期刊文献+

降低井下宣传牌板局部风阻对策探讨

Discussion on Decreasing Local Wind Resistance of underground Propagation Plate
下载PDF
导出
摘要 建立了井下巷道内常用的棱台、半圆柱、棱柱三种形状宣传牌板局部风阻计算模型,通过能量守恒方程验算,提出了降低局部通风阻力的措施建议。研究结果表明,在相同条件下,半圆柱式和棱柱式宣传牌板所产生的通风阻力明显小于棱台式宣传牌板所产生的通风阻力,并且半圆柱式效果要优于棱柱式。 Based on the check of energy conservation equation ,the paper puts forward measures of reducing local ventilation resistance by ,establishing a local wind resistance calculation of three types of board,which is commonly used in underground roadway,such as prism, semi-cylinder and prism.Research indicated that under the same conditions ,the ventilation resistance produced by semi-cylindrical publicity boards and prismatic publicity boards is significantly less than the ventilation resistance produced by prism-type publicity boards, and semi- cylindrical effect is better than the prism.
作者 孔繁华
出处 《江西煤炭科技》 2016年第4期143-144,共2页 Jiangxi Coal Science & Technology
关键词 局部风阻 牌板 能量守恒方程 local wind resistance plate energy conservation equation
  • 相关文献

参考文献4

二级参考文献11

共引文献56

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部