The aim of this research was to investigate the flow pattern around a test room which is used for natural ventilation studies. The test cell effectively represents an in-fill development of a low-rise building located adjacent to high-rise buildings. When considering natural ventilation in a building in such a location it is beneficial to understand the local wind flow patterns resulting from the impact of the surrounding buildings on the prevailing wind conditions.
Local exhaust ventilation systems are normally the most cost efficient method for controlling air pollutants and excessive heat. For many manual operations, capturing pollutants at or near their source is the only way to insure compliance with threshold limit values in the workers breathing zone. Local exhaust ventilation optimize ventilation airflow thus optimizing system costs especially where recirculation is not used.
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