This study argues that complaints about thermal discomfort by individuals should not be ignored and can be used to determine the temperature setting for a population in air-conditioned environment. Findings of a new notion of Bayesian adaptive comfort temperature (BACT) of air-conditioning system in humid and subtropical climate as in Hong Kong are reported.

For that study, the air contaminations with VOCs, ozone and ultrafine particle were monitored in the indoor air of a room containing either a laser printer or ink-jet printer. The results confirm that an office or residential printer may be a source of indoor air contamination, with VOCs , particles but also ultrafine particles and other contaminants.

For that paper, the interaction between different ventilation strategies, and the adsorption and desorption of volatile compounds on material surfaces in small test chambers was investigated. Nylon carpet was exposed in test chamber experiments to a mixture of toluene and a-pinene at two different dosing rates. The results and conclusions are presented.

For that study a numerical simulation and experimental measurement of flow and concentration fields in a working fan-filter-unit (FFU) cleanroom has been conducted. The aim was to find out the unsteady concentration distribution of a leaking gas pollutant.The measured data were compared with the numerical results and the agreement was good.

Assessing the relative utility of subjective and objective indicators of perceived comfort of indoor environements was the aim of that paper. Physical environmental variables such as temperature, relative humidity and noise level, were measured in a hospital setting and patients and staff rated their perception of the indoor environment. It appeared with regression analyses that the subjective sensory ratings were better than objective indicators for the prediction of the overall rated indoor comfort.

For that study site-measurements have been carried out in the Shanghai International Gymnastics Stadium. Those measurements included outdoor environment (weather conditions and peripheral hallway), indoor air temperature distribution (occupant zone temperature, radial temperature near upper openings and vertical temperature distributions) and the heat balance of air-conditioning system. The results indicate that according the season, there is a difference in the characteristics on energy saving of upper openings.

The development of an innovative low temperature differential variable air volume fan-coil unit (LTD-VAV FCU) was carried out to improve the defects of VAV and cold air distribution energy-saving technololgies. The experimental results of the prototype are presented along with the authors conclusions.

For that study, supply air temperatures were measured in three duct systems, at the inlet of the duct and close to the point of delivery into the conditioned space with the aim of investigating the effect of increasing the solar reflectance of a duct in order to reduce conduction heat gains through the duct shell and to improve the delivery effectiveness.

The comparison of consumption of heating and of cooling in a building with or without double-skin when the heating and cooling natural strategies are or are not used, according to the level of insulation and to the orientation of the double-skin, is the aim of that study.

In order to help the engineers to have a good idea of the rate of return of variable-air-volume system in different areas of China , an evaluation program has been established by the authors : specific energy models of the primary equipments in HVAC system are established, the evaluation system compared to constant-air-volume system and fan-coil system is expounded.