2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 2. Dodds Intl. Symp. / Energy Production
| Editors: | Kongoli F, Buhl A, Turna T, Mauntz M, Williams W, Rubinstein J, Fuhr PL, Morales-Rodriguez M |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 306 pages |
| ISBN: | 978-1-987820-63-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Nonuniformity of Filtration Combustion Front of Multicomponent Fuel Mixtures
Dmitry Podlesnyy1; Eugene Salgansky1; Andrey Zaichenko1;1IPCP RAS, Chernogolovka, Russian Federation;
Type of Paper: Regular
Id Paper: 376
Topic: 17
Abstract:
Upon studying the processes of filtration combustion in a porous system containing a solid fuel and a porous incombustible material with forced filtration of a gaseous oxidant, there are a number of cases where the appearance and development of an instability of the combustion front can be observed. One of the reasons for the instability of the plane combustion front is a violation of the homogeneity of the gaseous oxidant filtration due to the burning out of the fuel from the initial mixture. The instability can also be determined by the difference in the filtration properties of the starting materials and solid combustion products.
One way to stabilize the combustion front is to use an inclined rotating reactor. The type of reactor used allows the merits of rotating furnaces (in particular, mixing of raw materials) to be combined with the advantages of filtration combustion in a dense layer - effective heat recovery in the combustion zone and, as a consequence, high process efficiency. In an inclined rotating reactor the combustion process can be stabilized by suppressing the instabilities of the flat combustion front by mixing the material. In this connection, the work is devoted to an experimental study of the stability of the filtration combustion front for a carbon-containing solid fuel in an inclined rotating reactor.
Thus, experimental studies of multicomponent fuel mixtures combustion have been carried out at different inclinations of the reactor, and the boundaries of the steady flow of the process for each of the angles were determined, depending on the percentage of the fine fraction, with a fuel content of 50%. The boundaries of the steady flow of the process were determined depending on the percentage of the fine fraction, the fuel content in the mixture being 30, 50 and 70% with the angle of inclination of the reactor of 45 degrees.