Project description
The mechanical systems are variable-air-volume systems, including the laboratory spaces. The BSL-2 spaces use variable air volume in occupied and unoccupied modes. Air pressurization is maintained by tracking supply and exhaust airflow. The BSL-3 spaces operate with constant air volume: required airflow rates during occupied modes and a low airflow rate during unoccupied modes for energy savings. In either case, air pressurization is maintained by tracking airflow between the supply and the exhaust.
The laboratory air systems are 100% outside-air systems equipped with hydronic heat recovery and evaporative cooling. Evaporative cooling is provided on the supply-air side of the system for direct evaporative cooling and on the exhaust-air side for indirect evaporative cooling. The evaporative cooling systems meet 90-95% of the labs’ cooling requirements due to the favorable climate in Cheyenne, Wyoming.
The project includes condensing-type heating water boilers to provide high energy efficiency on the heating side of the mechanical systems. Variable-frequency drives are installed on all fans and pumps with variable-flow capability to achieve additional savings. All motors are specified as premium-efficiency type.
A state-of-the-art energy management system and lighting control system are integrated with the State of Wyoming State Capital Campus building automation system. The lighting system throughout the building’s office and conference room areas uses highly efficient direct/indirect luminaires with electronic ballasts. Individual room controls will consist of either bi-level switching or a fluorescent dimming system.
Guiding Principles for the Design
- Energy Efficiency and Recovery
- Adaptive Environmental Control
- Climate-Responsive Design
- Smart Integration and User Control