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doi ：

The effect of the opening of the door in displacement ventilation is manifested in a typical office building Zhang Lin, a, . Chowa and. Edifice.

Accepted by the University of Science Tsanga Adivision and Technology, Hong Kong, SAR City, Hong Kong, September 6, 2005;

Corrected 18 October 2005;

Accepted November 9, 2005.

Available online on December 20, 2005.

The purpose of this paper is to investigate the role of the gate position in the performance of displacement ventilation systems using a confirmed computational fluid dynamics simulation. Results are reported based on thermal comfort and indoor air quality. The study focused on a typical Hong Kong office under local upwelling and boundary conditions.

It is found that the presence of large heat sources such as from windows can cause lateral movement of airflow, disrupting the convection on which displacement ventilation systems depend. Doors can create this condition when changing the thermal boundary conditions of the interior space when they are opened. Designers should be made aware of this possibility and make appropriate design decisions for the fact that accommodated.

2。Computational fluid dynamics models.

Boundary conditions. 3。Evaluation Criteria.

Thermal comfort. Indoor air quality (IAQ).

4。Thematic research parameters.

5。About the results.

Discuss. Airflow pattern.

Temperature issuance. The percentage that was predicted was dissatisfied (ppd) and the prophesied was dissatisfied (pd). Carbon dioxide pollutant release.

The average age of the air.

Total volatile organic compounds (TVOC) issuance.

6。Conclusions and recommendations.

7。Further work.

Acknowledgment References.

1。Introduce.

Displacement Ventilation (DV) systems have been proposed in recent years as an option to conventional hybrid Ventilation (DV). The expanding demand for better air quality fuels the need for improved ventilation systems. Improved indoor air quality for the DV system at the outlet was provided by several researchers.

Lin et al. [1] A typical office building was investigated and found to result in superior indoor air quality due to the DV system.

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