This lab facility is a level 2 laboratory facility housing wet bench and dry bench research, along with teaching facilities.
Mechanical System Description
Neutral temperature make up air is provided to the laboratories with high performance air valves. The final air is conditioned at the zone level to eliminate the inefficiency of traditional reheat systems. Demand control ventilation serves the office areas and classrooms, and the auditorium uses displacement ventilation supplying air from below the seats.
The central air handlers are used as dry coolers for the campus district chilled water system. During the cooling season the chilled water preheats the outside air and provides cooling to the other buildings on campus using chilled water.
Innovative & Sustainable Design
This project used a four pipe tempering system after the supply air valves to eliminate wasted energy typically associated with laboratory reheat only systems. The air handling system uses the chilled water from the heating plant to preheat the air in the heating season. This alleviates the plant cooling needs at cool temperatures, while addressing issues with the freezing up of the cooling towers. Occupancy sensors were used to provide dynamic resets to fume hood face velocities and general air change rates.