NUMERICAL INVESTIGATION OF A POROUS MATRIX COMBUSTOR-HEATER

This article is concerned with the transient behavior and thermal performance of a porous matrix combustor-heater in which combustion and heat transfer among the different phases (i.e., the solid matrix, the gas flowing in the packed bed, and the coolant flowing through the tubes) are considered. Th...

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Bibliographic Details
Published inNumerical heat transfer. Part A, Applications Vol. 36; no. 4; pp. 359 - 374
Main Author Viskanta, Yimin Xuan, R.
Format Journal Article
LanguageEnglish
Published London Informa UK Ltd 01.09.1999
Taylor & Francis
Subjects
20 FOSSIL-FUELED POWER PLANTS
AIR POLLUTION ABATEMENT
Algorithms
Applied sciences
Axial flow
Combustion
COMBUSTION KINETICS
Combustion. Flame
COMBUSTORS
COMPUTER-AIDED DESIGN
Energy
Energy. Thermal use of fuels
Exact sciences and technology
HEAT TRANSFER
HEATERS
Nonlinear equations
NUMERICAL ANALYSIS
PACKED BEDS
POROUS MATERIALS
Temperature distribution
Theoretical studies
Theoretical studies. Data and constants. Metering
Tubes (components)
Methane
Combustion chamber
Tube bundle
Porous medium
Numerical simulation
Combustion
Performance
Heat transfer
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Summary:This article is concerned with the transient behavior and thermal performance of a porous matrix combustor-heater in which combustion and heat transfer among the different phases (i.e., the solid matrix, the gas flowing in the packed bed, and the coolant flowing through the tubes) are considered. The governing equations for describing combustion and heat transfer processes are nonlinear and coupled. Under the assumption that axial flow of the gas is predominant, these equations are numerically solved for a typical cell in order to obtain the transient three-dimensional distributions of temperatures and of the fuel mass fraction. The numerical algorithm developed provides the tools for analyzing the effects of operating and geometrical parameters on the performance of a porous matrix combustor-heater and for optimizing design and operation of the unit. Numerical results for some examples are given.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1040-7782
1521-0634
DOI:10.1080/104077899274697