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Flame propagation and burning rates of methane-air mixtures using schlieren photography

Different methodology have been shown to produce different results for Markstein length and laminar burning velocity of methane-air mixture. This study attempts to determine the aforesaid parameters using the newly developed closed vessel combustion chamber with Schlieren photography. Markstein leng...

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Main Authors: Suhaimi, M. S., Saat, A., Wahid, M. A., Mohd. Sies, M.
Format: Article
Language:English
Published: Penerbit UTM Press 2016
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/74631/1/MohdSuardiSuhaimi2016_FlamePropagationandBurningRates.pdf
http://eprints.utm.my/id/eprint/74631/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991727558&doi=10.11113%2fjt.v78.9664&partnerID=40&md5=623b476e9213202237d0f5bbe787b8f7
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spelling my.utm.746312017-11-23T01:37:10Z http://eprints.utm.my/id/eprint/74631/ Flame propagation and burning rates of methane-air mixtures using schlieren photography Suhaimi, M. S. Saat, A. Wahid, M. A. Mohd. Sies, M. TP Chemical technology Different methodology have been shown to produce different results for Markstein length and laminar burning velocity of methane-air mixture. This study attempts to determine the aforesaid parameters using the newly developed closed vessel combustion chamber with Schlieren photography. Markstein length and burning rate of methane-air mixture was determined under the initial pressure of 1 atm, temperature range of 298-302K and equivalence ratio range of 0.7-1.3. Experiments were performed in a centrally ignited 29.16L cylindrical constant volume combustion chamber. Ignition energy was set at 25mJ for each experiment. The images of spherically expanding flame were recorded using Schlieren photography technique at a speed of 2000 frame per second. Analysis of the flame area yield flame radii from which the flame speed and stretch rate could be obtained. These parameters would allow the determination of Markstein length and burning rate of the flame. Results show that Markstein length magnitude increases proportionally with equivalence ratio with a magnitude ranging from 0.125cm to 0.245cm. Maximum burning rate occurs at equivalence ratio of 1.1 with a magnitude of 0.366 m/s. Flame of each equivalence ratio also exhibits fluctuation arising from acoustic disturbance. This disturbance becomes more apparent at higher equivalence ratio. Penerbit UTM Press 2016 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/74631/1/MohdSuardiSuhaimi2016_FlamePropagationandBurningRates.pdf Suhaimi, M. S. and Saat, A. and Wahid, M. A. and Mohd. Sies, M. (2016) Flame propagation and burning rates of methane-air mixtures using schlieren photography. Jurnal Teknologi, 78 (10-2). pp. 21-27. ISSN 0127-9696 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991727558&doi=10.11113%2fjt.v78.9664&partnerID=40&md5=623b476e9213202237d0f5bbe787b8f7
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Suhaimi, M. S.
Saat, A.
Wahid, M. A.
Mohd. Sies, M.
Flame propagation and burning rates of methane-air mixtures using schlieren photography
description Different methodology have been shown to produce different results for Markstein length and laminar burning velocity of methane-air mixture. This study attempts to determine the aforesaid parameters using the newly developed closed vessel combustion chamber with Schlieren photography. Markstein length and burning rate of methane-air mixture was determined under the initial pressure of 1 atm, temperature range of 298-302K and equivalence ratio range of 0.7-1.3. Experiments were performed in a centrally ignited 29.16L cylindrical constant volume combustion chamber. Ignition energy was set at 25mJ for each experiment. The images of spherically expanding flame were recorded using Schlieren photography technique at a speed of 2000 frame per second. Analysis of the flame area yield flame radii from which the flame speed and stretch rate could be obtained. These parameters would allow the determination of Markstein length and burning rate of the flame. Results show that Markstein length magnitude increases proportionally with equivalence ratio with a magnitude ranging from 0.125cm to 0.245cm. Maximum burning rate occurs at equivalence ratio of 1.1 with a magnitude of 0.366 m/s. Flame of each equivalence ratio also exhibits fluctuation arising from acoustic disturbance. This disturbance becomes more apparent at higher equivalence ratio.
format Article
author Suhaimi, M. S.
Saat, A.
Wahid, M. A.
Mohd. Sies, M.
author_facet Suhaimi, M. S.
Saat, A.
Wahid, M. A.
Mohd. Sies, M.
author_sort Suhaimi, M. S.
title Flame propagation and burning rates of methane-air mixtures using schlieren photography
title_short Flame propagation and burning rates of methane-air mixtures using schlieren photography
title_full Flame propagation and burning rates of methane-air mixtures using schlieren photography
title_fullStr Flame propagation and burning rates of methane-air mixtures using schlieren photography
title_full_unstemmed Flame propagation and burning rates of methane-air mixtures using schlieren photography
title_sort flame propagation and burning rates of methane-air mixtures using schlieren photography
publisher Penerbit UTM Press
publishDate 2016
url http://eprints.utm.my/id/eprint/74631/1/MohdSuardiSuhaimi2016_FlamePropagationandBurningRates.pdf
http://eprints.utm.my/id/eprint/74631/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991727558&doi=10.11113%2fjt.v78.9664&partnerID=40&md5=623b476e9213202237d0f5bbe787b8f7
_version_ 1643656895133646848
score 13.211869

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