Comparison of Thermal Sensations Under the Same Conditions in the Climatic Chamber and the Lecture Hall

Kielce Uuniversity of Technology, al. Tysiaclecia P.P.7, 25-314 Kielce, Poland

^* Corresponding author: ldebska@tu.kielce.pl

Abstract

For many people, the feeling of thermal comfort becomes an important aspect of helping to increase concentration at work or study. Creating an appropriate indoor microclimate becomes a huge challenge for many designers of modern construction. The most important assumption of the work is to compare the thermal sensations of a group of four, aged 23 to 30, staying in the lecture class of an intelligent building and in a climatic chamber with the same internal parameters. For this purpose, the Testo 400 environmental meter was used, collecting the necessary parameters from the environment, and specially created surveys describing people's thermal feelings during the study. The air temperature and relative humidity were as follows: 21.7 °C and 30.80 %, while for the climatic chamber the same data was applied, but at the end of the study both parameters increased to 21.9 °C and 40.50 %. Moreover, it turned out that people in the lecture hall felt worse than in the climatic chamber with similar internal values. In addition, the average Thermal Sensation Vote (TSV) response showed that the perceived environment is comfortable for the study group staying in the climatic chamber, as opposed to the feeling of influenza in the room. Unfortunately, the Predicted Mean Vote (PMV) for the room and chamber exceeded the set value described in the ISO 7730 standard.