Reduction of Electrostatic Charge in Jet Fuels during Refueler Loading
Abstract
A 30-second relaxation chamber and a static charge reducer (SCR) were evaluated for their effectiveness in dissipating the electrostatic charge during refueler loading of JP-5 fuel at flow rates of 300 to 540 gpm. The electrical conductivity of the JP-5 fuel was in the range of 0.1 to 10 C. U. at 78F (1 C.U. = 1 X 10 to the minus 14 power mhos/cm). A JP-4 fuel with a conductivity of 7.8 C.U. was also tested to a limited extent. The experimental setup consisted of a 600-gpm filter/separator equipped with fuel monitors, a 30- second relaxation chamber, and a static charge reducer located in parallel downstream of the filter/separator, a 13-ft refueling hose (2-1/2in. or 3-in. diameter), and either a 7050- or a 8200-gallon refueler. The charge density in the fuel was measured immediately downstream of the filter/separator, at the outlet of the relaxation device, and at the dry break or loading connection to the refueler.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 20, 1972
- Accession Number
- AD0748995
Entities
People
- Homer W. Carhart
- Joseph T. Leonard
Organizations
- United States Naval Research Laboratory