The method presented in this paper is called DIAGVENT, it was set up by the CETIAT (Aeraulic and air handling technical center) to provide the professionals a practical tool for the diagnosis of the ventilation installations in residential buildings and offices.
It relates the on-site practice, applying a Swedish experience at different French cases .
Three levels of diagnosis are presented :
Diagvent 1 for the checking of the good achievement of the ventilation installations.

The French car group Peugeot-Citroen has been using for several years the perforated textile ducts at high induction Mix-ind for the heating of its industrial premises.That air diffusion technique uses the blowing air to start the moving of the ambient air at a very low speed.The ambient air inducted around the duct is mixed with the blowing air, so very quickly the temperature of the air inside the premises is homogenized.

This study shows that the removal of combustion products formed during cooking is more efficient in the newer homes than in those studied in the early-to mid-1980s. Realtime measurements were made of CO, CO2, temperature, and water vapor in 74 kitchens in Netherlands. Their inhabitants kept a diary during the measurement period about their cooking and ventilation behaviour, and answered an individual questionnaire too.

In this paper, the authors have studied the oxidation processes on air filter surfaces initiated by ozone. Ozone concentrations were monitored upstream and downstream of used and new filter samples using a small-scale test rig at two different airflows.Test results have shown that the removal of ozone by a loaded filter decreases over time then gets steady. Though necessary, the filtration of ozone creates oxidation processes that are responsible for the generation of products that affect the perceived air quality mainly after periods when the ventilation system is not in operation.

This paper presents the results of an analysis of available scientific findings on how ventilation rate affects work performance. Almost all studies found an increase in performance with higher ventilation rates. The aim was to develop the best possible quantitative relationship between ventilation rate and work performance for use in cost benefit calculations related to building design and operation.

A technique used for the analysis of the contaminant transport in the wake of a bluff body is tested under controlled experimental conditions for application to aerosol transport in a complex furnished room. The authors ' hypothesis is that the dispersion of contaminants in a room is related to the turbulence kinetic energy and length scale. Their approach has been tested both in laboratory and with CFD simulations. Results and conclusions are presented.

In this paper the relationship between air-conditioning energy consumption and the proportion of non-satisfied people in commercial buildings located in Changsha (Hunan Province) is analyzed. Concerning the residentail buildings, the energy consumption and its main influencing factors are discussed too.
The authors think necessary a huge mobilization for everybody takes part into energy saving work.

This paper gives a summary of a detailed CFD (Computational Fluid Dynamics) of the flow around a a Computer Simulated Person (CSP) for the purpose of its validation.

Based on the advanced BIN-method, the annual energy use and the influence factors in an office building in NANJING are analyzed and presented in this paper.Under the climatic condition encountered in NANJING area, energy consumption of air-conditioning is the main energy use in office buildings.The general factors affecting the energy consumption of buildings include the inside design temperature, enclosure structure, people density, light condition, fresh air volume, the ratio of window to wall and shading coefficient.

This paper gives as a posthumous tribute to Walter Dittes, a summary of his thesis prepared at the University of Stuttgart (Germany) .It describes the various air diffusion patterns that can be used (mixing ventilation, displacement ventilation or use of both in different zones), and explains how thermal plumes are treated according to the chosen pattern.A zone model is then described for the prediction of air flows and pollutants transfers between zones within the indoor space.