期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 51, 期 9-10, 页码 2190-2198出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2007.11.017
关键词
filtration combustion; lean combustibility limit; porous media; volatile organic compounds
Analytical and numerical investigation of methane-air lean combustibility limit (LCL) in reciprocal flow filtration combustion reactor was performed. Practically important parameters (heat loss coefficient, reactor length, pressure, particles size, porosity) were varied and corresponding sets of LCL curves were built. Existence of extremum at LCL - gas flow rate function is found. Numerical study shows that the porous media particle size is the most important factor for LCL control. Smaller particles provide lower LCL and reduce steepness of the growing branch of the LCL-gas flow rate function. For the particles smaller than 2 mm the corresponding LCL line goes down monotonously. High pressure in the system provides better LCL, which may be used for stabilization of the reactors operating at near LCL regimes. (C) 2007 Elsevier Ltd. All rights reserved.
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