Evaluation of line brattice length in an empty heading to improve air flow rate at the face using CFD

查看全文 作　　者：Feroze [1]Tariq;Genc [1]Bekir

机构地区：[1]School of Mining Engineering,University of the Witwatersrand,Johannesburg 2050,South Africa

出　　处：《International Journal of Mining Science and Technology》索引2017年第27卷第2期,共7页

基　　金：the financial assistance required to purchase the high performance PC and the CFD software 摘　　要：The effectiveness of line brattice(LB) ventilation system depends on the associated system variables.However, the effect of these variables on the air flow rates close to the face of the heading is not extensively studied. In this paper, the effect of the LB length in relation to the LB-wall distance on the air flow rate reaching the face is analysed. Scenarios were developed using four LB lengths, two LB-wall distances and two heading depths. These scenarios were simulated with a validated CFD model. The air flow rates and patterns at various locations inside the heading were analysed. This helped to find the minimum LB-face distance that should be maintained for each LB-wall distance to maximise the air flow rate at the face. The minimum length when used will improve ventilation and reduce energy cost. 关键词：空气流量最小长度 CFD模型评价航向通风系统距离和深度开发

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Evaluation of line brattice length in an empty heading to improve air flow rate at the face using CFD

参考文献(19)

引证文献(3)

耦合文献(94)

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