Incineration of Surrogate Wastes in a Low Speed Dump Combustor

O.I. SMITH Department of Chemical Engineering, University of California, Los Angeles

R. MARCHANT Department of Chemical Engineering, University of California, Los Angeles

J. WILLIS Department of Mechanical, Aerospace, and Nuclear Engineering, University of California, Los Angeles

L.M. LEE Department of Mechanical, Aerospace, and Nuclear Engineering, University of California, Los Angeles

P. LOGAN Department of Mechanical, Aerospace, and Nuclear Engineering, University of California, Los Angeles

A.R. KARAGOZIAN Department of Mechanical, Aerospace, and Nuclear Engineering, University of California, Los Angeles

Abstract

An experimental study of waste surrogate (sulfur hexafluoride) destruction in a low speed dump combustor is described. The lengths of the combuslor cavity and plenum can be adjusted as a means of exciting combustion instabilities which can produce certain types of acoustic modes. In cases where the surrogate is injected either into recirculation zones within the combustor cavity or into the plenum, very high destruction and removal efficiencies (> 99.999%) can be obtained, particularly at relatively high heat release rates. Combustion instabilities are observed to play a role in the degree to which waste is destroyed, and are correlated with various acoustic modes. Under certain conditions, particularly where waste is injected into the plenum along with auxiliary fuel and oxidizer, acoustic behavior may provide a useful real-time indicator of proper incineration conditions.

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Incineration of Surrogate Wastes in a Low Speed Dump Combustor

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Incineration of Surrogate Wastes in a Low Speed Dump Combustor

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