Abstract
Mechanical ventilation is a key means to improve indoor air quality in shipbuilding industry. Appropriate airflow organization will have a perceptible impact on environmental safety, personnel health, and energy conservation. Many ship painting workshops use fully mixed ventilation, making it difficult to meet indoor pollutant standards and save energy. Therefore, it is necessary to optimal design the airflow organization in the ship painting workshop reasonably. This article introduces three new air supply strategies for ship painting workshops, namely piston flow air supply, attached jet air supply, and side air supply, and compares them with the existing mixed air supply. Three operating scenarios have been established, including isothermal conditions in spring and autumn, cooling condition in summer, and heating condition in winter. The airflow and pollutant distribution of each airflow organization are compared through scale model experiments and numerical simulations. Finally, the most suitable strategy for the workshop in each season is selected and promoted for engineering applications.
Published Version
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