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An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures

Abstract

The catalytically stabilised thermal combustion (CST) of lean hydrogen-air mixtures was investigated numerically in a turbulent channel flow configuration using a two-dimensional elliptic model with detailed heterogeneous and homogeneous chemical reactions. Comparison between turbulent and laminar cases having the same incoming mean properties shows that turbulence inhibits homogeneous ignition due to increased heat transport away from the near-wall layer. The peak root-mean-square temperature and species fluctuations are always located outside the extent of the homogeneous reaction zone indicating that thermochemical fluctuations have no significant influence on gaseous combustion. (author) 4 figs., 6 refs.
Authors:
Mantzaras, I; Benz, P; Schaeren, R; Bombach, R [1] 
  1. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Publication Date:
Aug 01, 1999
Product Type:
Technical Report
Report Number:
ETDE-CH-9901
Reference Number:
SCA: 083000; PA: CH-99:0E0036; EDB-99:090599; SN: 99002111478
Resource Relation:
Other Information: PBD: 1999; Related Information: Is Part Of Paul Scherrer Institute Scientific Report 1998. Volume V: General Energy; Daum, C.; Leuenberger, J. [eds.]; PB: 121 p.
Subject:
08 HYDROGEN FUEL; COMBUSTION; EXPERIMENTAL DATA; HYDROGEN; LAMINAR FLOW; PROGRESS REPORT; TURBULENT FLOW
OSTI ID:
685693
Research Organizations:
Paul Scherrer Inst. (PSI), Villigen (Switzerland)
Country of Origin:
Switzerland
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1423-7342; Other: ON: DE99754426; TRN: CH99E0036
Availability:
OSTI as DE99754426
Submitting Site:
CH
Size:
pp. 70-71
Announcement Date:

Citation Formats

Mantzaras, I, Benz, P, Schaeren, R, and Bombach, R. An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures. Switzerland: N. p., 1999. Web.
Mantzaras, I, Benz, P, Schaeren, R, & Bombach, R. An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures. Switzerland.
Mantzaras, I, Benz, P, Schaeren, R, and Bombach, R. 1999. "An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures." Switzerland.
@misc{etde_685693,
title = {An investigation of turbulent catalytically stabilized channel flow combustion of lean hydrogen - air mixtures}
author = {Mantzaras, I, Benz, P, Schaeren, R, and Bombach, R}
abstractNote = {The catalytically stabilised thermal combustion (CST) of lean hydrogen-air mixtures was investigated numerically in a turbulent channel flow configuration using a two-dimensional elliptic model with detailed heterogeneous and homogeneous chemical reactions. Comparison between turbulent and laminar cases having the same incoming mean properties shows that turbulence inhibits homogeneous ignition due to increased heat transport away from the near-wall layer. The peak root-mean-square temperature and species fluctuations are always located outside the extent of the homogeneous reaction zone indicating that thermochemical fluctuations have no significant influence on gaseous combustion. (author) 4 figs., 6 refs.}
place = {Switzerland}
year = {1999}
month = {Aug}
}