The Influence of the Air Temperature on the CO2 Emissions by Occupants Indoors

Abstract

Abstract Data in human physiology have shown that the generation of metabolic CO2 in the temperature interval 18-28 °C could vary only because of the temperature of the environment. Our study investigated the influence of two air temperatures (23 °C and 27 °C) on the CO2 concentration in the classroom. Sixteen volunteers participated in the field study. It was found that the change in the room air temperature from 27 °C to 23 °C provoked a statistically proven change in the CO2 concentration. The air relative humidity also shifts: it increased with the decrement of the room temperature.