That study provides data on compared outdoor and indoor concentration levels of ozone and nitrogen oxides in 8 school buildings in France. It also gives information on the parameters that influence the relationship between outdoor and indoor air quality (such as indoor humidity, indoor temperature, building occupancy, airthightness of the building envelope). Results and discussion are presented.
This paper gives the main results of a thesis whose main objective was the comparison of numerical and experimental values of indoor air quality. The tests were carried out at the CSTB . That thesis has permitted to propose an index for the appreciation of the efficiency of the elimination of pollutants.
For that study a mass balanced model is applied to determine area-specific emissions rates in office buildings. Sources of VOCs were identified, put into 3 broad categories and quantified : building materials (23.7 %), ventilation systems (39.0 %) and occupants and their activities (37.3 %) .
This paper sums up the results of a study on the internal partitioning with its effects on the room air quality along with the ventilation performance. Physical tests and numerical modeling for a CFD simulation were used to evaluate different test conditions that employed mixing ventilation from the ceiling.
It is not easy to provide simultaneously thermal comfort, proper air quality, efficient energy consumption to building occupants. In this paper an alternative methodology of real-time determination of optimal indoor air condition for HVAC system to achieve those 3 requirements is presented. A 24 hours operating HVAC system of a single-story building was chosen as a case study.The experiment results obtained with the proposed methodology were better than those from a conventional approach.
In this paper the authors present the results of the European AIRLESS programme whose aim was to identify the pollution sources in air-handling units, and then avoid or eliminate this pollution. The authors propose several energy efficient ways to provide good indoor air and efficient indoor environment conditioning.
The simulation of airflow pattern in an office building in Singapore is based on the environmental conditions and the corresponding ventilation parmeters measured on a typical day. The findings of that study are reported in this paper.
The aim of this study is to clarify the effects of indoor environmental characteristics of hybrid - natural and mechanical - air conditioning systems in office buildings during intermediate seasons. The other objective was to obtain design data.
That research is based on the assumption that there are differences among normal subjects as to their vulnerability to stress-related symptoms to health/illnessThe study aims at increasing the understanding of SBS complaints in relation to personality factors.A relationship between personality characteristics and health-related behaviors, and between personality characteristics and perceived health is demonstrated.
The author asserts that to maintain a good indoor air quality, both ventilation and reduction of the pollutants sources are necessary. Standard 62.2 defines the minimum requirements about ventilation for an acceptable indoor air quality, but does not deal directly with the sources of pollutants. So the author gives an inventory of the main indoor air pollutants and how to cope with them. He maintains that the treatment of the pollutants at their source is very often the best way to keep a good indoor air quality.
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