English

Field tests of a proposed efficient air flow model calibration method were performed on twoclassroom/office buildings. Models developed using CONTAM multizone software were tuned via an iterative procedure that sought to maximize the fraction of correctly predicted interzonal flow directions. Site measurements during a concentrated period of testing, including HVAC air flows, envelope leakage, and site weather data were used to update the multizone models.

Due to high-rise residential buildings and extension of balcony, to resolve discomfort ofindoor-environment and the problem which energy consumption increases, high-riseresidential buildings, coming natural ventilation and decreasing expense of an airconditioningsystem., enable envelope system to be developed.The object of this study is to present the improvement on envelope of high-rise residentialbuildings to reduce heating and cooling load.

Field survey in the M-Office which installed Task/ambient conditioning systems (hereinafterreferred to as the TAC) was conducted in 2005 and 2006. It was intended to investigate theinfluence of the worker's behavior and task-conditioning to workers comfort sensation. Inthis survey, immediately thermal environment and workers behavior were measured, andquestionnaire to occupants who worked as usual were conducted. We found that both activitylevel of occupant and exposed thermal environment is greatly different one by one.

This paper summarizes the current scientific evidence that improved indoor environmentalquality can improve work performance and health. The review indicates that work and schoolwork performance is affected by indoor temperature and ventilation rate. Pollutant source removal can sometimes improve work performance. Based on formal statistical analyses of existing research results, quantitative relationships are provided for the linkages of work performance with indoor temperature and outdoor air ventilation rate.

In this article the authors discussed the issue of how to design a healthy building from three viewpoints : - the importance of an environmental sustainability that contributes to health, productivity and quality of life. - the human influence on healthy indoor air- and ongoing developments in controlling emissions from products and building materials ( low chemical emissions and good fungal resistance).

Ozone removal, concentration of ultrafine particles (2 to 64 nm), and VOCs were measured on sooty ventilation filters. A F8 class filter loaded by diesel soot particles in a motor laboratory and a heavily loaded F5 class filter used for 8 months in a bus service terminal were used in the tests. In addition, both filters were saturated with alphapinene vapor to examine possible formation of secondary aerosols by heterogeneous reactions. Both filters removed ozone effectively in the beginning. Then, the removal efficiency declined until it reached a steady state level in three hours.

This study is in the frame of indoor air quality from the particle pollution point of view and its goal is to determine the particle penetration factor for different common types of leaks which deteriorate the filter capacity of building envelope. The most important parameters for the particle penetration are: the crack geometry, the pressure difference and the particles diameter. CFD numerical simulations have been done for rectangular cracks with 0.2mm and 1mm height for 40mm and 94mm length, also changing the pressure difference between 4Pa and 10Pa.

AIRSECURE project develops a protective solution against airborne threats for airport environment. The development efforts are based on risk analysis, and the developed technologies include high efficiency particle filtration, chemical filtration, detection of aerosol particles and hazardous chemicals

Three different air purifying devices are compared in terms of their influence on indoor air quality. Two systems use ozonisation and ionisation. One system uses ionisation and special filter devices (manufacturer's specifications). In the case of ozone production the perceived intensity and the PD value will increase to inacceptable values. The chemical analyses shows that the increase aldehyde concentration is probably caused by surface reactions between material and ozone.

This paper reviews indoor air quality needs; then it addresses gas phase air cleaning (a little understood, little used in HVAC, high opportunity technology) - particularly by adsorption. Opportunities and limitations are discussed and the capital and energy cost impacts of use are detailed. The role of ventilation/IAQ standards is addressed.