10.1021/acs.energyfuels.5b01392.s003
Sungwoo Park
Sungwoo
Park
Suk Ho Chung
Suk Ho
Chung
Tianfeng Lu
Tianfeng
Lu
S. Mani Sarathy
S. Mani
Sarathy
Combustion Characteristics of C<sub>5</sub> Alcohols
and a Skeletal Mechanism for Homogeneous Charge Compression Ignition
Combustion Simulation
American Chemical Society
2015
results show
Ignition delay times
LTHR
engine technologies
40 atm
PRF 75
charge compression ignition
HCCI combustion
C 5 alcohol
expert knowledge methodology
Reaction path analyses
relation graph
Homogeneous Charge Compression Ignition Combustion SimulationC 5 alcohols
combustion Characteristics
heat release features
Skeletal Mechanism
C 5 alcohols
engine combustion conditions
combustion characteristics
reference fuels
C 5 Alcohols
mechanism
heat release characteristics
greenhouse gases
alternative fuels
heat release
2015-12-17 10:47:37
Dataset
https://acs.figshare.com/articles/dataset/Combustion_Characteristics_of_C_sub_5_sub_Alcohols_and_a_Skeletal_Mechanism_for_Homogeneous_Charge_Compression_Ignition_Combustion_Simulation/2005659
C<sub>5</sub> alcohols are considered
alternative fuels because they emit
less greenhouse gases and fewer harmful pollutants. In this study,
the combustion characteristics of 2-methylbutanol (2-methyl-1-butanol)
and isopentanol (3-methyl-1-butanol) and their mixtures with primary
reference fuels (PRFs) were studied using a detailed chemical kinetic
model obtained from merging previously published mechanisms. Ignition
delay times of the C<sub>5</sub> alcohol/air mixtures were compared
to PRFs at 20 and 40 atm. Reaction path analyses were conducted at
intermediate and high temperatures to identify the most influential
reactions controlling ignition of C<sub>5</sub> alcohols. The direct
relation graph with expert knowledge methodology was used to eliminate
unimportant species and reactions in the detailed mechanism, and the
resulting skeletal mechanism was tested at various homogeneous charge
compression ignition (HCCI) engine combustion conditions. These simulations
were used to investigate the heat release characteristics of the methyl-substituted
C<sub>5</sub> alcohols, and the results show relatively strong reactions
at intermediate temperatures prior to hot ignition. C<sub>5</sub> alcohol
blending in PRF75 in HCCI combustion leads to a significant decrease
of low-temperature heat release (LTHR) and a delay of the main combustion.
The heat release features demonstrated by C<sub>5</sub> alcohols can
be used to improve the design and operation of advanced engine technologies.