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Potential Levels of Soot, NOx, HC and CO for Methanol Combustion

Svensson, Erik LU ; Li, Changle LU ; Shamun, Sam LU ; Johansson, Bengt LU ; Tuner, Martin LU ; Perlman, Cathleen; Lehtiniemi, Harry LU and Mauss, Fabian LU (2016) SAE 2016 World Congress and Exhibition, 2016 In SAE Technical Papers
Abstract

Methanol is today considered a viable green fuel for combustion engines because of its low soot emissions and the possibility of it being produced in a CO2-neutral manner. Methanol as a fuel for combustion engines have attracted interest throughout history and much research was conducted during the oil crisis in the seventies. In the beginning of the eighties the oil prices began to decrease and interest in methanol declined. This paper presents the emission potential of methanol. T-Φ maps were constructed using a 0-D reactor with constant pressure, temperature and equivalence ratio to show the emission characteristics of methanol. These maps were compared with equivalent maps for diesel fuel. The maps were then complemented... (More)

Methanol is today considered a viable green fuel for combustion engines because of its low soot emissions and the possibility of it being produced in a CO2-neutral manner. Methanol as a fuel for combustion engines have attracted interest throughout history and much research was conducted during the oil crisis in the seventies. In the beginning of the eighties the oil prices began to decrease and interest in methanol declined. This paper presents the emission potential of methanol. T-Φ maps were constructed using a 0-D reactor with constant pressure, temperature and equivalence ratio to show the emission characteristics of methanol. These maps were compared with equivalent maps for diesel fuel. The maps were then complemented with engine simulations using a stochastic reactor model (SRM), which predicts end-gas emissions. The SRM was validated using experimental results from a truck engine running in Partially Premixed Combustion (PPC) mode at medium loads. The SRM was able to predict the combustion in terms of pressure trace and rate of heat release. The CO and NOx emissions were matched, however, the HC emissions were underestimated. Finally, the trajectories from the SRM simulations were superimposed on the T-Φ maps to investigate the in engine conditions. The T-Φ map analysis shows that emission of soot are non-existent, formaldehyde can be avoided and that emissions of methane are kept at, compared to diesel combustion, low levels, however CO and NOx levels are similar to diesel combustion. These results were confirmed for engine conditions by the SRM simulations and the engine experiments.

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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
in
SAE Technical Papers
publisher
SAE International
conference name
SAE 2016 World Congress and Exhibition, 2016
external identifiers
  • scopus:84979026695
DOI
10.4271/2016-01-0887
language
English
LU publication?
yes
id
09b868e7-913a-4e70-82e4-cc8092894b1c
date added to LUP
2017-02-22 14:27:17
date last changed
2017-05-10 13:28:25
@inproceedings{09b868e7-913a-4e70-82e4-cc8092894b1c,
  abstract     = {<p>Methanol is today considered a viable green fuel for combustion engines because of its low soot emissions and the possibility of it being produced in a CO<sub>2</sub>-neutral manner. Methanol as a fuel for combustion engines have attracted interest throughout history and much research was conducted during the oil crisis in the seventies. In the beginning of the eighties the oil prices began to decrease and interest in methanol declined. This paper presents the emission potential of methanol. T-Φ maps were constructed using a 0-D reactor with constant pressure, temperature and equivalence ratio to show the emission characteristics of methanol. These maps were compared with equivalent maps for diesel fuel. The maps were then complemented with engine simulations using a stochastic reactor model (SRM), which predicts end-gas emissions. The SRM was validated using experimental results from a truck engine running in Partially Premixed Combustion (PPC) mode at medium loads. The SRM was able to predict the combustion in terms of pressure trace and rate of heat release. The CO and NO<sub>x</sub> emissions were matched, however, the HC emissions were underestimated. Finally, the trajectories from the SRM simulations were superimposed on the T-Φ maps to investigate the in engine conditions. The T-Φ map analysis shows that emission of soot are non-existent, formaldehyde can be avoided and that emissions of methane are kept at, compared to diesel combustion, low levels, however CO and NO<sub>x</sub> levels are similar to diesel combustion. These results were confirmed for engine conditions by the SRM simulations and the engine experiments.</p>},
  author       = {Svensson, Erik and Li, Changle and Shamun, Sam and Johansson, Bengt and Tuner, Martin and Perlman, Cathleen and Lehtiniemi, Harry and Mauss, Fabian},
  booktitle    = {SAE Technical Papers},
  language     = {eng},
  publisher    = {SAE International},
  title        = {Potential Levels of Soot, NO<sub>x</sub>, HC and CO for Methanol Combustion},
  url          = {http://dx.doi.org/10.4271/2016-01-0887},
  year         = {2016},
}