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Combustion Analysis of a Diesel Engine during Warm up at Different Coolant and Lubricating Oil Temperatures

Lodi, Faisal, Zare, Ali, Arora, Priyanka, Stevanovic, Svetlana, Jafari, Mohammad, Ristovski, Zoran, Brown, Richard J. and Bodisco, Timothy 2020, Combustion Analysis of a Diesel Engine during Warm up at Different Coolant and Lubricating Oil Temperatures, ENERGIES, vol. 13, no. 15, doi: 10.3390/en13153931.

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Title Combustion Analysis of a Diesel Engine during Warm up at Different Coolant and Lubricating Oil Temperatures
Author(s) Lodi, FaisalORCID iD for Lodi, Faisal orcid.org/0000-0002-5528-7366
Zare, AliORCID iD for Zare, Ali orcid.org/0000-0002-1601-4170
Arora, Priyanka
Stevanovic, SvetlanaORCID iD for Stevanovic, Svetlana orcid.org/0000-0002-9472-0169
Jafari, Mohammad
Ristovski, Zoran
Brown, Richard J.
Bodisco, TimothyORCID iD for Bodisco, Timothy orcid.org/0000-0002-5163-4762
Journal name ENERGIES
Volume number 13
Issue number 15
Article ID 3931
Total pages 21
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2020-08-01
ISSN 1996-1073
Keyword(s) Science & Technology
Technology
Energy & Fuels
diesel engine cold start
peak pressure timing
peak AHRR
mass fraction burned
start of combustion
end of combustion
combustion duration
ignition delay
INTER-CYCLE VARIABILITY
EXHAUST EMISSIONS
GAS
TRANSIENT
Summary A comprehensive analysis of combustion behaviour during cold, intermediately cold, warm and hot start stages of a diesel engine are presented. Experiments were conducted at 1500 rpm and 2000 rpm, and the discretisation of engine warm up into stages was facilitated by designing a custom drive cycle. Advanced injection timing, observed during the cold start period, led to longer ignition delay, shorter combustion duration, higher peak pressure and a higher peak apparent heat release rate (AHRR). The peak pressure was ~30% and 20% and the AHRR was ~2 to 5% and ±1% higher at 1500 rpm and 2000 rpm, respectively, during cold start, compared to the intermediate cold start. A retarded injection strategy during the intermediate cold start phase led to shorter ignition delay, longer combustion duration, lower peak pressure and lower peak AHRR. At 2000 rpm, an exceptional combustion behaviour led to a ~27% reduction in the AHRR at 25% load. Longer ignition delays and shorter combustion durations at 25% load were observed during the intermediately cold, warm and hot start segments. The mass fraction burned (MFB) was calculated using a single zone combustion model to analyse combustion parameters such as crank angle (CA) at 50% MFB, AHRR@CA50 and CA duration for 10–90% MFB.
Language eng
DOI 10.3390/en13153931
Indigenous content off
Field of Research 02 Physical Sciences
09 Engineering
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30140612

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.