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Closed-loop combustion phase control for multiple combustion modes by multiple injections in a compression ignition engine fueled by gasoline-diesel mixture

Fang, Cheng LU ; Ouyang, Minggao ; Tunestal, Per LU ; Yang, Fuyuan and Yang, Xiaofan (2018) In Applied Energy 231. p.816-825
Abstract

Partially premixed combustion with low octane fuel aims to reduce NOx and soot emission simultaneously without fuel consumption penalty. Cylinder pressure based combustion phase control is an essential technology for partially premixed combustion. A novel closed-loop combustion phase control strategy for multiple combustion modes is proposed in the current study. The combustion modes are classified into three basic categories based on injection patterns and heat release stages: (1) with only one heat release stage; (2) with two separated heat release stages; (3) with two overlapped heat release stages. Crank angle when 50% fuel is consumed (CA50) is chosen as the combustion phase indicator for the first case. Start of... (More)

Partially premixed combustion with low octane fuel aims to reduce NOx and soot emission simultaneously without fuel consumption penalty. Cylinder pressure based combustion phase control is an essential technology for partially premixed combustion. A novel closed-loop combustion phase control strategy for multiple combustion modes is proposed in the current study. The combustion modes are classified into three basic categories based on injection patterns and heat release stages: (1) with only one heat release stage; (2) with two separated heat release stages; (3) with two overlapped heat release stages. Crank angle when 50% fuel is consumed (CA50) is chosen as the combustion phase indicator for the first case. Start of combustion (SOC) of each heat release stage is the combustion phase indicator for the second case. Both SOC and CA50 are the combustion phase indicators for the third case. Each combustion phase is closed-loop controlled by a proportional–integral (PI) controller with the timing adjustments of the corresponding injection. The control strategy is verified under different operating conditions in a 1.9 L light duty diesel engine fueled by gasoline-diesel mixture (volumetric 70% gasoline, 30% diesel). The experimental results show that the control strategy is able to control the combustion phase, reduce cylinder to cylinder variations as well as cycle to cycle variations under the operating conditions with exhaust gas circulation (EGR) rates of 10% and 15%.

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Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Closed-loop control, Combustion mode, Combustion phase, Multiple injections, Partially premixed combustion
in
Applied Energy
volume
231
pages
10 pages
publisher
Elsevier
external identifiers
  • scopus:85053764465
ISSN
0306-2619
DOI
10.1016/j.apenergy.2018.09.147
language
English
LU publication?
yes
id
1454e5d6-1d83-47f1-b52f-26254c20e23e
date added to LUP
2018-10-08 13:30:54
date last changed
2021-09-15 04:44:27
@article{1454e5d6-1d83-47f1-b52f-26254c20e23e,
  abstract     = {<p>Partially premixed combustion with low octane fuel aims to reduce NO<sub>x</sub> and soot emission simultaneously without fuel consumption penalty. Cylinder pressure based combustion phase control is an essential technology for partially premixed combustion. A novel closed-loop combustion phase control strategy for multiple combustion modes is proposed in the current study. The combustion modes are classified into three basic categories based on injection patterns and heat release stages: (1) with only one heat release stage; (2) with two separated heat release stages; (3) with two overlapped heat release stages. Crank angle when 50% fuel is consumed (CA50) is chosen as the combustion phase indicator for the first case. Start of combustion (SOC) of each heat release stage is the combustion phase indicator for the second case. Both SOC and CA50 are the combustion phase indicators for the third case. Each combustion phase is closed-loop controlled by a proportional–integral (PI) controller with the timing adjustments of the corresponding injection. The control strategy is verified under different operating conditions in a 1.9 L light duty diesel engine fueled by gasoline-diesel mixture (volumetric 70% gasoline, 30% diesel). The experimental results show that the control strategy is able to control the combustion phase, reduce cylinder to cylinder variations as well as cycle to cycle variations under the operating conditions with exhaust gas circulation (EGR) rates of 10% and 15%.</p>},
  author       = {Fang, Cheng and Ouyang, Minggao and Tunestal, Per and Yang, Fuyuan and Yang, Xiaofan},
  issn         = {0306-2619},
  language     = {eng},
  pages        = {816--825},
  publisher    = {Elsevier},
  series       = {Applied Energy},
  title        = {Closed-loop combustion phase control for multiple combustion modes by multiple injections in a compression ignition engine fueled by gasoline-diesel mixture},
  url          = {http://dx.doi.org/10.1016/j.apenergy.2018.09.147},
  doi          = {10.1016/j.apenergy.2018.09.147},
  volume       = {231},
  year         = {2018},
}