Thermal environment assessment in selected Polish educational buildings

Abstract

The paper presents experimental results of a study on indoor thermal environment in selected educational buildings located in the city of Kielce (Poland). The volunteers in the investigated rooms were asked to fill in the anonymous questionnaires containing questions on their thermal sensation, thermal preference and thermal acceptability votes as well as humidity assessment and humidity preference votes. In total, 83 people completed the questionnaires. Simultaneously, the indoor air parameters were measured with a microlimate meter equipped with precision sensors to measure air and globe temperatures, air velocity and relative humidity. The analysis of the obtained results provides information on the subjective assessment of the thermal environment in the considered rooms. It allowed to assess whether the guidelines given in the standard are consistent with the real feeling of comfort of the respondents. Research in the performed scope has shown that the feelings of the respondents and the standard guidelines diverge. It was noticed that that the subjects definitely felt better in the rooms where the temperature was around 22.5°C. The subjects felt worse at the temperature of 25.3°C and the worst of 27.6°C.

Assessment of the Indoor Environment in the Intelligent Building

“…The obtained result showed that the feelings of the respondents according to the predicted average of votes were cooler than the reality. Dębska & Krakowiak [19] examined the perception of thermal comfort by pupils and students in selected three educational buildings in Kielce, Poland. The questionnaires were completed by 83 people in total, and the parameters of the internal environment were measured using a measuring meter.…”

Comparative analysis of thermal comfort in the traditional and smart buildings

“…In the literature review, a lot of research works related to TSV and PMV indicators. However, there is still almost no research (except for studies conducted by the author [3] and the other researchers from Kielce University of Technology [4,5] comparing modern construction with traditional construction. Shin et al [6] analysed the PMV and TSV for CO 2 in the university library, thus proposing a new air-conditioning solution that improves people's thermal sensations.…”

Developing the modified model of thermal comfort

“…It turned out that the conditions required by ISO do not allow the implementation of the classification of the thermal environment. Dębska & Krakowiak [4] examined three educational buildings with different levels of air exchange. The parameters that prevailed during the course were 22.5 o C, 25.3 o C and 27.6 o C. The authors checked the values of PMV and TSV.…”