Experimental and numerical VOC concentration field analysis from flooring material in a ventilated roomReport as inadecuate




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1 CSTB - Centre Scientifique et Technique du Bâtiment

Abstract : The aim of this study is to analyse the impact of volatile organic compounds emissions from a solid flooring material on the concentration field in a ventilated room. A field study has been conducted in the CSTB experimental house MARIA. Measurements were performed in a test room recently equipped with a flooring material made of pine wood and under controlled ventilation conditions. α-Pinene was selected as tracer from flooring VOC emissions. Velocity and temperature fields are measured in different points of the room. As the experiment is conducted in a room of a real house, thermal conditions cannot be imposed. However, indoor wall surface temperatures are measured in order to control the stability of boundary conditions during the experiment. α-Pinene concentrations were measured in the test room and in the extract flow. The emissions of the solid flooring material can be calculated from those measurements considering α-pinene as a non reactive compound and steady state conditions. Experiments were conducted for different air flow rates controlled with a mechanical extraction placed on the door of the room. Measured α-pinene concentrations and air velocities have been compared with steady state computional fluid dynamic CFD calculation fields. They show a good agreement. We observed a relatively homogeneous VOC concentration field in the room except in the air flow supply and near the flooring surface where stratification of the tracer occurs.





Author: A. A. Akoua - Bernard Collignan - François Maupetit - Olivier Ramalho -

Source: https://hal.archives-ouvertes.fr/



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