Measurements of the laminar burning velocities of small alkyl esters using the heat flux method : A comparative study
(2023) In Combustion and Flame 255.- Abstract
Consistent datasets of the laminar burning velocity, LBV, for homologous fuels are indispensable for the elucidation of the structure-reactivity trends and the development and validation of pertinent detailed kinetic models. In the present study, all available LBV measurements for small alkyl esters obtained using the heat flux method have been reviewed. New results of the LBV for methyl propionate + air flames employing this method have been acquired at atmospheric pressure and initial gas temperatures from 298 to 348 K over equivalence ratios, ɸ = 0.7–1.5. Earlier experimental data for alkyl esters scattered across non-archival reports were re-examined and corrected when necessary. To prove the validity of the correction, additional... (More)
Consistent datasets of the laminar burning velocity, LBV, for homologous fuels are indispensable for the elucidation of the structure-reactivity trends and the development and validation of pertinent detailed kinetic models. In the present study, all available LBV measurements for small alkyl esters obtained using the heat flux method have been reviewed. New results of the LBV for methyl propionate + air flames employing this method have been acquired at atmospheric pressure and initial gas temperatures from 298 to 348 K over equivalence ratios, ɸ = 0.7–1.5. Earlier experimental data for alkyl esters scattered across non-archival reports were re-examined and corrected when necessary. To prove the validity of the correction, additional LBV measurements for methyl formate and methyl butanoate were performed as well, and successfully demonstrated the consistency of the data obtained using different installations over an extended period of time. Then, the LBV of different families, such as methyl esters of various acids, formates, and acetates, along with isomers, were compared and structure-reactivity trends were assessed. Furthermore, the detailed kinetic mechanism of the authors was expanded by the reactions of methyl propionate and successfully compared with the LBV measurements for methyl formate, methyl acetate, methyl propionate, and ethyl formate. Distinct reactions controlling their flame propagation were revealed using sensitivity analysis and the origin of their rate constants is briefly discussed.
(Less)
- author
- Konnov, Alexander A. LU ; Chen, Jundie LU and Lubrano Lavadera, Marco LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Alkyl esters, Burning velocity, Heat flux method, Kinetic mechanism, Methyl formate, Methyl propionate
- in
- Combustion and Flame
- volume
- 255
- article number
- 112922
- publisher
- Elsevier
- external identifiers
-
- scopus:85163895688
- ISSN
- 0010-2180
- DOI
- 10.1016/j.combustflame.2023.112922
- language
- English
- LU publication?
- yes
- id
- a89a4a1b-bb67-4a19-9fcf-cce4c6481e60
- date added to LUP
- 2023-09-05 09:29:13
- date last changed
- 2023-11-08 10:41:01
@article{a89a4a1b-bb67-4a19-9fcf-cce4c6481e60,
abstract = {{<p>Consistent datasets of the laminar burning velocity, LBV, for homologous fuels are indispensable for the elucidation of the structure-reactivity trends and the development and validation of pertinent detailed kinetic models. In the present study, all available LBV measurements for small alkyl esters obtained using the heat flux method have been reviewed. New results of the LBV for methyl propionate + air flames employing this method have been acquired at atmospheric pressure and initial gas temperatures from 298 to 348 K over equivalence ratios, ɸ = 0.7–1.5. Earlier experimental data for alkyl esters scattered across non-archival reports were re-examined and corrected when necessary. To prove the validity of the correction, additional LBV measurements for methyl formate and methyl butanoate were performed as well, and successfully demonstrated the consistency of the data obtained using different installations over an extended period of time. Then, the LBV of different families, such as methyl esters of various acids, formates, and acetates, along with isomers, were compared and structure-reactivity trends were assessed. Furthermore, the detailed kinetic mechanism of the authors was expanded by the reactions of methyl propionate and successfully compared with the LBV measurements for methyl formate, methyl acetate, methyl propionate, and ethyl formate. Distinct reactions controlling their flame propagation were revealed using sensitivity analysis and the origin of their rate constants is briefly discussed.</p>}},
author = {{Konnov, Alexander A. and Chen, Jundie and Lubrano Lavadera, Marco}},
issn = {{0010-2180}},
keywords = {{Alkyl esters; Burning velocity; Heat flux method; Kinetic mechanism; Methyl formate; Methyl propionate}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Combustion and Flame}},
title = {{Measurements of the laminar burning velocities of small alkyl esters using the heat flux method : A comparative study}},
url = {{http://dx.doi.org/10.1016/j.combustflame.2023.112922}},
doi = {{10.1016/j.combustflame.2023.112922}},
volume = {{255}},
year = {{2023}},
}