Measurements of carbon dioxide concentration and temperature in dormitory rooms in Poland and Spain – a case study

Main parameters of a microclimate that could influence people behaviour and comfort are: temperature, carbon dioxide level, relative humidity, noise and lighting intensity during the day and evening. During analysis of energy efficiency the most important factor is temperature and many researches concentre only on this one, however it is necessary to maintain a proper indoor air quality. In this paper we show results of measurements conducted in selected dormitory areas in Poland and Spain, using an instrument TSI 9565, as a part of the research project "The possibility of the renewable energy sources usage in the context of improving energy efficiency and air quality in buildings and civil constructions". Buildings differed not only in climatic data but also in their construction (heat transfer coefficient values, materials), air change rates (ACH), density of occupation etc. Moreover data obtained during our research was compared with a theoretical model of changes in CO₂ in time. In case of three tested rooms, CO₂ concentration was in a recommended range during all measurement period, while in one house even an initial value was too high. Temperature was found between 19.0°C and 24.4°C.