HUMAN AS A PHYSIOLOGICAL SOURCE OF DETERIORATION OF THE AIR QUALITY AND COMFORT CONDITIONS INDOORS

  • Radostina A. Angelova Technical University of Sofia, Department of Textiles, Centre for Research and Design in Human Comfort, Energy and Environment (CERDECEN), Sofia
  • Peter Stankov Technical University of Sofia, Department Hydroaerodynmics and hydraulic machines, Centre for Research and Design in Human Comfort, Energy and Environment (CERDECEN), Sofia
  • Detelin Markov Technical University of Sofia, Department Hydroaerodymaics and hydraulic machines, Centre for Research and Design in Human Comfort, Energy and Environment (CERDECEN), Sofia
  • Rositsa Velichkova Technical University of Sofia, Department Hydroaerodymaics and hydraulic machines, Centre for Research and Design in Human Comfort, Energy and Environment (CERDECEN), Sofia
  • Iskra Simova Technical University of Sofia, Department Hydroaerodynmics and hydraulic machines, Centre for Research and Design in Human Comfort, Energy and Environment (CERDECEN), Sofia

Abstract

It is imperative a model be developed that can assess the difference between the amount of CO2, generated within the human body and the amount of CO2 that is ejected by the body as a function of indoor air parameters. This model would allow the assessment of the amount of the CO2 which is not ejected by the body through exhalation and which have to be neutralized and ejected by the body through other mechanisms or have to be accumulated in the body depots. Currently, there is no experimental data that allows for predicting the amount of CO2, ejected through the blood gas exchange in the lungs as a function of CO2 concentration in the inhaled air. Our study, conducted within the AIRMEN project, aims to research the phenomenology of the human body as a physiological source of the deterioration of both the indoor environment and conditions of comfort and in particular on the indoor air quality. It is based on an experimental investigation of the external result from the human body metabolism and gas exchange in the lungs. The results of this study make it possible to logically define the limits of the permissible CO2 concentration in the indoor air for the different air quality categories indoors.

Published
2019-09-30