The conflict between the quality of subway environment and energy consumption is becoming more and more serious. For that study, the subway thermal environment simulation software (STESS) has been used for the simulation and prediction of the long-term (month by month) and short term (hour by hour) changes in subway thermal environment.
The relationship between ventilation scheme, thermal simulation scheme with the air conditioning load of each station and the whole year energy consumption of the full line is specially discussed in this paper.

General information about legionella and legionellosis are first given. Authors then mention techniques and methods of prevention to avoid the increase and spread of legionella in air conditioning and ventilation systems.They include preventive measures such as correct design of the system allowing regular inspection, maintenance and cleaning, as well as methods of anti-bacterial control in ventilation systems.

This paper presents a summary based on 3 articles published in 2005 by the authors about the quantitative influence of indoor climate on productivity.Illness or sick leave prevalence vs. ventilation rate is shown from a model taking into account particles in indoor air. Results are compared with those of other bibliographical sources.Results also concern workers performance as a function of ventilation rate, perceived air quality or indoor temperature.Other date are mentioned about the relationship between sick building syndrome symptoms on occupants performance.

Axial fan ventilation system has been investigated in an automative parts factory, during summer. 54 axial were installed on ceiling. For the estimation of the improvement of working environment of the automotive parts manufacturing factory with the axial fan, the distribution of air velocity and temperature are investigated by experimental method. Besides, the surface temperature of the ceiling and windows is measured by thermal camera to investigate the thermal stratification.

For that study, four ventilation strategies have been evaluated in a typical bedroom in a residential building in Singapore : night-time ventilation only, daytime ventilation only, full day ventilation and no ventilation. The impacts of facade on indoor thermal environment have been analyzed too. The results are presented.

This paper demonstrates the potential of using CFD for modelling buoyancy-driven displacement ventilation in complex building structures and also the accuracy that can be expected from that use.

This paper presents a numerical method to predict the actual cooling load provided by the underfloor air distribution system (UFAD), therefore the energy consumption can be achieved.

A good performance of air diffuser is essential for an efficient ventilation and thermal comfort. Because of the Coanda effect and the influence of buoyancy, conventional diffusers cannot introduce effectively the warm air into the occupied zone in winter. So, thermodynamic diffusers have been designed to solve that problem. Both experimental and numerical models have been built, and their performances have been compared with the conventional ones.

That study aims at improving thermal comfort in the carriage of a new developed high-speed train. To figure out the air distribution pattern a CFD method is used and a prototype experiment validates the method.

The authors have tested a combined system of chilled ceiling, displacement ventilation and dessicant dehumidification. Each part is analyzed with its advantages and shortcomings. It appears that the combination of the three parts are consistent on cooling source demand and complementary on indoor comfort.
Their conclusion is that a better Comfort, IAQ and energy saving can be achieved with the association of the three technologies.