cause tiredness and a lack of concentration, which can be dangerous. In the case of a driver falling asleep, the situation quickly becomes serious. It is also necessary to ventilate to ensure a healthy indoor environment in vehicles. Even small cabins can hold many people per m3. Bad air quality also increases the likelihood of catching viruses, bacteria, and other small particulates.
Freon gas and ammonia are the most frequently used refrigerant systems - particularly in cars. However, CO2 is becoming favored as it is non-combustible and is much less harmful to the environment. Of course any gas leakage has to be detected quickly.
How does it work?
An empty vehicle has a concentration of about 400 ppm (normal outdoor concentration). The CO2 concentration in the car, airplane, subway, or train will increase for each person added. Therefore, using a system of Demand Controlled Ventilation is the best choice for high efficiency. Demand Controlled Ventilation means that sensors are measuring the CO2 value constantly and sending a signal to the ventilation system that changes the level of the ventilation to compensate.
Thanks to the reduced need of constant ventilation, a Demand Controlled Ventilation system helps the vehicle save energy. Engineers calculate fuel savings of up to 10%. This is both a financial and environmental saving.
Demand Controlled Ventilation also saves society money based on not having to send people to hospitals for cases of CO2 poisoning or other air quality related illnesses. Less traffic accidents caused by drowsiness also reduces the damage caused to people, roads, buildings, etc.