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Flame burning speeds and combustion characteristics of undiluted and nitrogen-diluted hydrogen-nitrous oxide mixtures

Bane, S. P. M. and Mével, R. and Coronel, S. A. and Shepherd, J. E. (2011) Flame burning speeds and combustion characteristics of undiluted and nitrogen-diluted hydrogen-nitrous oxide mixtures. International Journal of Hydrogen Energy, 36 (16). pp. 10107-10116. ISSN 0360-3199. https://resolver.caltech.edu/CaltechAUTHORS:20110921-080833818

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Abstract

In the present study, some explosive properties of undiluted and nitrogen-diluted H_2–N_2O mixtures were characterized. Laminar burning speeds and the explosion-induced pressure rises were determined experimentally for a range of mixture equivalence ratios (ϕ=0.15−1.0), dilutions (0-55%N_2) and initial pressures (20-80kPa). The measured burning speeds were used to validate laminar burning speed computations using a detailed chemical kinetic mechanism. The computations were then used to estimate burning speeds at high initial pressure and low dilution conditions that could not be measured experimentally. The results demonstrate that hydrogen–nitrous oxide mixtures exhibit laminar burning speeds as large as 350 cm/s and pressure rise coefficients (K_g) as large as 35 MPa m/s. Also, flames in lean mixtures are shown to be highly unstable which can lead to flame acceleration and possible deflagration-to-detonation transition.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.ijhydene.2011.04.232DOIArticle
ORCID:
AuthorORCID
Bane, S. P. M.0000-0002-4764-3228
Mével, R.0000-0002-0032-350X
Coronel, S. A.0000-0002-7088-7976
Shepherd, J. E.0000-0003-3181-9310
Additional Information:© 2011 Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. Received 23 February 2011; revised 30 March 2011; Accepted 3 April 2011. Available online 17 June 2011.
Group:GALCIT
Subject Keywords:Hydrogen; Nitrous oxide; Flame speed
Issue or Number:16
Record Number:CaltechAUTHORS:20110921-080833818
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110921-080833818
Official Citation:S.P.M. Bane, R. Mével, S.A. Coronel, J.E. Shepherd, Flame burning speeds and combustion characteristics of undiluted and nitrogen-diluted hydrogen–nitrous oxide mixtures, International Journal of Hydrogen Energy, Volume 36, Issue 16, August 2011, Pages 10107-10116, ISSN 0360-3199, 10.1016/j.ijhydene.2011.04.232. (http://www.sciencedirect.com/science/article/pii/S0360319911011864)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:25379
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:21 Sep 2011 15:37
Last Modified:26 Aug 2020 16:38

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