English

Istis normally assumed by designers that all pollutants in a displacement ventilation system follow the buoyant air flow into an upper zone, where they are evacuated. But studies have shown that it is not always true and that concentrations of pollutant particles can be found in the breathing zone. This study aims at designing a ventilation system that will minimize the respirable airborne particle in that breathing zone.

This paper is a review of the techniques and equipment used during the last 20 years, to monitor Particulate Matter personal exposures, microenvironment concentrations and the constituants of sampled particulate matter.

This paper is the first part of a study on indoor emission sources models : 52 models of recent years are overviewed, each one is presented, with its validity, usefulness, limitation and flaw if necessary.

Occupant responsive optimal control is developed for so called smart façade systems. The control optimizes the performance of the system by rotating a motorized louver slat in the cavity and ventilation dampers at the top and bottom of exterior and interi

People that work in office buildings have new needs in terms of comfort within their work place. We suggest to develop a multicriteria office cell façade, allowing to control luminous, thermal and airflow parameters. It will be controlled to offer global

This study compares the contaminant concentration obtained from simple models with contaminant concentration fields obtained from CFD simulations, for various rooms and source configurations. Airflow and contaminant distributions were simulated.

For a long time, scientific research has tried to establish the relationships between jet momentum and room velocities. The final breakthrough is still to come. One approach is to use a kinetic energy balance, which was initially suggested by Elterman (1980). This paper presents a thorough kinetic energy analysis. Based on the analysis, a new method is developed for calculating the average room velocity. The calculation method is evaluated with the experimental date from laboratory experiments with three different air distribution methods.

This paper presents a method to determine the amount of oil residues in HVAC components surfaces. That method has been validated. It appears that the oil concentration of studied HVAC components depends on the technique used for their manufacturing.

An integrated IAQ model has been developed for prediction of Volatile Organic Compounds emission rate of building material and concentration distribution within a material.Experimental data have validated the model predictions. The results of the experiment tallied with the model predictions.

This paper aims at estimating the thermal comfort in environment created by a proposed passive evaporating cooling system. The evaporative effect from water falling along guides is used to produce a reduction in the temperature of the air entering the building.