In my note Understanding the pressure profile in open-loop water system, the sketch illustrated a general open-loop water system. In this note, I apply the concept of pressure profile specially to a chilled water systerm. Although a chilled water system is, in fact, a closed-loop, the same principles regarding pressure profiling remain applicable.
This approach demonstrates how to identify the location of the maximum working pressure within the system. Recognizing this point is critical for specifying the appropriate pressure rating of the piping system in the chiller plant.
Figure 1 above shows the pressure profile type 1, y-axis represents head (in meters) and x-axis represent piping location. However, we can plot it in type 2 that y-axis represents piping height (in meters) and x-axis represents head (in meters), as show in cover picture with it associate chilled water diagram.
Furthermore, understanding the pressure profile is beneficial during the Testing, Adjusting, and Balancing (TAB) process carried out as part of the commissioning (Cx) phase.
Related notes:
Pressure profile of condenser water system
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