Friction factor correlation for airflow through broken rocks and its applications in mine ventilation

被引：13

作者：

Amiri, Leyla ^{[1
]}

Ghoreishi-Madiseh, Seyed Ali ^{[2
]}

Hassani, Ferri P. ^{[1
]}

Sasmito, Agus P. ^{[1
]}

机构：

[1] McGill Univ, Dept Min & Mat Engn, Montreal, PQ H3A 2A7, Canada

[2] Univ British Columbia, Norman B Keevil Inst Min Engn, Vancouver, BC V6T 1Z4, Canada

来源：

INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY | 2020年 / 30卷 / 04期

关键词：

Broken rock; Fractured rock; Packed rock bed; Large particle; Pressure drop; Friction factor; THERMAL-ENERGY STORAGE; PACKED-BED; PRESSURE-DROP; SYSTEM; PERFORMANCE; SPHERES;

D O I：

10.1016/j.ijmst.2020.05.003

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

The Atkinson equation along with its friction factor is commonly used to estimate pressure requirement in mine ventilation. However, friction factor correlation of flow through broken rock, typically found in blasted stope, gob, rock pit or block caving rock deposits, etc., is currently unavailable. Also, it is impractical to conduct direct measurements of flow resistance in an inaccessible broken rock zone. This paper aims to develop a new friction factor correlation of flow through broken rock that can be used directly in Atkinson equation. The proposed correlation is valid for broken rocks with diameter between 0.04 and 1.2 m and porosity ranging from 0.23 to 0.7. (C) 2020 Published by Elsevier B.V. on behalf of China University of Mining & Technology.

引用

页码：455 / 462

页数：8

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