United Airlines is expanding their operations at John F. Kennedy International Airport to include Terminal 6. Argus' task that was to evaluate the existing fuel distribution and hydrant fueling system to determine piping system modifications for two conceptual aircraft parking plans. Additionally, the emergency fuel shutoff (EFSO) system was analyzed and recommendations provided to update system to current industry standards.

Phasing and Scheduling
Argus worked with the Airport Terminal Planning Consultant to develop a phasing/sequence schedule was developed to implement system modifications with minimal disruption of gate operations. This was also coordinated with ramp pavement work scheduled.

Analysis
The peak fueling demand was calculated for the proposed aircraft parking plans and data was used in the steady state hydraulic analysis for the existing system and proposed modifications. These analyses provided flow and pressure data for all segments of piping. The steady state hydraulic analysis confirmed that one of the three distribution mains serving the terminal could be abandoned, thereby reducing the environmental liabilities.

Modifications
All modifications complied with the Port Authority of New York and New Jersey aviation fueling standards including fuel piping, fuel hydrant control valves, and fusible emergency valves under the hydrant valve. The proposed modifications also allow for future leak detection of hydrant system by isolating the system with double block and bleed valves and providing pressure taps at the isolation valve vault.