Laminar burning velocities of rich near-limiting flames of hydrogen
(2014) In International Journal of Hydrogen Energy 39(4). p.1874-1881- Abstract
- In the present work, near-limiting hydrogen flames were investigated both experimentally and numerically. Very rich hydrogen + air flames were studied in a constant volume bomb equipped with a pressure sensor and a Schlieren system for optical registration of the flame front movement. The mixtures contained 70% and 75% of hydrogen, the rest being air. The measurements were conducted at pressures from 1 to 4 atm for 70% H-2 + air mixture and from 0.7 to 1.4 atm for 75% H-2 + air mixture. Two methods for determination of the laminar burning velocity were used: from the temporal evolution of the flame front movement and from the pressure records at nearly constant pressure. These methods were compared and discussed in terms of accuracy and... (More)
- In the present work, near-limiting hydrogen flames were investigated both experimentally and numerically. Very rich hydrogen + air flames were studied in a constant volume bomb equipped with a pressure sensor and a Schlieren system for optical registration of the flame front movement. The mixtures contained 70% and 75% of hydrogen, the rest being air. The measurements were conducted at pressures from 1 to 4 atm for 70% H-2 + air mixture and from 0.7 to 1.4 atm for 75% H-2 + air mixture. Two methods for determination of the laminar burning velocity were used: from the temporal evolution of the flame front movement and from the pressure records at nearly constant pressure. These methods were compared and discussed in terms of accuracy and implicit assumptions behind them. Markstein lengths were also extracted and compared with the literature by using different extrapolation models. An important role of the critical radius for extraction of the burning velocity and Markstein length is demonstrated. New experimental data are compared with three models for hydrogen combustion to elucidate the need for their further development. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4368460
- author
- Zamashchikov, V. V. ; Alekseev, Vladimir LU and Konnov, Alexander LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Hydrogen, Flame, Burning velocity, Stretch correction
- in
- International Journal of Hydrogen Energy
- volume
- 39
- issue
- 4
- pages
- 1874 - 1881
- publisher
- Elsevier
- external identifiers
-
- wos:000331420900026
- scopus:84891833113
- ISSN
- 1879-3487
- DOI
- 10.1016/j.ijhydene.2013.11.054
- language
- English
- LU publication?
- yes
- id
- 197635c4-94ea-4f22-a59b-ec854f44bcbd (old id 4368460)
- date added to LUP
- 2016-04-01 14:21:49
- date last changed
- 2022-04-22 02:51:18
@article{197635c4-94ea-4f22-a59b-ec854f44bcbd,
abstract = {{In the present work, near-limiting hydrogen flames were investigated both experimentally and numerically. Very rich hydrogen + air flames were studied in a constant volume bomb equipped with a pressure sensor and a Schlieren system for optical registration of the flame front movement. The mixtures contained 70% and 75% of hydrogen, the rest being air. The measurements were conducted at pressures from 1 to 4 atm for 70% H-2 + air mixture and from 0.7 to 1.4 atm for 75% H-2 + air mixture. Two methods for determination of the laminar burning velocity were used: from the temporal evolution of the flame front movement and from the pressure records at nearly constant pressure. These methods were compared and discussed in terms of accuracy and implicit assumptions behind them. Markstein lengths were also extracted and compared with the literature by using different extrapolation models. An important role of the critical radius for extraction of the burning velocity and Markstein length is demonstrated. New experimental data are compared with three models for hydrogen combustion to elucidate the need for their further development. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.}},
author = {{Zamashchikov, V. V. and Alekseev, Vladimir and Konnov, Alexander}},
issn = {{1879-3487}},
keywords = {{Hydrogen; Flame; Burning velocity; Stretch correction}},
language = {{eng}},
number = {{4}},
pages = {{1874--1881}},
publisher = {{Elsevier}},
series = {{International Journal of Hydrogen Energy}},
title = {{Laminar burning velocities of rich near-limiting flames of hydrogen}},
url = {{http://dx.doi.org/10.1016/j.ijhydene.2013.11.054}},
doi = {{10.1016/j.ijhydene.2013.11.054}},
volume = {{39}},
year = {{2014}},
}