A series of experiments were conducted in a thermal chamber room served by displacement ventilation system to investigate the effect of external heat radiation on the vertical temperature profile. The vertical temperature gradient appears clearly dependent on the type of window covers and the specific heat load.

This aim of that study is to evaluate the right time to ventilate and the effectiveness of ventilation for bake-out. A field study has been conducted in residential housing units under different ventilation and heating conditions in order to compare the ventilation strategies for bake-out . Based on the test results, it appears that ventilation during bake-out reduces indoor concentrations of pollutants.

A new mode of ventilation , the intelligent stratum ventilation, where the outlets are located at the side walls at the breathing zone level, is presented in that paper. A CFD study is undertaken and a practical example illustrates this new concept.The results are promising.

The Kroller-Muller museum , since the beginning of Climate installation, suffered the problem of condensation on the glass facades in winter time. A new concept of supply air diffuser was provided. A CFD analysis has been carried out to study and evaluate the performance ot that new system.

Amount of moisture in a bathroom and dressing room has been surveyed in order to clarify the basic unit of moisture and to define a method for moisture measurement. For the authors, the amount of moisture produced is the sum of adhesive moisture, exhausted moisture by ventilation and remaining moisture in the atmosphere.

Both measurements - made in a climate chamber equipped with both underfloor air distribution system (UFAD) and a mixing system (MS) - and numerical results are presented then compared in this paper, in order to investigate the ventilation efficiency and thermal comfort. Influences of supply air temperature and internal heat load density are studied too.

Chemical transformations occur indoors, and primary pollutants may be chemically transformed. The authors have examined how ozone-initiated indoor reactive chemistry is influenced by building materials, ventilation systems and occupant activities. Alternatives to improve IAQ are suggested

A systematic process that analyses the relationship between building layouts and the efficiency of natural ventilation in and around high-rise apartment is demonstrated in that paper. Strategies to improve the quality of indoor/outdoor air environment are suggested.

In that paper , the presentation of a simplified control strategy for naturally ventilated buildings is made. The concept of the "ventilation function" has been introduced. The procedure applied to derive it was illustrated. It is a non dimensional graph that is proposed to perform quick and reliable estimates of the air-change rates provided by natural ventilation for any space.

Developing a device that has indoor ventilation performance through solar heating is the aim of that study. A device using solar radiation as the driving power is proposed , it is composed of shoji paper, a Japanese paper used traditionally in construction (in summer , it is used for ventilation and in winter it heats a cold room by directing the solar heat into it). Thermal insulation and ventilation performance of that device were confirmed by the experiments.