LEADER 04369nam 22006495 450 001 9910337588503321 005 20200703080343.0 010 $a981-10-4813-4 024 7 $a10.1007/978-981-10-4813-5 035 $a(CKB)4100000007656706 035 $a(DE-He213)978-981-10-4813-5 035 $a(MiAaPQ)EBC5709974 035 $a(PPN)235004847 035 $a(EXLCZ)994100000007656706 100 $a20190215d2019 u| 0 101 0 $aeng 135 $aurnn|008mamaa 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aOptic Diagnostics on Pulverized Coal Particles Combustion Dynamics and Alkali Metal Release Behavior /$fby Ye Yuan 205 $a1st ed. 2019. 210 1$aSingapore :$cSpringer Singapore :$cImprint: Springer,$d2019. 215 $a1 online resource (XXI, 151 p. 98 illus., 87 illus. in color.) 225 1 $aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 311 $a981-10-4812-6 327 $aIntroduction -- 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. 330 $aThis book focuses on pulverized coal particle devolatilization, ignition, alkali metal release behavior, and burnout temperature using several novel optic diagnostic methods on a Hencken multi-flat flame burner. Firstly, it presents a novel multi-filter technique to detect the CH* signal during coal ignition, which can be used to characterize the volatile release and reaction process. It then offers observations on the prevalent transition from heterogeneous ignition to hetero-homogeneous ignition due to ambient temperature based on visible light signal diagnostics. By utilizing the gap between the excitation energies of the gas and particle phases, a new low-intensity laser-induced breakdown spectroscopy (PS-LIBS) is developed to identify the presence of sodium in the particle or gas phase along the combustion process. For the first time, the in-situ verification of the gas phase Na release accompanying coal devolatilization is fulfilled when the ambient temperature is high enough. In fact, particle temperature plays a vital role in the coal burnout process and ash particle formation. The last part of the book uses RGB color pyrometry and the CBK model to study the char particle temperature on a Hencken burner. It offers readers valuable information on the technique of coal ignition and combustion diagnostics as well as coal combustion characteristics. 410 0$aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 606 $aEnergy systems 606 $aChemical engineering 606 $aLasers 606 $aPhotonics 606 $aFossil fuels 606 $aMaterials science 606 $aEnergy Systems$3https://scigraph.springernature.com/ontologies/product-market-codes/115000 606 $aIndustrial Chemistry/Chemical Engineering$3https://scigraph.springernature.com/ontologies/product-market-codes/C27000 606 $aOptics, Lasers, Photonics, Optical Devices$3https://scigraph.springernature.com/ontologies/product-market-codes/P31030 606 $aFossil Fuels (incl. 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