Pyrolysis and Ignition Characteristics of Pulverized Coal ParticlesSource: Journal of Energy Resources Technology:;2001:;volume( 123 ):;issue: 001::page 32Author:Masayuki Taniguchi
,
Hidetaka Muto
,
Toshikazu Tsumura
,
Hirofumi Okazaki
,
Hironobu Kobayashi
,
Shigeru Azuhata
,
Hiroshi Miyadera
DOI: 10.1115/1.1347989Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pyrolysis and ignition characteristics of pulverized coals were examined under similar burning conditions to those of industrial burners. In the early stage, fine particles (less than 37 μm) were mainly pyrolyzed by convective heat transfer from surrounding gas. The coals ignited when pyrolyzed volatile matter mixed with surrounding air and formed a combustible mixture. Pyrolysis of large particles was delayed, but accelerated after ignition by radiant heat transfer from coal flames. The effects of radiant heat transfer were strong for intermediate-size particles (37–74 μm). Ignition temperature was examined analytically by using a modified distributed activation energy model for pyrolysis. The calculated results agreed with experimental ones obtained from both laboratory-scale and semi-industrial-scale burners.
keyword(s): Temperature , Particulate matter , Coal , Ignition , Pyrolysis , Combustion , Matter AND Flames ,
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| contributor author | Masayuki Taniguchi | |
| contributor author | Hidetaka Muto | |
| contributor author | Toshikazu Tsumura | |
| contributor author | Hirofumi Okazaki | |
| contributor author | Hironobu Kobayashi | |
| contributor author | Shigeru Azuhata | |
| contributor author | Hiroshi Miyadera | |
| date accessioned | 2017-05-09T00:04:41Z | |
| date available | 2017-05-09T00:04:41Z | |
| date copyright | March, 2001 | |
| date issued | 2001 | |
| identifier issn | 0195-0738 | |
| identifier other | JERTD2-26494#32_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/125111 | |
| description abstract | Pyrolysis and ignition characteristics of pulverized coals were examined under similar burning conditions to those of industrial burners. In the early stage, fine particles (less than 37 μm) were mainly pyrolyzed by convective heat transfer from surrounding gas. The coals ignited when pyrolyzed volatile matter mixed with surrounding air and formed a combustible mixture. Pyrolysis of large particles was delayed, but accelerated after ignition by radiant heat transfer from coal flames. The effects of radiant heat transfer were strong for intermediate-size particles (37–74 μm). Ignition temperature was examined analytically by using a modified distributed activation energy model for pyrolysis. The calculated results agreed with experimental ones obtained from both laboratory-scale and semi-industrial-scale burners. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Pyrolysis and Ignition Characteristics of Pulverized Coal Particles | |
| type | Journal Paper | |
| journal volume | 123 | |
| journal issue | 1 | |
| journal title | Journal of Energy Resources Technology | |
| identifier doi | 10.1115/1.1347989 | |
| journal fristpage | 32 | |
| journal lastpage | 38 | |
| identifier eissn | 1528-8994 | |
| keywords | Temperature | |
| keywords | Particulate matter | |
| keywords | Coal | |
| keywords | Ignition | |
| keywords | Pyrolysis | |
| keywords | Combustion | |
| keywords | Matter AND Flames | |
| tree | Journal of Energy Resources Technology:;2001:;volume( 123 ):;issue: 001 | |
| contenttype | Fulltext |