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.

This paper reports the design concept and outline of that task ambient air conditioning system with natural ventilation along with the measurement results.

The existing analytical models for the purging of excess buoyancy by displacement and mixing ventilation have been extended to allow the authors the simulation of natural ventilation with time-varying vent areas.The resulting analytic solutions have been applied to a typical office to obtain predictions. Those predictions have then been compared to those based on a constant vent area model .

An experimental study was carried out to articulate the relationship between indoor thermal radiant environment and comfort in naturally ventilated room space is presented. Two identical-shaped wooden buildings were used for the experiment : one with external shading and the other more conventional with lower levels of thermal insulation, heat capacity and solar control. There was a significant difference in the comfort sensation votes. Measurements were made, using the measured data, the authors found a relationship between the radiant exergies and the votes of thermal comfort.