Zhang, Yang.

Propagation and Extinction Studies of Laminar Lean Premixed Syngas/Air Flames [electronic resource] / by Yang Zhang. - 1st ed. 2018. - XVIII, 127 p. 50 illus., 40 illus. in color. online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5061 . - Springer Theses, Recognizing Outstanding Ph.D. Research, .

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.

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.

9789811046155

10.1007/978-981-10-4615-5 doi


Fluid mechanics.
Thermodynamics.
Heat engineering.
Heat transfer.
Mass transfer.
Energy policy.
Energy and state.
Engineering Fluid Dynamics.
Engineering Thermodynamics, Heat and Mass Transfer.
Thermodynamics.
Energy Policy, Economics and Management.

TA357-359

620.1064