Preliminary results of thermal comfort analysis in selected buildings

Abstract

Abstract. The paper analyses thermal comfort in an intelligent building. Intelligent buildings are now widely seen both in Poland and abroad as a result of developments in engineering sciences. However, data on the thermal comfort provided in the buildings are limited. The research described in this paper was carried out in ENERGIS intelligent building of the Kielce University of Technology. The parameters measured included air temperature, relative air humidity, air flow rate and carbon dioxide concentration. Average radiation temperature was determined. The key element was the study of thermal sensation in occupants present at the time of the measurements. The studies were performed in classrooms during the class. The students completed a questionnaire at the beginning and end of the class. The persons present in the classrooms evaluated their thermal sensations using a seven-level thermal comfort scale. The questionnaire included such questions as the type of clothing and the degree of physical activity of the people sitting in the classroom. On the basis of the measurements of classroom microclimate parameters, PMV (Predicted Mean Vote) and PPD (Predicted Percentage Dissatisfied) indices were determined. The responses from the questionnaires provided actual average assessment of thermal sensation and actual percentage of dissatisfied people.

Analysis of Neural Network Training Algorithms for Implementation of the Prescriptive Maintenance Strategy

“…The issues discussed in this article may be of interest to a wide audience using data-driven data analysis methods, including in materials sciences [16][17][18][19], machining [20][21][22], construction of internal combustion engines [23], energy control [24,25], mechanics of solids [27,28], civil engineering [29,30], and even in military equipment development [31,32]. The provided analysis may be used in analogous situations requiring the creation of appropriate predictive approximators [33][34][35] and classifiers [36,37].…”

Lighting conditions as the occupational health related issue – case study

“…Based on the analysis of the available literature, it can be seen that there is very little research related to the intensity of light and the well-being of people in intelligent buildings in Central and Eastern Europe (as opposed to thermal comfort tests in such buildings -e.g. [10,11]. This paper aims to provide information and knowledge whether intelligent buildings meet indoor lighting standards, because people are often dissatisfied with the lighting of their workplaces.…”

APPLICATION OF MACHINE LEARNING in the analysis of surface quality – the detection The Surface Layer DAMAGE of the VEHICLE BODY

“…The subject matter discussed in this article is particularly interesting for the automotive industry [4] and related fields [5], but it should also be useful in all those areas where image analysis and object detection are the basis for the assessment and diagnosis of, e.g. in intelligent building construction [6,7], quality assurance systems [8][9][10], as well as in the surface treatment of materials [11,12]. In the case of research, it is a methodology and tool supporting the observation and ensuring the objectivity of measurements, e.g.…”