Marshall Space Flight Center

Built in 1957 and having undergone numerous renovations over the years, the building was not meeting occupant or laboratory requirements to support the NASA mission. With significant moisture intrusion as well as indoor air quality issues and with energy consumption levels three times that of comparable buildings on the Marshall Space Flight Center campus, CxGBS® was hired to reduce energy consumption and improve building performance to meet NASA’s mission.

Added Value through CxGBS® Services:

CxGBS identified several spaces in which the current conditions differed significantly from original design and provided recommendations to reduce air and water flows by as much as 30% to meet current operational conditions.

• Several instances of simultaneous heating and cooling were identified in labs with VAV terminal units and in space CRAC units operating at differing set points.
• Hydronic water loop piping was observed to be installed reversed causing excessive pressure drop, additional pumping energy, and insufficient flow rates at terminal units.
• Multiple instances were identified where AHU fans were operating with both return and outside air dampers fully closed due to broken linkages.
• Building and space pressurization problems were identified and corrected to provide acceptable space pressurization in laboratories and to maintain positive building pressurization.
• Opportunities for fan sheave changes were identified to reduce fan energy consumption while maintaining acceptable indoor environmental quality and occupant comfort.
• CxGBS created as-built CAD drawings of the facility, combining fifty plus years of renovation drawings into a single comprehensive drawing set that reflected current equipment locations.

TEAM:

Owner:
NASA

Construction Professionals:
AETOS

Commissioning Professionals:
Commissioning & Green Building Solutions, Inc.