Critical-path Torus Re-coat Project

Provide a temporary ventilation system to support this critical-path torus re-coat project.
Design to support grit blasting, application of the new coating system, and accelerated curing to ensure critical-path performance.
Design, fabricate/procure system components, supervise installation, and provide ongoing engineering support for the coating operations.

Maintained a sufficient air-exchange rate within the torus to minimize the airborne DAC levels.
Maintained the torus volume at a lower negative pressure relative to the torus room and the floors above.
Generated a sufficient capture velocity across the manway access to minimize the migration of contamination across that boundary.
Controlled temperature and humidity to support the coating application and minimize the cure time.
All system objectives were achieved for this critical-path project with no malfunctions or time lost.