Modeling of gaseous fuel combustion using the Eddy Break-Up model combined with fast chemistry or finite rate chemistry

A4 Konferenspublikationer


Interna författare/redaktörer


Publikationens författare: Brink A, Mueller C, Kilpinen P, Hupa M
Redaktörer: Albino Reis et al.
Förläggare: INFUB
Förlagsort: Rio Tinto
Publiceringsår: 2000
Förläggare: INFORMACAO UTILIZACAO BIOMASSAINFUB
Moderpublikationens namn: Industrial furnaces and boilers
Volym: 2
Artikelns första sida, sidnummer: 335
Artikelns sista sida, sidnummer: 343
Antal sidor: 9
ISBN: 972-8034-04-0


Abstrakt

The feasibility of using the Eddy Break-Up (EBU) model to describe stationary combustion of gaseous fuels with 1) a single-step fast irreversible reaction and 2) a multi-step reaction mechanism has been investigated. In this investigation the EBU model is used to describe the combustion in a CFD study of a semi-industrial flame. A presumed probability density function (pdf) analysis is used to explain at which conditions the EBU model, despite being based on mean quantities in the expression for the chemical reaction rate, has the capability to successfully predict the influence of reaction kinetics. At the same time, reasons are given why the EBU model should not be used with multi-step chemistry.


Nyckelord

Eddy Break-Up, finite rate chemistry, turbulence-chemistry interaction

Senast uppdaterad 2019-14-12 vid 03:06