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2 2023

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Validation of the Fanger Model and Assessment of SBS Symptoms in the Lecture Room

Krawczyk Natalia, Dębska Luiza, Piotrowski Jerzy Z., Honus Stanislav, Majewski Grzegorz

Rocznik Ochrona Środowiska

2023

Tom 25

68--76

The indoor environment of buildings significantly affects the well-being and health of room users. Experiencing thermal discomfort reduces concentration and productivity during study or work, causing drowsiness, fatigue or deterioration in general well-being. The study focuses on presenting the results of the questionnaire study on the symptoms of sick building syndromes (SBS), namely: dizziness, nausea, eye pain and nasal mucosa, experienced by 69 students during a lecture in a large and modern auditorium of Kielce University of Technology. The results show that many students experienced SBS symptoms, which seem to have affected their concentration during the class. The article also discusses the thermal sensations of the students with a focus on comparing the obtained results with the Fanger model of thermal comfort. The discrepancy between the model calculation results and the experimental data has been observed and discussed.

Thermal Comfort Analysis in the Smart Sustainable Building with Correlation Development

Dębska Luiza, Honus Stanislav, Krawczyk Natalia, Orman Łukasz J., Piotrowski Jerzy Z.

Rocznik Ochrona Środowiska

2023

Tom 25

116--127

The paper presents the results of the experimental study of thermal comfort in the smart building of Kielce University of Technology (Poland). The experiments were conducted throughout four seasons of the year and focused on developing a modified thermal comfort correlation that could determine the thermal sensations of room users more accurately than the standard methodology. Twelve groups of volunteers participated in the study, and thermal sensations were analysed for both genders separately. Even though the thermal environment was not considered overwhelmingly favourable (with 75% of men and 60% of women providing positive assessment), thermal acceptability was high. It amounted to 90% (the same for both genders). The air temperature of 22°C proved to be most preferable. The BMI index and CO2 concentration were found to influence thermal sensations and were incorporated into a modified correlation, which provided more accurate results than the original Fanger model of thermal comfort.