At any time, our department is engaged in a variety of projects that focus on identifying and addressing system deficiencies, increasing overall efficiency, and expanding our infrastructure and production to deal with growing campus demand.
Installation of Georgetown’s Thermal Storage Tank
Thermal Storage Tank
Under the lowest level of the parking garage beneath the Leavey Center lies a storage reservoir 200′ long, 60′ wide, and 24′ deep. Placed into service in 1986, it holds approximately 2.2 million gallons of chilled water. The tank is reinforced concrete connected by piping manifolds to the University’s pipe system. One manifold is a foot below the surface of the water and the other a foot off the bottom. These manifolds are connected to each other with a system of valves and a 4,000 gallon per minute remotely-operated pump. The tank is charged by the chillers at night, when campus cooling demand dips. Sensors throughout the tank allow us to see the water temperature at every level. Pumping 40° chilled water into the tank allows for a pool of about 42° water. To draw from the tank, tank water is pumped to join the chilled water pumping out to campus from the Central Plant. The thermal storage tank can deliver about 1,000 tons of cooling, over about eight to ten hours, before it needs to be replenished. The tank is drawn from during the daytime and mainly in summer, in order to supplement chiller capacity when cooling demands peak.
VFDs for the Central Plant
Many of the old motors in the Central Plant operate at full speed when connected to normal utility power. This requires us to use more energy than might be required for daily operations. By installing variable frequency drives (VFDs) on these motors, we are able to select the specific motor speed we need for operations. This helps us save energy and reduce wasted resources.
Smart Meter Technology
Georgetown owns and maintains a 13,800 volt electrical distribution system to supply electricity to 60 campus buildings, which annually consume more electricity than around 13,000 average U.S. homes. By integrating smart meter technology, we are able to track real time energy consumption at the building level. This allows us to analyze consumption trends and identify opportunities for significant energy savings.
Standby Generator Emission Reduction
Georgetown Campus has 33 standby emergency generators throughout campus that support vital life safety equipment in buildings. We are implementing new generator testing procedures and design requirements that will limit emissions from these generators.
Georgetown’s Nanoscience and Microtechnology Laboratory
Commissioning Georgetown’s Nanoscience and Microtechnology Laboratory (GNuLab)
The GNuLab is a shared use facility open to researchers from Georgetown University’s Main Campus and Medical Center. The 3,300 square foot clean room, located in Regents Hall, houses state-of-the-art instrumentation for fabrication and characterization of materials and electronic devices. The clean room incorporates the use of multiple hazardous gases, so it requires a sophisticated alarming system. To ensure the safety of lab occupants, building automated gas detection systems and HVAC equipment were commissioned to identify and remove operational deficiencies.
Commissioning and Troubleshooting of Campus AHUs
We have a number of campus-wide projects involving campus HVAC equipment problem and solution identification. Most recent projects include the New South lower level HVAC redesign to meet adjusted cooling loads and the commissioning of Pre-Clinical science equipment to ensure all equipment safeties are operationally sound.