Combustion of solid fuel in a hybrid porous reactor

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Jovicic V, Fedorova N, Zbogar-Rasic A, Makongue Nloka DEG, Reichert FR, Delgado A
Zeitschrift: Energy Procedia
Verlag: Elsevier Ltd
Jahr der Veröffentlichung: 2017
Band: 120
Seitenbereich: 431-438
ISSN: 1876-6102
Sprache: Englisch


Abstract

One of the most significant
human-made methane emission sources is the municipal solid waste (MSW),
deposited on sanitary landfills and open dumps [1,2]. Within this work,
an alternative MSW treatment concept is presented, which could provide a
relatively clean waste/biomass-to-energy transformation. The proposed
procedure comprises of a combustion and a gasification (or pyrolysis)
step, which are consecutively taking place in a two-stage hybrid porous
reactor system. The core of the system are two packed bed reactors, in
which solid fuel (waste or biomass) is mixed with inert ceramic
particles of similar size.

This paper overviews the
initial experimental investigation of the combustion step of a hybrid
mixture, composed of wood pellets (fuel) and alumina balls (inert
ceramic particles) in a 250 mm-high batch reactor. The temperature
profile along the reactor, the concentration of CO and the flame front
propagation velocity were measured as a function of the ceramic particle
size (11 and 20 mm), the inert-to-fuel mass ratio (0:1, 2:1, 3:1) and
the airflow rate (30, 42, 60 l/min).

Experiments
indicate that an increase of the mass ratio of inert-to-fuel material
and a decrease of the inert ceramic particles size lead to a decrease of
the maximum temperature of the packed hybrid bed. Measured CO
concentrations showed strong dependence on the inert ceramic particle
size, i.e. the particle size reduction from 20 to 11 mm resulted in a
significant reduction of CO-emission peaks. The maximum flame front
propagation velocity of 0.2 mm/sec was detected for the airflow of 42
l/min, the particle size of 20 mm and the mass ratio of 3:1.


FAU-Autoren / FAU-Herausgeber

Delgado, Antonio Prof. Dr.-Ing.
Lehrstuhl für Strömungsmechanik
Fedorova, Nataliia
Lehrstuhl für Strömungsmechanik
Jovicic, Vojislav
Lehrstuhl für Strömungsmechanik
Reichert, Fernando Rafael
Lehrstuhl für Strömungsmechanik
Zbogar-Rasic, Ana Dr.-Ing.
Lehrstuhl für Strömungsmechanik


Zitierweisen

APA:
Jovicic, V., Fedorova, N., Zbogar-Rasic, A., Makongue Nloka, D.E.G., Reichert, F.R., & Delgado, A. (2017). Combustion of solid fuel in a hybrid porous reactor. Energy Procedia, 120, 431-438. https://dx.doi.org/10.1016/j.egypro.2017.07.202

MLA:
Jovicic, Vojislav, et al. "Combustion of solid fuel in a hybrid porous reactor." Energy Procedia 120 (2017): 431-438.

BibTeX: 

Zuletzt aktualisiert 2019-13-02 um 13:50