The report documents the results obtained during the second year of a planned three-year program designed to determine the hydrocarbon losses sustained during the refueling of passenger cars. A five-city, four-season field survey and a laboratory study were conducted in parallel. The objectives of the field survey were to observe the magnitude and frequency of spill losses in the service station environment and to record temperatures relevant to the estimation of displaced hydrocarbon losses. The objective of the laboratory study was to measure the magnitude of displaced losses under conditions representative of those observed in the field. The twelve-month investigation obtained data from observations of 7, 151 refueling operations in the field and 125 experiments conducted in the laboratory. Four categories of spill loss were identified. In sequence of possible occurrence they are: (1) Prefill drip from the nozzle while it is being handled from the pump to the vehicle; (2) Spit-back of gasoline from the fuel tank filler pipe resulting from pressure build-up in the vapor space in the fuel tank during an automatic fill; (3) Overflow from the filler pipe when the amount of gasoline dispensed exceeds the tank capacity (manual fill); (4) Postfill drip from the nozzle while it is being handled from the vehicle back to the pump. A summary of the magnitude and probability of occurrence of one or more spill types is given, together with the total and average refill in gallons dispensed.
Investigation of Passenger Car Refueling Losses, Second-Year Program
1972
147 pages
Report
Keine Angabe
Englisch
Investigation of Passenger Car Refueling Losses
NTIS | 1970
Investigation of Passenger Car Refueling Losses
NTIS | 1970
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