DOI: 10.5593/SGEM2016/B42/S19.047


P. Kapalo, F. Domnita, L. Meciarova
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-64-3 / ISSN 1314-2704, June 28 - July 6, 2016, Book4 Vol. 2, 367-372 pp

Building occupants have a dominant impact on indoor air quality. This paper presents the results of a research about the human activity impact on indoor air quality inside a standard office room. Indoor air temperature, relative humidity and carbon dioxide concentration are measured and recorded in the investigated room during a daily working period. In the same time, the heartbeat rate (pulse) of the occupants is surveyed. During the measurements the investigated room was occupied by different persons regarding the sex, age and weight. Measurements were carried out during a sedentary office work using computer.
The aim of the research was to determine the relationship between the human activities and the analyzed factors. Measurements of respondents’ heartbeat rate were performed in order to investigate the impact of its changes on perceived indoor air quality by human subjects.
This analysis was made to determine the required boundary conditions necessary to define the size of the room and the needed ventilation air flow rate. The main result of this research is the possibility to estimate the air conditioner power, which will have an effect on reducing the energy consumption for fresh air treatment inside buildings, while maintaining the required indoor air quality. The obtained boundary conditions should contribute to ensure a healthy environment for occupants in terms of keeping the building energy efficiency.
The indoor air quality was investigate with measurement devices and the manner in which the occupants were perceiving the indoor environment by a questionnaire that allows, in the final part of the paper, a statistic analysis.

Keywords: indoor air quality, carbon dioxide, temperature, relative humidity, pulse.