Title Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames / by Yang Zhang

Published Singapore : Springer Singapore : Imprint : Springer, 2018 ©2018

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Description 1 online resource (xviii, 127 pages : 50 illustrations, 40 illustrations in color) Series Springer Theses, Recognizing Outstanding Ph. D. Research, 2190-5053 Springer Theses, Recognizing Outstanding Ph. D. Research, 2190-5053 Contents Introduction -- Experimental Approach 35 -- Numerical Approach -- Laminar flame speed of lean premixed H2/CO/air flames 71 -- Extinction limit of lean premixed H2/CO/air flames -- Lower flammability limit of H2/CO mixtures -- Dilution effect on the propagation and extinction of lean premixed syngas/air flames 139 -- Conclusion and recommendation -- Nomenclature Summary This thesis presents pioneering experimental and numerical studies on three aspects of the combustion characteristics of lean premixed syngas/air flames, namely the laminar flame speed, extinction limit and flammability limit. It illustrates a new extinction exponent concept, which enriches the combustion theory. Above all, the book provides the following: a) a series of carefully measured data and theoretical analyses to reveal the intrinsic mechanisms of the fuel composition effect on the propagation and extinction of lean syngas/air flames; b) a mixing model and correlation to predict the laminar flame speed of multi-component syngas fuels, intended for engineering computations; c) a new "extinction exponent" concept to describe the critical effects of chemical kinetics on the extinction of lean premixed syngas/air flames; and d) the effects and mechanism of the dilution of incombustible components on lean premixed syngas/air flames and the preferential importance among the thermal, chemical and diffusion effects Bibliography Includes bibliographical references Subject Combustion engineering. Synthesis gas. Thermodynamics. Laminar flow. Heat engineering. Heat -- Transmission. Mass transfer. Fluid mechanics. thermodynamics. heat transmission. TECHNOLOGY & ENGINEERING -- Chemical & Biochemical. Laminar flow Combustion engineering Thermodynamics Mass transfer Heat -- Transmission Heat engineering Fluid mechanics Engineering Synthesis gas Form Electronic book ISBN 9789811046155 9811046158

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