Optical studies of spray development and combustion of water-in-diesel emulsion and microemulsion fuels
| Autor: | Raul Lima Ochoterena, Magnus Nydén, Ingemar Denbratt, Anna Lif, Sven B Andersson |
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| Přispěvatelé: | Ochoterena, Raúl, Lif, Anna, Nydén, Magnus, Andersson, Sven, Denbratt, Ingemar |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
water-in-diesel emulsion
Chemistry General Chemical Engineering Organic Chemistry Energy Engineering and Power Technology Penetration (firestop) medicine.disease_cause Diesel engine Combustion Soot Adiabatic flame temperature Diesel fuel Fuel Technology Chemical engineering Emulsion spray combustion medicine Organic chemistry Microemulsion spray behaviour |
| Popis: | Physical properties, spray behaviour and combustion characteristics of a water-in-diesel emulsion, a water-in-diesel microemulsion and a conventional diesel fuel were investigated. The size of the drops, in the water-containing fuels, was measured by NMR diffusometry. Spray development and combustion were studied by optical methods in an optically accessed combustion vessel at conditions similar to those in a diesel engine. High speed shadowgraphs were employed to measure break-up, droplets penetration, vapour penetration and start of combustion. Combustion duration, flame temperature and relative soot concentration were determined by emission-based methods. Differences in spray behaviour suggest an enhanced atomisation for the water-containing fuels compared to regular diesel fuel. Moreover, reduced soot concentrations and flame temperature with increased combustion duration were noticed for the water-in-diesel fuels than for the regular diesel fuel. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
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