Please use this identifier to cite or link to this item: https://doi.org/10.1080/13647830701642227
Title: A comparative study of H2-air premixed flame in micro combustors with different physical and boundary conditions
Authors: Li, J.
Chou, S.K. 
Li, Z.W. 
Yang, W.M. 
Keywords: Boundary conditions
Flame temperature
Micro combustion
Numerical simulation
Premixed flame
Issue Date: Apr-2008
Source: Li, J., Chou, S.K., Li, Z.W., Yang, W.M. (2008-04). A comparative study of H2-air premixed flame in micro combustors with different physical and boundary conditions. Combustion Theory and Modelling 12 (2) : 325-347. ScholarBank@NUS Repository. https://doi.org/10.1080/13647830701642227
Abstract: A numerical study of H2-air premixed combustion in the micro channels with a detailed chemical reaction mechanism is performed by solving the two-dimensional fully elliptic governing equations of continuity, momentum, energy and species, coupled with the energy equation in the solid wall. A reference case is defined as the combustion in a cylindrical tube with 0.8 mm inner diameter and 8 mm length with a non-slip wall and a uniform velocity profile at the inlet plane. Different physical and boundary conditions have been applied in order to investigate their respective effects on the flame temperature. The conditions studied in the current paper include the combustor size and geometry, inlet velocity profile, axial heat conduction in the solid wall and slip-wall and temperature jump at the gas-solid interface. It is noted that effects of Knudsen number (slip-wall and temperature jump) on the thermal and fluid field are not very significant in a d = 0.4 mm micro combustor. Furthermore, the qualitative effects of Knudsen number on the flame temperature are analysed. The results of this paper indicate that these various boundary and physical conditions have effects on the flame temperature to different extent and should be carefully monitored when applied for different applications.
Source Title: Combustion Theory and Modelling
URI: http://scholarbank.nus.edu.sg/handle/10635/53972
ISSN: 13647830
DOI: 10.1080/13647830701642227
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

29
checked on Dec 6, 2017

WEB OF SCIENCETM
Citations

24
checked on Nov 21, 2017

Page view(s)

61
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.