...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Philosophy of longwall goaf inertisation for coal self-heating control, proactive or reactive?
【24h】

Philosophy of longwall goaf inertisation for coal self-heating control, proactive or reactive?

机译：Longwall Goof的哲学偶尔煤自加热控制，主动或反应？

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Self-heating of coal mass has been a long-standing thermal dynamic hazard and also an environmental concern during coal mining, processing, and storage. Especially self-heating of coal in longwall goaf poses a great danger to underground working crew and goaf inertisation is often practiced to combat the hazard. To investigate goaf inertisation with more insights regarding two different philosophies (i.e. proactive and reactive), a three-dimensional non-equilibrium thermal CFD model was developed to study heating evolution and a range of inertisation plans in a modern longwall. The theoretical model mainly incorporated a set of governing equations (e.g. energy conservation, continuity, and momentum balance) and coal oxidation kinetics which are determined by an adiabatic coal heating test. A comprehensive inertisation plan is developed. At initial stage of mining, a proactive inertisation plan is recommended because a heating in start-up area can develop to a fire incident if precautions are not implemented. While a reactive inertisation is suggested after longwall advancing a certain distance as the heating behind longwall face can be left in the fully suffocated zone before escalating to an advanced stage. (C) 2019 Elsevier Ltd. All rights reserved.
机译：煤炭质量的自加热是一种长期的热动力危害，也是煤炭开采，加工和储存期间的环境问题。特别是在长墙果实中的煤炭的自我加热对地下工作人员构成了极大的危险，并且常常致力于打击危险的GOF偶然。为了研究GAF偶实，更有关于两个不同的哲学（即主动和反应），开发了一种三维非平衡热CFD模型，以研究现代长墙中的加热演化和一系列惰性计划。理论模型主要通过绝热煤加热试验确定了一组控制方程（例如节能，连续性和动量平衡）和煤氧化动力学。开发了全面的偶然计划。在初期采矿阶段，建议采用主动偶于计划，因为如果未实施预防措施，启动区域的加热可能会导致火灾事件。虽然在长壁前进后建议了反应性惰性，但由于长壁面的加热可以在升级到高级阶段之前留在完全窒息的区域中。 （c）2019 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2019年第10期|542-553|共12页
  • 作者

    Zhang Jian; An Jingyu; Wang Yungang; Al Mamun Nahid Akter; Pan Rongkun;

  • 作者单位

    Henan Polytech Univ State Key Lab Cultivat Base Gas Geol & Gas Contro Jiaozuo 454000 Henan Peoples R China|Henan Polytech Univ Collaborat Innovat Ctr Coal Safety Prod Henan Jiaozuo 454000 Henan Peoples R China|Henan Polytech Univ Coll Safety Sci & Engn Jiaozuo 454000 Henan Peoples R China;

    Henan Polytech Univ Coll Safety Sci & Engn Jiaozuo 454000 Henan Peoples R China;

    Henan Polytech Univ State Key Lab Cultivat Base Gas Geol & Gas Contro Jiaozuo 454000 Henan Peoples R China|Henan Polytech Univ Collaborat Innovat Ctr Coal Safety Prod Henan Jiaozuo 454000 Henan Peoples R China|Henan Polytech Univ Coll Safety Sci & Engn Jiaozuo 454000 Henan Peoples R China;

    Henan Polytech Univ Coll Safety Sci & Engn Jiaozuo 454000 Henan Peoples R China;

    Henan Polytech Univ Coll Safety Sci & Engn Jiaozuo 454000 Henan Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Spontaneous combustion; Coal; Proactive inertisation; Reactive inertisation;

    机译：自发燃烧;煤;积极偶于;反应偶;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号