Pumps and Flow Controls in Large Chilled Water System Startup
For large hydraulic heating and cooling systems, modern computer modeling software can be used to determine the system operation conditions during startup while the system only has a partial load.
Chilled water system expansion for large facilities sometimes can be quite complicated; it may be even more challenging to startup the new subsystem when there is only partial loads at day one.
Upon the completion of construction, the chilled water system is ready to run; however, the users may not be ready to run at the same time, which means we have to start the system in phases. It requires the commissioning team to balance the new subsystem without impacting any other subsystems while also satisfying certain specific criteria, such as minimum velocity.