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Stratified cold sta...
Stratified cold start sprays of gasoline-ethanol blends
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- Hemdal, Stina, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Denbratt, Ingemar, 1951 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Dahlander, Petter, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Wärnberg, Jonas, 1978 (author)
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(creator_code:org_t)
- 2009-04-20
- 2009
- English.
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In: SAE International Journal of Fuels and Lubricants. - : SAE International. - 1946-3952 .- 1946-3960. ; 2:1, s. 683-696
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Abstract
Subject headings
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- Gasoline and gasoline-ethanol sprays from an outward-opening piezo-injector were studied in a constant volume/pressure chamber using high-speed imaging and phase doppler anemometry (PDA) under stratified cold start conditions corresponding to a vehicle ambient temperature of 243 K (-30 °C/-22 °F); in-cylinder air pressure of 5 bar, air temperature of 350 K (-30 °C/-22 °F) and fuel temperature of 243 K. The effects of varying in-cylinder pressure and temperature, fuel injection pressure and fuel temperature on the formation of gasoline, E75 and pure ethanol sprays were investigated. The results indicate that fuel composition affects spray behaviour, but less than expected. Furthermore, varying the temperature of the fuel or the air surrounding the spray also had minor effects. As expected, the fuel injection pressure was found to have the strongest influence on spray formation under stratified conditions.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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