That study aims at characterizing the indoor air quality, mainly in terms of VOCs in nine schools of a littoral urban area in Portugal. Measurements and results are presented.
A general analysis of technologies aiming at improving indoor air quality in Polish schools is described in this paper. A case study shool was selected for the comparison of selected technologies for ventilation system.
In this paper the results of the "Integral Design Methodologyy" workshop for sustainable comfort systems are presented. The objective was to reduce failure costs and to improve design quality for ventilation concepts.
In Korea, "Ondol" a radiant heating system is widely used but it is not satisfying with ventilation, so this study aims at developing a ventilation system to improve thermal environment and ventilation rates.
How the use of ventilation equipment influences humidity and the thermal environment in a bathroom is the aim of this paper. Experiments and analysis show that a difference in ventilation quantity may influence the amount of moisture production.
In order to tally with the demanding requirements placed on compact ventilated units (CVUs), a testing facility has been developed. It is described in this paper.
This paper investigates the ability of intermediate models such as zonal models to predict environmental conditions in a room. The first part compares experimental data to zonal andconventional k-e computational fluid dynamics model predictions in a mixed-ventilation room. Then, in order to investigate the impact of building material moisture adsorption and desorption processes on indoor air humidity and predict humidity distribution in a room, a zonal model was integratedwith a building material moisture transfer model, based on the conservation of energy and dry air and water vapor mass.
This paper presents the discrepancies in applying the power-law model (PLM) for predicting indoor airflow distribution and the methodologies employed to improve this model.First, investigation was made to find an appropriate K value (flow coefficient) for use within the PLM (using the same K value for each cell). Values other than 0.83 were considered, and the result revealed that values other than K = 0.83 could not affect the prediction of the PLM and that K can be given any value, such as 1.0.
For the part 2 of that study, detailed measurements of natural ventilation rate were conducted in a high rise office building in Osaka while twenty natural ventilation openings were kept open. Then natural ventilation rate was calculated for sixteen outside wind directions using wind pressure coefficients obtained by wind tunnel tests. A CFD analysis using the measured data as the boundary condition, reproduced the detailed airflow pattern in the whole office room.
Energy Performance Policy for the Building sector has been recommended by the European Commission in so far it can help in introducing new techniques that will influence the indoor climate. In this paper, the results of an empirical study on database of energy performance calculations from 1996 up to 2001 are used to evaluate the influence of the energy performance policy on the indoor climate in the Netherlands, for example a remarkable shift in ventilation techniques occured.
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