An experimental study on spray and combustion characteristics based on fuel temperature of direct injection bio-ethanol-gasoline blending fuel
| Autor: | Seok-Ho Kang, Seang-Wock Lee, Giyoung Park |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Waste management 020209 energy Mechanical Engineering 02 engineering and technology Fuel injection Combustion law.invention Ignition system Fuel mass fraction 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials law 0202 electrical engineering electronic engineering information engineering Ethanol fuel Heat of combustion Ignition timing Gasoline Composite material |
| Zdroj: | Journal of Mechanical Science and Technology. 30:5239-5246 |
| ISSN: | 1976-3824 1738-494X |
| Popis: | This study investigated the spray and combustion characteristics of a direct injection spark ignition type system based on the changes in the temperature of the blended fuel (with bio-ethanol and gasoline). The test was performed in a chamber with a constant volume. The diameter and width of the chamber were 86 mm and 39 mm, respectively. The bio-ethanol test fuel was blended at volume ratios of 0 %, 10 %, 20 % and 100 %. The temperature of the fuel was set as −7, 25 and 35 °C. The fuel injection pressure and ambient pressure were set as 4.5 and 0.5 MPa, respectively. The shape and characteristics of the spray were investigated through a spray experiment. The increase in the fuel temperature changed its density and viscosity; this in turn increased spray penetration and spray area and increased the bio-ethanol blending ratio. The combustion visualization and experimental analysis indicated that the decrease in the fuel temperature and the increase in the bio-ethanol blending ratio led to the high viscosity and low heating value. This resulted in an increase in the ignition delay and a decrease in the rate of heat release. It is necessary to adjust the spray strategy and ignition timing to adopt bio-ethanol blended fuel as an alternative fuel. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink