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dc.contributor.authorEmberson, D. R.
dc.contributor.authorIhracska, B.
dc.contributor.authorImran, S.
dc.contributor.authorDiez, A.
dc.contributor.authorLancaster, M.
dc.contributor.authorKorakianitis, T.
dc.identifier.citationEmberson , D R , Ihracska , B , Imran , S , Diez , A , Lancaster , M & Korakianitis , T 2015 , ' Hydraulic characterization of Diesel and water emulsions using momentum flux ' , Fuel , vol. 162 , pp. 23-33 .
dc.identifier.otherPURE: 9295002
dc.identifier.otherPURE UUID: 1cf452f0-568c-476d-8d56-fb5a53418673
dc.identifier.otherScopus: 84941638082
dc.descriptionD. R. Emberson, et al, 'Hydraulic characterization of Diesel and water emulsions using momentum flux', Fuel, Vol. 162, pp. 23-33, December 2015, doi: © 2015 Published by Elsevier Ltd.
dc.description.abstractDiesel and water emulsions have the potential to be used in compression ignition engines to control the emissions of NOx and PM. Very little is known about the influence emulsification will have on the fuel sprays formed during injection. This paper outlines the measurement of the momentum flux of injection sprays of Diesel fuel and Diesel fuel emulsions containing 10% and 20% water, with the goal of hydraulically characterizing the sprays and identifying the influence emulsification may have on them. The momentum flux, mass flow, instantaneous mass flow, discharge coefficient, injection velocity, momentum coefficient and momentum efficiency have been examined. The injections were carried out in a high pressure chamber filled with nitrogen. The measured momentum flux is observed to increase with increasing injection pressure in a linear form. Increasing the ambient density in the chamber resulted in a decrease in the measured momentum flux. The emulsified fuel sprays had a very similar momentum flux as the neat Diesel fuel sprays. The total mass of emulsified fuel injected was less than for neat Diesel at corresponding condition. The instantaneous mass flow rate was determined using a normalized form of the momentum flux measurement and the independently measured total mass injected. The emulsions tended to have a lower discharge coefficient and there is no evidence that the nozzle is cavitating at these conditions. The emulsified fuels have tended to have a higher injection velocity than the neat Diesel fuel sprays. The momentum efficiency is introduced, which uses the instantaneous mass measurement and the theoretical velocity of the spray. The emulsified fuels have a larger momentum efficiency, a result of their high injection velocity compared with the neat Diesel fuel.en
dc.subjectDiesel water emulsions
dc.subjectFuel injection
dc.subjectInstantaneous mass flow rate
dc.subjectMomentum flux
dc.titleHydraulic characterization of Diesel and water emulsions using momentum fluxen
dc.contributor.institutionSchool of Engineering and Technology
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionSustainable Energy Technologies
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Engineering and Technology
rioxxterms.typeJournal Article/Review

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