Expertise:Healthcare, Higher Education, Research & Development
Service: Mechanical Design, Electrical Design, Plumbing Design, Construction Administration
Categories:Mechanical Design, Electrical Design, Plumbing Design, Central Plants, Cooling System, Chillers, Cooling Tower, Construction Administration
A.J. Adam Engineering was hired directly by the Owner as the prime consultant to provide engineering design services to upgrade the entire chilled water central plant for this six-story 234,000SF building housing clinical spaces, teaching spaces, and research facilities at a major medical school. The design was comprised of replacing two existing 650 ton water cooled centrifugal chillers with two new magnetic frictionless energy efficient units. Also, the scope included design replacement for two roof-mounted 650 ton counter-flow cooling towers, along with all associated condenser and chilled water pumps. The new design concept is based on a variable primary flow system. The work also included converting the chilled water central plant from a pneumatic to a direct digital control (DDC) system. Other tasks included replacement of miscellaneous equipment and devices such as expansion tank, chemical feed system, air separator, piping, electrical modifications, etc. Major tasks during the design included specifying field assembled chillers due to space limitations, designing a refrigerant containment system for the chillers, and closely coordinating all code requirements with Fire Marshal. Also, new chilled and condenser water pumps were selected and specified so they precisely fit within a confined designated area within the mechanical room. A.J. Adam closely coordinated with the local utility’s energy conservation program to achieve a $250,000 construction cost rebate for the significant anticipated energy savings. In the first year of operations for the new plant, the Owner saved over $300,000 through reduced energy consumption.