GEOLINKS International Conference 2020, Book 2
GREEN BUILDINGS TECHNOLOGIES AND MATERIALS
NEW EXPERIMENTAL METHOD FOR POLLUTANTS ELIMINATION IN INDOOR ENVIRONMENT BY USING PLANTS
Dipl. Ing. Ondřej Franek, Dipl. Ing. Alexander Kravcov, PhD, Prof. Čeněk Jarský, DrSc., FEng
The present paper deals with pollutants in the building’s indoor environment and possibilities of their elimination, carbon dioxide (CAS 124-38-9), further from volatile organic compounds were investigated trichlorethylene (CAS 79-01-6), toluene (CAS 108-88-3) and benzene (CAS 71-43-2). A new experimental method for effectively reducing the concentration of pollutants in the indoor environment of buildings is presented, which is based on the placement of plants into the research area and has the potential to bring operating costs savings in the field of building ventilation.
The issue is closely related to the increasing requirements for the healthiness of the indoor environment of building. Quality of the indoor environment is also assessed according to the quality of indoor air. Increased concentrations of pollutants in the indoor environment can have a negative impact on the human health for the building’s users. In the paper, the modelling of indoor ventilation is shown, where one model case examines the theoretical quantity requirement of ventilated indoor air without plants and the other model case examines the requirement for the amount of ventilated air in plant environment. For both models cases the same final value of pollutant concentrations was required. After the computational modelling, the results were compared to determine the percentage difference of the supply air demand. Based on the computational model, it was shown that selected plants can favourably influence the pollutant concentration in the indoor environment. The model environment for research was determined as an office area, initial concentrations of pollutants were determined before the arrival of persons, also was determined the constant production of pollutants during working hours, and reduction of pollutants by plants
This is a completely new perspective on the issues of building ventilation and improving the quality of the indoor environment, and according to the achieved calculation, the costs of building operations on a global scale can be significantly reduced.
indoor air quality, volatile organic compounds, carbon dioxide, green buildings, building ventilation