Optic Diagnostics on Pulverized Coal Particles Combustion Dynamics and Alkali Metal Release Behavior

Ye Yuan (Autor)

Buch | Hardcover

151 Seiten

2019 | 1st ed. 2019
Springer Verlag, Singapore
978-981-10-4812-8 (ISBN)

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This book focuses on pulverized coal particle devolatilization, ignition, alkali metal release behavior, and burnout temperature using several novel optic diagnostic methods on a Hencken multi-flat flame burner. Firstly, it presents a novel multi-filter technique to detect the CH* signal during coal ignition, which can be used to characterize the volatile release and reaction process. It then offers observations on the prevalent transition from heterogeneous ignition to hetero-homogeneous ignition due to ambient temperature based on visible light signal diagnostics. By utilizing the gap between the excitation energies of the gas and particle phases, a new low-intensity laser-induced breakdown spectroscopy (PS-LIBS) is developed to identify the presence of sodium in the particle or gas phase along the combustion process. For the first time, the in-situ verification of the gas phase Na release accompanying coal devolatilization is fulfilled when the ambient temperature is high enough.In fact, particle temperature plays a vital role in the coal burnout process and ash particle formation. The last part of the book uses RGB color pyrometry and the CBK model to study the char particle temperature on a Hencken burner. It offers readers valuable information on the technique of coal ignition and combustion diagnostics as well as coal combustion characteristics.

Dr. Ye Yuan received his Ph.D. degree from the Department of Thermal Engineering, Tsinghua University, Beijing in 2016 and is currently working at the Huaneng Clean Energy Research Institute, Beijing. His Ph.D thesis was awarded “Excellent Doctoral Dissertation of Tsinghua University” in 2016.

Introduction.- Theoretical and experimental research on coal particle devolatilization.- Theoretical and experimental research on coal particle ignition mechanism.- Dynamic behavior of sodium release during coal combustion.- Theoretical and experimental research on surface temperature during char combustion.- Conclusion.

Erscheinungsdatum	15.03.2019
Reihe/Serie	Springer Theses
Zusatzinfo	87 Illustrations, color; 11 Illustrations, black and white; XXI, 151 p. 98 illus., 87 illus. in color.
Verlagsort	Singapore
Sprache	englisch
Maße	155 x 235 mm
Themenwelt	Naturwissenschaften ► Chemie ► Technische Chemie
	Technik ► Elektrotechnik / Energietechnik
	Technik ► Maschinenbau
Schlagworte	Alkali Metal Release Behavior • CH* ChemIluminescence • Coal Combustion • Coal Ignition • Combustion Dynamics • In-situ Optic Diagnostic • Na Release Behavior • Pulverized Coal Particle • RGB Color Pyrometry
ISBN-10	981-10-4812-6 / 9811048126
ISBN-13	978-981-10-4812-8 / 9789811048128
Zustand	Neuware