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- Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames
Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames
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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.
Folgt in ca. 10 Arbeitstagen