Experimental and computational studies of methanol and ethanol preignition behind reflected shock waves

Miguel Figueroa Labastida; Minh Bau Luong; Jihad Badra; Hong G. Im; Aamir Farooq

doi:10.1016/j.combustflame.2021.111621

Experimental and computational studies of methanol and ethanol preignition behind reflected shock waves

Miguel Figueroa Labastida, Minh Bau Luong, Jihad Badra, Hong G. Im, Aamir Farooq

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Experimental and computational investigations are carried out to identify the generalized criterion to predict the preignition tendency of methanol and ethanol mixtures in shock tubes. Preignition or weak ignition in shock tubes has been reported to be a significant factor impacting the accuracy of the ignition delay times data. A systematic means to predict the extent of non-idealities needs to be established and validated with experimental data over a wide range of conditions. Measurements of ignition delay times of methanol and ethanol mixtures were performed to identify unexpectedly expedited ignition. Methanol mixtures showed preignition at low temperatures, similarly to ethanol mixtures. Endwall high-speed imaging was implemented to assess spatial uniformity of ignition for methanol and ethanol. Furthermore, 1-D simulations of ethanol/methanol mixtures, in the presence of ignition sources, were utilized to investigate various preignition criteria. The Sankaran number criterion (Sap), proposed earlier for ignition regime identification, was found to be the most successful predictor of the experimental observations.

Original language	English (US)
Pages (from-to)	111621
Journal	Combustion and Flame
Volume	234
DOIs	https://doi.org/10.1016/j.combustflame.2021.111621
State	Published - Aug 7 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-08-10
Acknowledgements: The paper is based on work supported by Saudi Aramco Research and Development Center FUELCOM program. FUELCOM (Fuel Combustion for Advanced Engines) is a collaborative research undertaking between Saudi Aramco and KAUST intended to address the fundamental aspects of hydrocarbon fuel combustion in engines, and develop fuel/engine design tools suitable for advanced combustion modes. This work used the computational resources of the KAUST Supercomputing Laboratory (KSL).

ASJC Scopus subject areas

Energy Engineering and Power Technology
General Physics and Astronomy
General Chemical Engineering
General Chemistry
Fuel Technology

Access to Document

10.1016/j.combustflame.2021.111621

Cite this

@article{be708975d9994da68fbb284bd37fcbef,

title = "Experimental and computational studies of methanol and ethanol preignition behind reflected shock waves",

abstract = "Experimental and computational investigations are carried out to identify the generalized criterion to predict the preignition tendency of methanol and ethanol mixtures in shock tubes. Preignition or weak ignition in shock tubes has been reported to be a significant factor impacting the accuracy of the ignition delay times data. A systematic means to predict the extent of non-idealities needs to be established and validated with experimental data over a wide range of conditions. Measurements of ignition delay times of methanol and ethanol mixtures were performed to identify unexpectedly expedited ignition. Methanol mixtures showed preignition at low temperatures, similarly to ethanol mixtures. Endwall high-speed imaging was implemented to assess spatial uniformity of ignition for methanol and ethanol. Furthermore, 1-D simulations of ethanol/methanol mixtures, in the presence of ignition sources, were utilized to investigate various preignition criteria. The Sankaran number criterion (Sap), proposed earlier for ignition regime identification, was found to be the most successful predictor of the experimental observations.",

author = "{Figueroa Labastida}, Miguel and Luong, {Minh Bau} and Jihad Badra and Im, {Hong G.} and Aamir Farooq",

note = "KAUST Repository Item: Exported on 2021-08-10 Acknowledgements: The paper is based on work supported by Saudi Aramco Research and Development Center FUELCOM program. FUELCOM (Fuel Combustion for Advanced Engines) is a collaborative research undertaking between Saudi Aramco and KAUST intended to address the fundamental aspects of hydrocarbon fuel combustion in engines, and develop fuel/engine design tools suitable for advanced combustion modes. This work used the computational resources of the KAUST Supercomputing Laboratory (KSL).",

year = "2021",

month = aug,

day = "7",

doi = "10.1016/j.combustflame.2021.111621",

language = "English (US)",

volume = "234",

pages = "111621",

journal = "Combustion and Flame",

issn = "0010-2180",

publisher = "Elsevier",

}

TY - JOUR

T1 - Experimental and computational studies of methanol and ethanol preignition behind reflected shock waves

AU - Figueroa Labastida, Miguel

AU - Luong, Minh Bau

AU - Badra, Jihad

AU - Im, Hong G.

AU - Farooq, Aamir

N1 - KAUST Repository Item: Exported on 2021-08-10 Acknowledgements: The paper is based on work supported by Saudi Aramco Research and Development Center FUELCOM program. FUELCOM (Fuel Combustion for Advanced Engines) is a collaborative research undertaking between Saudi Aramco and KAUST intended to address the fundamental aspects of hydrocarbon fuel combustion in engines, and develop fuel/engine design tools suitable for advanced combustion modes. This work used the computational resources of the KAUST Supercomputing Laboratory (KSL).

PY - 2021/8/7

Y1 - 2021/8/7

N2 - Experimental and computational investigations are carried out to identify the generalized criterion to predict the preignition tendency of methanol and ethanol mixtures in shock tubes. Preignition or weak ignition in shock tubes has been reported to be a significant factor impacting the accuracy of the ignition delay times data. A systematic means to predict the extent of non-idealities needs to be established and validated with experimental data over a wide range of conditions. Measurements of ignition delay times of methanol and ethanol mixtures were performed to identify unexpectedly expedited ignition. Methanol mixtures showed preignition at low temperatures, similarly to ethanol mixtures. Endwall high-speed imaging was implemented to assess spatial uniformity of ignition for methanol and ethanol. Furthermore, 1-D simulations of ethanol/methanol mixtures, in the presence of ignition sources, were utilized to investigate various preignition criteria. The Sankaran number criterion (Sap), proposed earlier for ignition regime identification, was found to be the most successful predictor of the experimental observations.

AB - Experimental and computational investigations are carried out to identify the generalized criterion to predict the preignition tendency of methanol and ethanol mixtures in shock tubes. Preignition or weak ignition in shock tubes has been reported to be a significant factor impacting the accuracy of the ignition delay times data. A systematic means to predict the extent of non-idealities needs to be established and validated with experimental data over a wide range of conditions. Measurements of ignition delay times of methanol and ethanol mixtures were performed to identify unexpectedly expedited ignition. Methanol mixtures showed preignition at low temperatures, similarly to ethanol mixtures. Endwall high-speed imaging was implemented to assess spatial uniformity of ignition for methanol and ethanol. Furthermore, 1-D simulations of ethanol/methanol mixtures, in the presence of ignition sources, were utilized to investigate various preignition criteria. The Sankaran number criterion (Sap), proposed earlier for ignition regime identification, was found to be the most successful predictor of the experimental observations.

UR - http://hdl.handle.net/10754/670488

UR - https://linkinghub.elsevier.com/retrieve/pii/S0010218021003643

U2 - 10.1016/j.combustflame.2021.111621

DO - 10.1016/j.combustflame.2021.111621

M3 - Article

SN - 0010-2180

VL - 234

SP - 111621

JO - Combustion and Flame

JF - Combustion and Flame

ER -

Experimental and computational studies of methanol and ethanol preignition behind reflected shock waves

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this