Upon the completion of construction, the water system is ready to run however, the users may not be ready to run at the time.
Modern modeling software proved to be the tool to identify the entire system operation and determine the best and safest approach..
By maintaining differential pressure at the In this example, all chilled water pumps in CUP are controlled CUP main headers to satisfy each building's demands..
With computer modeling software the day-one load condition can be simulated in detail.
The users who are not ready to operate on day one can be closed in the model, and the different load scenarios can be modeled, such as DP, total flow rate, etc., as needed..
In order to keep the existing buildings chilled water system operation running as usual, Building 6 has to maintain DP at the main branches coming into the building.
By adjusting the control valves at the main branches, with 30% load at day one, extra internal pressure drop needs to be created..
By adjusting the control valves at the main branches, FIGURE 4 with 30% load at day one, extra internal pressure drop needs to be created..
With the simulated partial load, we can predict the flow rate and DP at the main pumps in CUP, so the team can adjust pumps in advance as necessary to accommodate the new building startup.
The prerequesite of the above analysis is to understand model the entire chilled operation, including the sequence of operation, piping and fitting arrangement, equipment, and data, etc.
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