HVAC system design for reconstruction project of Military Museum of the Chinese People’s Revolution

According to the indoor temperature and humidity control requirements, the underground artifacts collections repositories with high temperature and humidity requirements of this engineering use the constant temperature and humidity air conditioning system, and the comfortable air conditioning systems are used in the exhibition hall, office and their auxiliary rooms. The cold and heat sources are set separately, the collections repositories adopt the water cooling machine with heat recovery, and partial condensation heat recovery is used for reheating. The exhibition hall uses the temperature and humidity independent control air conditioning systems, and the independent outdoor air system uses full heat recovery type outdoor air units. This paper calculates and analyses the heat and moisture loads in the exhibition hall temperature and humidity separation system and the underground collections repositories, and gives the host and end control strategies of the constant temperature and humidity system.