Gasoline evaporation. Ethanol and nonethanol blends
Journal Article
·
· Journal of the Air and Waste Management Association
- Energy & Environmental Research Center, Grand Forks, ND (United States)
Tests were performed to compare the evaporation rate of 10 volume percent (vol%) ethanol-blended gasoline (E10) with the evaporation rate of its base gasoline. Weight loss, temperature, pressure, and humidity were monitored as lab-blended E10 and base gasolines were evaporated concurrently from glass cylinders placed on balances located side by side under an exhaust hood. The averaged results of four tests at about 70{degree}F showed that the E10 lost more total weight to evaporation than the base fuel, but less gasoline. The increased weight was due to ethanol, which was present in the E10 evaporative emissions at concentrations of about 13 weight percent (wt%). In two-hour tests at temperature near 70{degree}F, during which 4.5 to 5.3 wt% of initial fuel samples were evaporated, E10 fuels lost an average of about 5% less gasoline than their base fuels. A similar result was obtained for a one-hour test, during which about 2.4 to 2.5 wt% of the initial fuel samples were evaporated. Gas chromatography (GC) component analysis indicated that the compositions of the ethanol-free emissions from the two fuels were similar. Reid vapor pressure (RVP) measurements made using a Grabner CCA-VPS according to ASTM D5191-91 indicated that E10 fuels underwent an approximate 5% greater RVP reduction than their respective base fuels. 16 refs., 2 figs., 3 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 62286
- Journal Information:
- Journal of the Air and Waste Management Association, Journal Name: Journal of the Air and Waste Management Association Journal Issue: 8 Vol. 44; ISSN JAWAEB; ISSN 1047-3289
- Country of Publication:
- United States
- Language:
- English
Similar Records
Gasoline evaporative emissions -- Ethanol effects on vapor control canister sorbent performance
Effects of RVP, T50, and oxygenates on hot-start and driveability performance at high and low altitude
Effect of use of low oxygenate gasoline blends upon emissions from California vehicles. Final report
Book
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:287901
Effects of RVP, T50, and oxygenates on hot-start and driveability performance at high and low altitude
Technical Report
·
Sat May 01 00:00:00 EDT 1993
·
OSTI ID:6257726
Effect of use of low oxygenate gasoline blends upon emissions from California vehicles. Final report
Technical Report
·
Mon Jan 31 23:00:00 EST 1994
·
OSTI ID:6842458