Ensuring comfort microclimate in the classrooms under condition of the required air exchange
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2018, Vol 5, Issue 10
Abstract
<p>We performed comparative analysis of regulatory documents, which relate to ventilation of school premises and operate in European countries at present. We showed the essential difference of the recommended air exchange values. We assessed sanitary and hygienic conditions formed in classrooms at different efficiency of a ventilation system both by analytical calculations and by subjective monitoring of microclimate of experimental measurements conducted in school classrooms, when every pupil-participant performed an assessment of the internal environment in the form of a questionnaire. We measured carbonic acid gas contents emitted in a room and determined the required ventilation intensity in the evaluated school premises. We compared the multiplication factor of air exchange of the ventilation system determined in this way with the values obtained by analytical calculations carried out in accordance with current legislation and standards, which are active in Europe. We made calculations based on known analytical dependencies. We determined performance of the ventilation system of the classroom based on СО2 concentrations in internal and inflow air at various values of the multiplication factor of air exchange. It made possible to state that we can achieve the optimal microclimate parameters at air exchange of 30 m3/h per person.</p>We presented the results of field studies and analytical calculations in the form of tables and visual graphic dependencies. The proposed research method makes it possible to increase accuracy and reliability of air quality control in classrooms by direct measurement of СО2 concentration in a serviced area of a room. The study results provide an opportunity to improve ventilation systems of school buildings. This creates prerequisites for obtaining a social effect due to an increase in labor and learning efficiency
Authors and Affiliations
Peter Kapalo, Orest Voznyak, Yuriy Yurkevych, Khrystyna Myroniuk, Iryna Sukholova
Keywords
Related Articles
- EP ID EP528216
- DOI 10.15587/1729-4061.2018.143945
- Views 83
- Downloads 0
Chemical deposition of CDS films from ammoniac-thiourea solutions
<p>This paper investigates the process of chemical deposition of CdS films from ammonia-thiourea solutions. It was established that a change in the turbidity of solution occurs in the process of chemical deposition. The...
Construction of a generalized probabilistic-physical model of reliability of a two-level active phased antenna array
<p>A generalized probabilistic-physical model of reliability of a two-level active phased antenna array (APAA) of a multifunctional radar station was presented.</p><p>When constructing the APAA physical model, definition...
Geometrical modeling of the unfolding of spatial rod structures, similar to the four-link pendulum, in weightlessness
<p>We have continued studying geometrical models of unfolding, under conditions of weightlessness, the orbital rod structures whose elements are connected similar to a four-link pendulum [21‒24]. The links of the structu...
The study of multicomponent loading effect on thinwalled structures with bolted connections
<span lang="EN-US">Features of influence of various factors on the stress-strain state of composite thin-walled structures with bolted connection of separate elements were studied on an example of the test problem. As an...
Experimental study of the fluctuations of gas medium parameters as early signs of fire
<p>The results of the experimental study of fluctuations of dynamics of hazardous factors of gaseous medium at early ignition of combustible materials in the chamber, simulating pressurized premises, are presented. The a...