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The influence of oxygenated fuels on transient and steady-state engine emissions

Zare, Ali, Bodisco, Timothy A., Nabi, Md Nurun, Hossain, Farhad M., Rahman, M.M., Ristovski, Zoran D. and Brown, Richard J. 2017, The influence of oxygenated fuels on transient and steady-state engine emissions, Energy, vol. 121, pp. 841-853, doi: 10.1016/j.energy.2017.01.058.

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Title The influence of oxygenated fuels on transient and steady-state engine emissions
Author(s) Zare, Ali
Bodisco, Timothy A.ORCID iD for Bodisco, Timothy A. orcid.org/0000-0002-5163-4762
Nabi, Md Nurun
Hossain, Farhad M.
Rahman, M.M.
Ristovski, Zoran D.
Brown, Richard J.
Journal name Energy
Volume number 121
Start page 841
End page 853
Total pages 13
Publisher Elsevier
Place of publication London, Eng.
Publication date 2017-02-15
ISSN 0360-5442
1873-6785
Keyword(s) turbocharger lag
fuel oxygen
NOx
PM
PN
particle size distribution
Science & Technology
Physical Sciences
Technology
Thermodynamics
Energy & Fuels
TURBOCHARGED DIESEL-ENGINE
INTER-CYCLE VARIABILITY
EXHAUST EMISSIONS
METHYL-ESTER
PARTICLE EMISSIONS
VEGETABLE-OIL
DRIVING CYCLE
COOKING OILS
BIODIESEL
PERFORMANCE
Summary This research studies the influence of oxygenated fuels on transient and steady-state engine performance and emissions using a fully instrumented, 6-cylinder, common rail turbocharged compression ignition engine. Beside diesel, the other tested fuels were based on waste cooking biodiesel (primary fuel) with triacetin (highly oxygenated additive). A custom test was designed for this study to investigate the engine performance and emissions during steady-state, load acceptance and acceleration operation modes. Furthermore, to study the engine performance and emissions during a whole transient cycle, a legislative cycle (NRTC), which contains numerous discrete transient modes, was utilised. In this paper, the turbocharger lag, engine power, NOx, PM, PN and PN size distribution were investigated. During NRTC the brake power, PM and PN decreased with fuel oxygen content. During steady-state operation, compared to diesel, the oxygenated fuels showed lower indicated power, while they showed higher values during acceleration and turbocharger lag. During acceleration and load increase modes, NOx, PM and PN peaked over the steady-state counterpart, also, the accumulation mode count median diameter moved toward the larger particle sizes. Increasing the fuel oxygen content increased the indicated specific NOx and PN maximum overshoot, while engine power, PM, PN and PM maximum overshoot decreased. Also, the accumulation mode count median diameter moved toward the smaller particle sizes.
Language eng
DOI 10.1016/j.energy.2017.01.058
Field of Research 090201 Automotive Combustion and Fuel Engineering (incl Alternative/Renewable Fuels)
Socio Economic Objective 850501 Biofuel (Biomass) Energy
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2017, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30091555

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