This paper deals with the velocity of the airflow around human body from the outlet of the desktop personal air-conditioning. That device can provide more high quality air for occupant than other personal air-conditioning system, though the air velocity is always high. CFD simulations aiming at reducing the draft have been made.

For that study, a workstation simulating a typical office desk with desktop-based TAC system was established in a Controlled Environment Chamber. The thermal environment created by different properties of supply air and ambient temperature was measured and analyzed.

This paper gives a sum up of the results of performance testing in an IEQ (indoor environment quality) chamber built in Shanghai Research Institute of Building Science (SRIBS).

For that study, a field survey was carried out in a natural ventilation building in Zhenjiang to analyze the relation between indoor environment, thermal comfort and productivity. Their conclusion is that keeping good indoor air quality may be the best way to maintain the higher productivity in factories.

The indoor air quality and thermal comfort in a high school classroom in Tianjin, China.was studied in order to provide the students a more comfortable environment. 147 of them were chosen to investigate their thermal comfort in naturally ventilated classrooms. At the same time indoor climate parameters were measured. 89 % of the subjects were satisfied about the indoor air thermal environment. The results were compared to those of other similar field studies.

This article explains the requirements of the new European EN 13779 standard (ventilation for non-residential buildings : Performance requirements for ventilation and room air-conditioning systems) compared to the requirements of the previous German DIN standard (DIN 1946 - Part 2 - ventilation of rooms sanitary requirements) which has been replaced by the EN standard.

1 group of 25 persons performed simulated office work for 2 hours in poor environmental conditions with overhead fluorescent lighting, traffic noise, hot temperature, supply air polluted, almost no daylight, and open office noise.The cost to improve each condition was estimated and expressed as a percentage of the total sumA second group experienced all the different conditions and selected the improvements they preferred, up to 50%-budget.Another group was exposed to 100 %-budget conditions. Results and conclusions are presented.

A field study was conducted in Shangaï, China in 200 and 2001 on thermal comfort in non-air-conditioned buildings. Around 1800 office workers answered a questionnaire , and measurements were made simultaneously. The authors explored if it is justifiable f

Human perception of air movement depends , on the one hand , on personal factors such as overall thermal sensation and activity level and on the second hand, on environmental factors including air velocity, air velocity fluctuations and air temperature. In this paper the relation between environmental factors and draught discomfort is described, thanks to the draught model.. The authors have studied several articles to analyse the different factors affecting human perception of air movement.

The influence of cold air distribution on indoor heat environment was studied in this paper. In an air conditioning system, the air-flow rate can be reduced if the temperature of supplied air is lower than traditional, it allows the reduction of energy consumption. A comparison of the experimental measurements with the theoritical analysis was made.