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Quantification and Analysis of the Charge Cooling Effect of Methanol in a Compression Ignition Engine Utilizing PPC Strategy

Shamun, Sam LU ; Zincir, Burak LU ; Shukla, Pravesh LU ; Garcia, Pablo LU ; Verhelst, Sebastian LU and Tunér, Martin LU (2018) ASME 2018 Internal Combustion Engine Division Fall Technical Conference
Abstract
The charge cooling effect of methanol was studied and compared to that of iso-octane. The reduction in compression work due to fuel evaporation and the gain in expansion work were evaluated by the means of in-cylinder pressure measurements in a HD CI engine. A single injection strategy was utilized to obtain a longer premixing period to adequately capture the cooling effect. The effect was clear for both tested fuels, however, methanol generally caused the pressure to reduce more than iso-octane near TDC. It was found that the contribution of reduced compression work to the increased net indicated efficiency is negligible. Regarding the expansion work, a slower combustion with higher pressure was obtained for methanol in comparison to that... (More)
The charge cooling effect of methanol was studied and compared to that of iso-octane. The reduction in compression work due to fuel evaporation and the gain in expansion work were evaluated by the means of in-cylinder pressure measurements in a HD CI engine. A single injection strategy was utilized to obtain a longer premixing period to adequately capture the cooling effect. The effect was clear for both tested fuels, however, methanol generally caused the pressure to reduce more than iso-octane near TDC. It was found that the contribution of reduced compression work to the increased net indicated efficiency is negligible. Regarding the expansion work, a slower combustion with higher pressure was obtained for methanol in comparison to that of iso-octane due to the cooling effect of fuel evaporation. As a result from this, a lower heat transfer loss was obtained for methanol, in addition to the significantly lower NOx emissions. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
ASME 2018 Internal Combustion Engine Division Fall Technical Conference
pages
10 pages
publisher
American Society of Mechanical Engineers
conference name
ASME 2018 Internal Combustion Engine Division Fall Technical Conference
conference location
San Diego, United States
conference dates
2018-11-04 - 2018-11-07
external identifiers
  • scopus:85060373466
ISBN
978-0-7918-5198-2
DOI
10.1115/ICEF2018-9657
language
English
LU publication?
yes
id
24ef02ad-afda-4685-b6fd-a6d2371cbbad
date added to LUP
2019-01-30 12:17:51
date last changed
2019-10-15 06:57:56
@inproceedings{24ef02ad-afda-4685-b6fd-a6d2371cbbad,
  abstract     = {The charge cooling effect of methanol was studied and compared to that of iso-octane. The reduction in compression work due to fuel evaporation and the gain in expansion work were evaluated by the means of in-cylinder pressure measurements in a HD CI engine. A single injection strategy was utilized to obtain a longer premixing period to adequately capture the cooling effect. The effect was clear for both tested fuels, however, methanol generally caused the pressure to reduce more than iso-octane near TDC. It was found that the contribution of reduced compression work to the increased net indicated efficiency is negligible. Regarding the expansion work, a slower combustion with higher pressure was obtained for methanol in comparison to that of iso-octane due to the cooling effect of fuel evaporation. As a result from this, a lower heat transfer loss was obtained for methanol, in addition to the significantly lower NOx emissions.},
  author       = {Shamun, Sam and Zincir, Burak and Shukla, Pravesh and Garcia, Pablo and Verhelst, Sebastian and Tunér, Martin},
  isbn         = {978-0-7918-5198-2},
  language     = {eng},
  location     = {San Diego, United States},
  pages        = {10},
  publisher    = {American Society of Mechanical Engineers},
  title        = {Quantification and Analysis of the Charge Cooling Effect of Methanol in a Compression Ignition Engine Utilizing PPC Strategy},
  url          = {http://dx.doi.org/10.1115/ICEF2018-9657},
  year         = {2018},
}