Xu, Chen (2003-05). Hydraulic Modeling of Large District Cooling Systems for Master Planning Purposes. Master's Thesis.
District Cooling Systems (DCS) have been widely applied in large institutions such
as universities, government facilities, commercial districts, airports, etc. The hydraulic
system of a large DCS can be complicated. They often stem from an original design that
has had extensive additions and deletions over time. Expanding or retrofitting such a
system involves large capital investment. Consideration of future expansion is often
required. Therefore, a thorough study of the whole system at the planning phase is
crucial. An effective hydraulic model for the existing DCS will become a powerful
analysis tool for this purpose. Engineers can use the model to explore alternative system
configurations to find an optimal way of accommodating the DCS hydraulic system to
the planned future unit.
This thesis presents the first complete procedure for the use of commercial
simulation software to construct the hydraulic model for a large District Cooling System
(DCS). A model for one of the largest DCS hydraulic systems in the United States has
been developed based on this procedure and has been successfully utilized to assist its
master planning study.