Article(id=1325115500736422568, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1325114904314786565, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1287849600000, receivedDateStr=2010-10-24, revisedDate=1296403200000, revisedDateStr=2011-01-31, acceptedDate=null, acceptedDateStr=null, onlineDate=1793861754831, onlineDateStr=2026-11-05, pubDate=1344960000000, pubDateStr=2012-08-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793861754831, onlineIssueDateStr=2026-11-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793861754831, creator=13701087609, updateTime=1793861754831, updator=13701087609, issue=Issue{id=1325114904314786565, tenantId=1146029695717560320, journalId=1255847867265597444, year='2012', volume='26', issue='4', pageStart='361', pageEnd='480', issueExtLink='null', onlineDate='null', pubDate='1344960000000', pubDateStr='2012-08-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793861612632, creator='13701087609', updateTime=1793861612632, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=455, endPage=461, ext={EN=ArticleExt(id=1325115501613032105, articleId=1325115500736422568, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Flame Propagation and Combustion in Methane-Coal-Air Mixture, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

Combustion and explosion experiments are carried out in an explosion tank of 10 m3 for the mixture of 8% methane-75 g/m3 coal dust-air. Optical method and pressure method are adopted to obtain the laminar burning velocity, flame speed, flame thickness, Markstein length as well as the explosibility index of the mixture when the flame spread. The results show that the burning velocity of the mixture of methane-coal dust-air is 0.437 m/s, while the value is 0.459 m/s according to the relationship between pressure and time, and the results from the two methods are coincide. The flames trends determined by flame thickness and Markstein length are the same, and both tend towards stability. The maximum of explosibility index occurs at 0.5 m, and the explosibility index at the wall of explosion chamber is a bit small.

, authors=Fang NIU, Qing-Ming LIU, Chun-Hua BAI, Xue-Qiu HE, Guang-Dong GONG, authorsList=Fang NIU, Qing-Ming LIU, Chun-Hua BAI, Xue-Qiu HE, Guang-Dong GONG, authorCompany=null, correspAuthors=Qing-Ming LIU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1325115502456087210, articleId=1325115500736422568, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=甲烷-煤尘爆炸物火焰传播特性, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

在10 m3的爆炸罐中对体积分数为8%的甲烷和75 g/m3煤尘的混合物进行了系统的燃烧爆炸实验。分别利用光测方法和压力方法得到了爆炸物的层流燃烧速度、火焰传播速度、火焰厚度、马克斯坦长度以及爆炸特征值的变化规律。结果表明,在常温常压下,当点火能为40 J时:利用光测法得到的8%甲烷与75 g/m3煤尘混合物的燃烧速度为0.437 m/s,而根据压力-时间关系得到的混合物燃烧速度为0.459 m/s,两者符合较好;用火焰厚度与马克斯坦长度判定的火焰发展趋势相同,即向外传播的火焰趋于稳定;爆炸物的爆炸特征值最大值出现在0.5 m处,壁面的爆炸特征值偏小。

, authors=牛芳, 刘庆明, 白春华, 何学秋, 宫广东, authorsList=牛芳, 刘庆明, 白春华, 何学秋, 宫广东, authorCompany=null, correspAuthors=刘庆明, authorNote=

牛芳(1986—),女,博士,主要从事多相混和物火焰传播特性研究. E-mail:

, correspAuthorsNote=
刘庆明(1963-),男,博士,教授,博士生导师,主要从事多相云雾燃烧爆炸与爆轰理论与应用研究. E-mail:
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牛芳(1986—),女,博士,主要从事多相混和物火焰传播特性研究. E-mail:

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牛芳(1986—),女,博士,主要从事多相混和物火焰传播特性研究. E-mail:

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甲烷-煤尘爆炸物火焰传播特性
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牛芳 , 刘庆明 , 白春华 , 何学秋 , 宫广东
高压物理学报 | 2012,26(4): 455-461
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高压物理学报 | 2012 , 26 (4) : 455 -461
甲烷-煤尘爆炸物火焰传播特性
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牛芳 , 刘庆明 , 白春华, 何学秋, 宫广东
作者信息
  • 北京理工大学爆炸科学与技术国家重点实验室,北京 100081
通讯作者:
刘庆明(1963-),男,博士,教授,博士生导师,主要从事多相云雾燃烧爆炸与爆轰理论与应用研究. E-mail:
作者简介:

牛芳(1986—),女,博士,主要从事多相混和物火焰传播特性研究. E-mail:

Flame Propagation and Combustion in Methane-Coal-Air Mixture
Fang NIU , Qing-Ming LIU , Chun-Hua BAI, Xue-Qiu HE, Guang-Dong GONG
Affiliations
  • State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
出版时间: 2012-08-15
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在10 m3的爆炸罐中对体积分数为8%的甲烷和75 g/m3煤尘的混合物进行了系统的燃烧爆炸实验。分别利用光测方法和压力方法得到了爆炸物的层流燃烧速度、火焰传播速度、火焰厚度、马克斯坦长度以及爆炸特征值的变化规律。结果表明,在常温常压下,当点火能为40 J时:利用光测法得到的8%甲烷与75 g/m3煤尘混合物的燃烧速度为0.437 m/s,而根据压力-时间关系得到的混合物燃烧速度为0.459 m/s,两者符合较好;用火焰厚度与马克斯坦长度判定的火焰发展趋势相同,即向外传播的火焰趋于稳定;爆炸物的爆炸特征值最大值出现在0.5 m处,壁面的爆炸特征值偏小。

燃烧速度  /  爆炸特征值  /  火焰稳定性  /  火焰传播速度

Combustion and explosion experiments are carried out in an explosion tank of 10 m3 for the mixture of 8% methane-75 g/m3 coal dust-air. Optical method and pressure method are adopted to obtain the laminar burning velocity, flame speed, flame thickness, Markstein length as well as the explosibility index of the mixture when the flame spread. The results show that the burning velocity of the mixture of methane-coal dust-air is 0.437 m/s, while the value is 0.459 m/s according to the relationship between pressure and time, and the results from the two methods are coincide. The flames trends determined by flame thickness and Markstein length are the same, and both tend towards stability. The maximum of explosibility index occurs at 0.5 m, and the explosibility index at the wall of explosion chamber is a bit small.

burning velocity  /  explosibility index  /  flame stability  /  flame speed
牛芳, 刘庆明, 白春华, 何学秋, 宫广东. 甲烷-煤尘爆炸物火焰传播特性. 高压物理学报, 2012 , 26 (4) : 455 -461 .
Fang NIU, Qing-Ming LIU, Chun-Hua BAI, Xue-Qiu HE, Guang-Dong GONG. Flame Propagation and Combustion in Methane-Coal-Air Mixture[J]. Chinese Journal of High Pressure Physics, 2012 , 26 (4) : 455 -461 .
  • 国家自然科学基金(10772032)
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2012年第26卷第4期
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  • 接收时间:2010-10-24
  • 首发时间:2026-11-05
  • 出版时间:2012-08-15
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  • 收稿日期:2010-10-24
  • 修回日期:2011-01-31
基金
国家自然科学基金(10772032)
作者信息
    北京理工大学爆炸科学与技术国家重点实验室,北京 100081

通讯作者:

刘庆明(1963-),男,博士,教授,博士生导师,主要从事多相云雾燃烧爆炸与爆轰理论与应用研究. E-mail:
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2种不同金属材料的力学参数
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属
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species
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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