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Titre du Document
Calculation of combustion gas flow rate and residence time based on stack gas data
Auteur(s)
EICHER A. R. ; FELDMAN Joyce (Editeur scientifique) ; HO Thomas (Editeur scientifique)
Résumé
In many situations, it is desired to estimate the combustion chamber gas residence time of operating combustion systems. This is typically accomplished by performing a mass and energy balance around the combustion chamber. Unfortunately, the detailed physical, chemical, and thermodynamic data needed for each of the feed streams, effluents, and combustion gases are often not readily available. Further, a rigorous mass and energy balance calculation can be time-consuming unless a computerized routine is available. It is possible, however, to calculate the combustion gas flow rate and the gas phase residence time of a combustion chamber when only stack gas data and the combustion chamber temperature are available. The technique presented is applicable to systems that incorporate adiabatic saturation cooling of the flue gas using direct water evaporation in a quench chamber or similar device. The technique can be extended to systems in which adiabatic saturation cooling is not achieved (i.e. partial quenching) or those systems incorporating external heat removal (i.e. boilers, indirect scrubber water cooling, etc). The procedure for determining the combustion chamber flow rate utilizes the concept of a mass and energy balance (in a simplified form) to relate stack gas data to combustion chamber conditions. In the case of a system using adiabatic saturation cooling, the energy in the hot combustion gas is used to directly evaporate water sprayed into the combustion gas stream. The
Editeur
Elsevier Science; Elsevier Science
Type du document
Conférence : IT3 Incineration and Thermal Treatment Technologies. International Conference, Orlando, Florida, USA, 1999-05
Identifiant
ISSN : 0956-053X
Source
Waste management (Elmsford) A. 2000, vol. 20, n° 5-6, pp. 403-407
Langue
Anglais
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