The $500 million 434,000 square-foot, 6-story hospital building houses 262 beds and the adjacent medical ofﬁce building is housed in a 172,000 square-foot, 6-story structure. In order to provide cooling and energy services to the campus, a 3-story, 31,800 square-foot central utility plant was included in the design.
The central utility plant includes three 3,000 GPM cooling towers and one 1,500 GPM cooling tower with the option to upgrade if needed. This hospital is located about 50 to 75 feet from a freeway with all 4 cooling towers facing the thoroughfare, exposing itself to the dusty air and debris. Being a hospital, it is run 24/7, with three 8 hour maintenance shifts.
With the need to ﬁlter contaminants from the water system, designers had originally speciﬁed centrifugal separators with bag ﬁlters as the side stream ﬁltration technology. This technology works by separating particles from water using centrifugal energy and particle mass. The bag ﬁlters were used to ﬁlter small particles with the recovered water returned back to the system.