The University of Southampton
University of Southampton Institutional Repository

Hydrogen-enriched nonpremixed jet flames: effects of preferential diffusion

Hydrogen-enriched nonpremixed jet flames: effects of preferential diffusion
Hydrogen-enriched nonpremixed jet flames: effects of preferential diffusion
Influence of preferential diffusion on the dynamics of hydrogen and syngas nonpremixed impinging jet flames was studied using direct numerical simulation and flamelet generated manifolds based on detailed chemical kinetics. The results presented in this study were obtained from a uniform Cartesian grid with 768 × 768 × 768 points. Reynolds number used was Re = 2000, based on the reference quantities. Results reported here indicate that the preferential diffusion significantly affects the structures and the maximum temperature of the hydrogen flame, which deviates significantly from the results obtained without considering the preferential diffusion. The preferential diffusion results in a shift in the equivalence ratio in the reaction zone to leaner conditions. Moreover, the numerical results suggest that the preferential diffusion influences the flame–wall interaction and thus wall heat transfer, which is critical for the design of combustion equipment for clean combustion applications with high hydrogen contents in the fuel.
0360-3199
4848-4863
Ranga Dinesh, K.K.J.
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Jiang, X.
008a11fa-f330-4355-b5c6-2878d1ab0f5c
van Oijen, J.
72021a7c-153e-43f9-b411-81492b13afd5
Bastiaans, R.
7c9045c2-33ed-4154-a8e7-d8435f4ee14f
de Goey, L.
aa1511d3-3e5c-4a0f-a092-a8160bb805dc
Ranga Dinesh, K.K.J.
6454b22c-f505-40f9-8ad4-a1168e8f87cd
Jiang, X.
008a11fa-f330-4355-b5c6-2878d1ab0f5c
van Oijen, J.
72021a7c-153e-43f9-b411-81492b13afd5
Bastiaans, R.
7c9045c2-33ed-4154-a8e7-d8435f4ee14f
de Goey, L.
aa1511d3-3e5c-4a0f-a092-a8160bb805dc

Ranga Dinesh, K.K.J., Jiang, X., van Oijen, J., Bastiaans, R. and de Goey, L. (2013) Hydrogen-enriched nonpremixed jet flames: effects of preferential diffusion. International Journal of Hydrogen Energy, 38 (11), 4848-4863. (doi:10.1016/j.ijhydene.2013.01.171).

Record type: Article

Abstract

Influence of preferential diffusion on the dynamics of hydrogen and syngas nonpremixed impinging jet flames was studied using direct numerical simulation and flamelet generated manifolds based on detailed chemical kinetics. The results presented in this study were obtained from a uniform Cartesian grid with 768 × 768 × 768 points. Reynolds number used was Re = 2000, based on the reference quantities. Results reported here indicate that the preferential diffusion significantly affects the structures and the maximum temperature of the hydrogen flame, which deviates significantly from the results obtained without considering the preferential diffusion. The preferential diffusion results in a shift in the equivalence ratio in the reaction zone to leaner conditions. Moreover, the numerical results suggest that the preferential diffusion influences the flame–wall interaction and thus wall heat transfer, which is critical for the design of combustion equipment for clean combustion applications with high hydrogen contents in the fuel.

Text
__soton.ac.uk_ude_personalfiles_users_jkk1d12_mydesktop_RANGADINESH_SOTON2013TO2017_JournalPapersforEprints_2013_HE1_2013.doc - Author's Original
Download (4MB)

More information

Published date: 15 April 2013
Organisations: Engineering Science Unit

Identifiers

Local EPrints ID: 351813
URI: http://eprints.soton.ac.uk/id/eprint/351813
ISSN: 0360-3199
PURE UUID: a1bc3121-c08c-4364-85cd-44fc9b3ec67d
ORCID for K.K.J. Ranga Dinesh: ORCID iD orcid.org/0000-0001-9176-6834

Catalogue record

Date deposited: 25 Apr 2013 13:24
Last modified: 07 Aug 2019 00:33

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×