Improvement and discussion on HVAC system design for a hospital in Fujian

Presents the general situation and air conditioning design parameters of a hospital project in Fujian Province. Elaborates the cold and heat source configuration, air conditioning and ventilation systems of the hospital. Puts forward the schemes of large temperature difference air conditioning chilled water system, different chilled water temperature differences for fan coil units and air handling units and unpurified fan coil units with outdoor air for some consulting rooms to increase the air change rate. Analyses the feasibility of using an open expansion tank to fix the pressure of multiple air conditioning water systems.