Authors:
- Proposes a new method that detects the CH* signal during coal ignition, which can be used to characterize the volatile release and reaction process
- Observes the transition from heterogeneous ignition to hetero-homogeneous ignition based on the analysis of visible light signal
- Identifies the presence of sodium in the particle or gas phase along the combustion process by utilizing the gap between the excitation energies of the gas and particle phases, a new low-intensity laser-induced breakdown spectroscopy (PS-LIBS)
- Uses RGB color pyrometry and the CBK model to study the char particle temperature on a Hencken burner
Part of the book series: Springer Theses (Springer Theses)
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Table of contents (6 chapters)
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Front Matter
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Back Matter
About this book
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.
Authors and Affiliations
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Department of Energy and Power Engineering, Tsinghua University, Beijing, China
Ye Yuan
About the author
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.
Bibliographic Information
Book Title: Optic Diagnostics on Pulverized Coal Particles Combustion Dynamics and Alkali Metal Release Behavior
Authors: Ye Yuan
Series Title: Springer Theses
DOI: https://doi.org/10.1007/978-981-10-4813-5
Publisher: Springer Singapore
eBook Packages: Energy, Energy (R0)
Copyright Information: Springer Nature Singapore Pte Ltd. 2019
Hardcover ISBN: 978-981-10-4812-8Published: 01 March 2019
eBook ISBN: 978-981-10-4813-5Published: 15 February 2019
Series ISSN: 2190-5053
Series E-ISSN: 2190-5061
Edition Number: 1
Number of Pages: XXI, 151
Number of Illustrations: 11 b/w illustrations, 87 illustrations in colour
Topics: Energy Systems, Industrial Chemistry/Chemical Engineering, Optics, Lasers, Photonics, Optical Devices, Fossil Fuels (incl. Carbon Capture), Characterization and Evaluation of Materials