Thinking on HVAC professional acoustic measures in China National Opera House

The China National Opera House requires pure human voice during performances, and the acoustic design standard of the auditorium is NR20, which is higher than the value of the relevant national specifications. This paper describes and analyses the main impacts of acoustic measures on the HVAC design in the project design stage，including the setting of pool and building air conditioning rooms, the setting of orchestra pool air conditioning system, the determination of duct wind speed and the setting of mufflers.