The effect of using 30% iso-butanol-gasoline blend on hydrocarbon emissions from a spark-ignition engine
- Kuwait Univ., Safat (Kuwait)
The level of hydrocarbon (HC) emissions, from a spark-ignition engine using a 30% iso-butanol-gasoline blend was experimentally investigated. Experiments were conducted on a Hydra single-cylinder, spark-ignition, fuel-injection engine. HC emissions were measured as a function of fuel/air equivalence ratio, ignition timing and engine speed. The effect of varying the temperature of cooling water on HC emissions was also investigated under three fuel/air equivalence ratios (lean, stoichiometric, and rich). Results show that retarding ignition timing with respect to maximum break torque (MBT) has a great effect on HC emissions reduction, where for lean mixture, {Phi} = 0.85, retarding ignition timing by 6 degrees from MBT reduces the exhaust HC emissions by 12%. The level of HC emissions is also reduced by 30% at MBT, as the cooling water temperature increase from 55 to 90 C. It is noticed that as the engine speed increases, the level of HC emissions decrease.
- OSTI ID:
- 350298
- Journal Information:
- Energy Sources, Journal Name: Energy Sources Journal Issue: 5 Vol. 21; ISSN 0090-8312; ISSN EGYSAO
- Country of Publication:
- United States
- Language:
- English
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