Kyiv National University of Construction and Architecture (KNUCA)
VENTYLIATSIIA, OSVITLENNIA TA TEPLOHAZOPOSTACHANNIA
scientific and technical collection
This work is licensed under a Creative Commons Attribution 4.0 International License.
V. O. Yehorchenkov, Ph.D., Assistants professor, Kyiv National University of Construction and Architecture, Kyiv, Ukraine, email@example.com, ORCID:000-0003-2910-0331
Estimation of the Efficiency of Building Environment Using Influence of Several Parameters on People, Based on the Point Calculus
Abstract. According to the law of optimum in ecology, each factor has a certain range (the optimum zone), in which a person feels comfort. If the factor values come out of this range, the body is depressed. When designing environment in buildings, it is important that the values of the factors should be as closer as possible to the optimum zone. Therefore, the goal of this paper is developing a comprehensive estimation of the various factors acting on humans. Labour productivity is accepted in this paper as the estimation criterion. The curves of changes in labour productivity from one or another factor were described by point equations. For practical implementation, three factors were taken: temperature and relative humidity of the air in the room, as well as angular height of the light vector. The curves of changes in labour productivity from these factors were combined into one graph. The values of factors in fractions of units from comfort values were plotted along the abscissa axis. This made it possible to determine coefficient of influence of factors relative to each other. For complex estimation, a point set of surfaces of calculated or measured values was formed. Using the formula for coefficient of variation, the average deviation from the comfortable value for each factor was determined. Finally, the average weighted deviation was determined for all the factors being evaluated, taking into account the coefficients of influence. The best solution of the environment in the building corresponds to the minimum of the weighted average criterion.
Key words: law of optimum, comprehensive estimation, labour productivity, point calculation, coefficient of influence, comfortable value