Determination of design air volume in ventilation and air conditioning system for underground hydropower station

Summarizes the layout of underground hydropower station and characteristics about ventilation process, and analyses the differences between the ventilation system of underground hydropower station and that of other buildings. Summarizes eight types of air processing schemes, and expounds factors affecting the design air volume. Moreover, deduces the methods for determining the design air volume and air handling equipment cooling capacity corresponding to various air processing schemes and ventilation process. Suggests that a reasonable air processing scheme and design air volume should be selected according to the outdoor inlet air parameters, indoor design parameters and the proportion of heat from different parts in the actual project.