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High efficient internal combustion engine using partially premixed combustion with multiple injections

Yin, Lianhao LU ; Lundgren, Marcus LU ; Wang, Zhenkan LU ; Stamatoglou, Panagiota LU ; Richter, Mattias LU ; Andersson, Öivind LU and Tunestål, Per LU (2019) In Applied Energy 233-234. p.516-523
Abstract

Improving the efficiency of the powertrain system is of great importance to reduce the greenhouse gas CO2. Advanced combustion engine with Partially Premixed Combustion (PPC) is one of the best solutions. It is proved to have a high engine efficiency and low emission level. Using multiple injections is a good way to achieve PPC. The efficiencies using multiple injections were evaluated on a metal engine with modern architecture and the reasoning behind that was explored on an optical engine. The metal engine results shown that the point with optimized multiple injections is of higher efficiency than a single injection. Optical results demonstrated that the direct interaction of the first and later injection, as well as the... (More)

Improving the efficiency of the powertrain system is of great importance to reduce the greenhouse gas CO2. Advanced combustion engine with Partially Premixed Combustion (PPC) is one of the best solutions. It is proved to have a high engine efficiency and low emission level. Using multiple injections is a good way to achieve PPC. The efficiencies using multiple injections were evaluated on a metal engine with modern architecture and the reasoning behind that was explored on an optical engine. The metal engine results shown that the point with optimized multiple injections is of higher efficiency than a single injection. Optical results demonstrated that the direct interaction of the first and later injection, as well as the interactions of the fuel and the in-cylinder bulk flow fields and surfaces, could affect mixing and fuel movement and, hence the efficiency. One of the reasons why the optimized multiple injections have a higher efficiency is that the center of the fuel is moved close to the center of the cylinder. Thus, the heat transfer between the heat produced from the fuel-gas mixture and the cylinder liner can be reduced by the isolation. This explains how the injections influence the fuel distribution and the heat transfer and, hence, the engine efficiency.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
High efficiency, In-cylinder fuel stratification, Partially premixed combustion
in
Applied Energy
volume
233-234
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:85055353202
ISSN
0306-2619
DOI
10.1016/j.apenergy.2018.09.011
language
English
LU publication?
yes
id
6a3dea96-8daf-4a15-9e00-b1b59a6bb424
date added to LUP
2018-11-14 08:28:41
date last changed
2019-02-20 11:35:43
@article{6a3dea96-8daf-4a15-9e00-b1b59a6bb424,
  abstract     = {<p>Improving the efficiency of the powertrain system is of great importance to reduce the greenhouse gas CO<sub>2</sub>. Advanced combustion engine with Partially Premixed Combustion (PPC) is one of the best solutions. It is proved to have a high engine efficiency and low emission level. Using multiple injections is a good way to achieve PPC. The efficiencies using multiple injections were evaluated on a metal engine with modern architecture and the reasoning behind that was explored on an optical engine. The metal engine results shown that the point with optimized multiple injections is of higher efficiency than a single injection. Optical results demonstrated that the direct interaction of the first and later injection, as well as the interactions of the fuel and the in-cylinder bulk flow fields and surfaces, could affect mixing and fuel movement and, hence the efficiency. One of the reasons why the optimized multiple injections have a higher efficiency is that the center of the fuel is moved close to the center of the cylinder. Thus, the heat transfer between the heat produced from the fuel-gas mixture and the cylinder liner can be reduced by the isolation. This explains how the injections influence the fuel distribution and the heat transfer and, hence, the engine efficiency.</p>},
  author       = {Yin, Lianhao and Lundgren, Marcus and Wang, Zhenkan and Stamatoglou, Panagiota and Richter, Mattias and Andersson, Öivind and Tunestål, Per},
  issn         = {0306-2619},
  keyword      = {High efficiency,In-cylinder fuel stratification,Partially premixed combustion},
  language     = {eng},
  pages        = {516--523},
  publisher    = {Elsevier},
  series       = {Applied Energy},
  title        = {High efficient internal combustion engine using partially premixed combustion with multiple injections},
  url          = {http://dx.doi.org/10.1016/j.apenergy.2018.09.011},
  volume       = {233-234},
  year         = {2019},
}