Assessment of the Indoor Environment in the Intelligent Building

Abstract

Currently, thermal comfort and indoor air quality are essential elements in designing modern and intelligent buildings or improving existing ones, so that they would provide proper indoor conditions. The article focuses on the thermal sensations of the students of Kielce University of Technology and determining whether the given parameters of the internal environment contributed to their well-being. 164 people aged 16 - 24 participated in the study, which was conducted with the use of a microclimate meter and questionnaires. It turned out that the temperature range from 19.3 °C – 27.6 °C is acceptable and comfortable for nearly 78% of people. As a result of further analysis, it turned out that the research group definitely prefers and feels better in colder temperatures.

Analysis of indoor environment perceptions in the smart building

“…Recent studies [3] on thermal comfort in a smart building have shown that there is a difference between subjective feelings and actual results. Similar conclusions were observed in the authors [4,5]. There are studies [6] showing that thermal comfort is influenced by the following factors: carbon dioxide concentration and relative humidity, air temperature and volatile organic compounds.…”

“…The measurements carried out confirm the findings in [5] regarding thermal and humidity preferences in smart buildings. It might be related to the conditions of indoor environment caused by proper thermal insulation [15] as well as mechanical ventilation managed by the compute software of BMS and other factors [16 -18].…”

Modeling of indoor thermal comfort in the intelligent building

“…Studies of thermal comfort are conducted with the view of determining the impact of physical parameters of air on thermal comfort and broadening the existing experimental base. Dębska [4] examined the thermal comfort of 164 people in an intelligent building and concluded that the level of comfort might not be high enough. Kolkova et al [5] analysed the impact of the heating control system on thermal sensations of laboratory room users.…”

Sustainable Buildings – Thermal Sensations Case Study

“…An example of such research is the research [1,2] carried out in China, which in the first case showed that students prefer cooler temperatures, with the selected temperature range from about 21 o C to about 27 o C, while in the second case, 90% of people believed that they felt thermal comfort. The intelligent building, which was examined by the authors [3,4], provided information in both cases that it meets the thermal expectations of people because the conditions that prevailed at that time were closest to their expectations of comfort. Other interesting studies concern thermal comfort in tropical climates like Australia [5] where the temperature range, according to the respondents, was from 19 o C to 26 o C, Malaysia and Japan [6] where the best temperature was about 25 o C-26 o C degrees, and Bangladesh [7] in which students identified the temperature of 27 o C as the most neutral in their climate zone.…”