This powerpoint presentation begins by providing a brief overview of the Coyote Springs Project. Project objectives included the following:
perform surge analysis on Coyote Springs Raw
Water System, resulting from simultaneous
pump trip during power failure; determine whether surge tanks are required,
where to place tanks and size of tank required;
analysis is based on 30% preliminary design; and,
in the future, analysis needs to be refined with availability of
new data. Transient analysis using HAMMER V8 is presented, along with
transient equations for
conservation of momentum and continuity, the
Joukowsky equation,
surge mitigation measures of
selecting appropriate devices for surge mitigation and
sizing of surge tanks, and a
minor comparison of HAMMER V8 and Surge2008.
Presentation conclusions indicate the following: based on HAMMER V8 results, there is a need to install
a 4,200 gallon hydropneumatic surge tank at BPS-2 and
28 additional CAVs; there is a
significant difference between HAMMER V8 and
Surge 2008 results;
however, it is preliminary and requires further investigations to
ensure situation is repeatable in different systems; and, sensitivity analysis is essential as part of a transient
analysis. Includes tables, figures.