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Abstract

Previous approaches to the modelling of gas-side fouling are based on calculation of the overall residence probabilities for particulate fouling. This paper reports the development of a methodology for quantifying non-particulate mechanisms of deposition, based on measurements from a refuse incineration plant at Toulon. If the chemical composition of different size fractions of gas-borne particulates is known and the composition of deposits, then any difference between the two is the result of either uneven deposition from particulate species or non-particulate deposition. Results show that deposition in refuse incineration is related to the gas stream temperature, with an increase at about 700 C which accords well with the observed melting behaviour of the deposited material. This deposition results from a complex set of processes including inertial impaction, enhanced retention of inertially impacted particles rich in Ca, small particle deposition and condensation deposition.

Additional information

Authors: HOWARTH J H, National Engineering Laboratory, East Kilbride, Glasgow (GB);TABARIES F, Construction Industrielles de la Méditerranée, la Seyne-sur-Mer (FR);DURAND J-P, Construction Industrielles de la Méditerranée, la Seyne-sur-Mer (FR)
Bibliographic Reference: Paper presented: 23 EUROTHERM Seminar, Grenoble (FR), April 8-9, 1992
Availability: Available from (1) as Paper EN 37003 ORA
Record Number: 199210986 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en