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Combustion of Lithium Particles: Optical Measurement Methodology and Initial Results
Author(s) -
Schiemann Martin,
Fischer Peter,
Scherer Viktor,
Schmid Günter,
Taroata Dan
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400011
Subject(s) - combustion , lithium (medication) , ignition system , particle size , particle (ecology) , laminar flow , methane , chemistry , adiabatic flame temperature , materials science , analytical chemistry (journal) , thermodynamics , combustor , physics , organic chemistry , medicine , oceanography , geology , endocrinology
Combustion examinations on the single‐grain level were carried out in order to get further fundamental insight into the ignition and combustion of lithium particles. Combustion of solid lithium particles in a defined size fraction was analyzed in a laminar‐flow reactor. The exhaust gases of a methane‐air flame provided the reactants O 2 , CO 2 , N 2 , and H 2 O for the lithium conversion. Two different atmospheres at various temperatures were investigated. A high‐speed camera system measured size and radiation intensity of burning particles. The results indicate that two different combustion phenomena occurred in lithium combustion. The first was identified as a homogeneously enveloping flame around the lithium particle and the second as a reaction zone next to the particle surface.