Next Article in Journal
An Investigation on the Effect of the Total Efficiency of Water and Air Used Together as a Working Fluid in the Photovoltaic Thermal Systems
Next Article in Special Issue
Computational Fluid Dynamics Simulation of Gas–Solid Hydrodynamics in a Bubbling Fluidized-Bed Reactor: Effects of Air Distributor, Viscous and Drag Models
Previous Article in Journal
Near-Wall Flow Characteristics of a Centrifugal Impeller with Low Specific Speed
Previous Article in Special Issue
A Computational Fluid Dynamics Approach for the Modeling of Gas Separation in Membrane Modules
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Processes
Volume 7
Issue 8
10.3390/pr7080515
processes-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Computational Fluid Dynamic Simulation of Inhaled Radon Dilution by Auxiliary Ventilation in a Stone-Coal Mine Laneway and Dosage Assessment of Miners

by
Bin Zhou
1,2,
Ping Chang
2,* and
Guang Xu
2
1
College of Safety and Emergency Management Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2
Department of Mining Engineering and Metallurgical Engineering, WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Kalgoorlie, WA 6430, Australia
*
Author to whom correspondence should be addressed.
Processes 2019, 7(8), 515; https://doi.org/10.3390/pr7080515
Submission received: 30 April 2019 / Revised: 31 July 2019 / Accepted: 1 August 2019 / Published: 5 August 2019
(This article belongs to the Special Issue CFD Modeling of Complex Chemical Processes: Multiscale and Multiphysics Challenges)
Browse Figures
Versions Notes

Abstract

Inhaled radon status in the laneways of some Chinese stone-coal mines is a cause of concern. In this study, computational fluid dynamics simulations were employed to investigate three flowrates of the dilution gas (2.5, 5, and 7.5 m3/s) and radon distributions at realistic breathing levels (1.6, 1.75, and 1.9 m). The results showed that there are obvious jet-flow, backflow, and vortex zones near the heading face, and a circulation flow at the rear of the laneway. A high radon concentration area was found to be caused by the mining machinery. As the ventilation rate increased, the radon concentrations dropped significantly. An airflow of 7.5 m3/s showed the best dilution performance: The maximum radon concentration decreased to 541.62 Bq/m3, which is within the safe range recommended by the International Commission on Radiological Protection. Annual effective doses for the three air flowrates were 8.61, 5.50, and 4.12 mSv.
Keywords: coal mining; radon concentration; ventilation; computational fluid dynamics; occupational exposure assessment coal mining; radon concentration; ventilation; computational fluid dynamics; occupational exposure assessment

Share and Cite

MDPI and ACS Style

Zhou, B.; Chang, P.; Xu, G. Computational Fluid Dynamic Simulation of Inhaled Radon Dilution by Auxiliary Ventilation in a Stone-Coal Mine Laneway and Dosage Assessment of Miners. Processes 2019, 7, 515. https://doi.org/10.3390/pr7080515

AMA Style

Zhou B, Chang P, Xu G. Computational Fluid Dynamic Simulation of Inhaled Radon Dilution by Auxiliary Ventilation in a Stone-Coal Mine Laneway and Dosage Assessment of Miners. Processes. 2019; 7(8):515. https://doi.org/10.3390/pr7080515

Chicago/Turabian Style

Zhou, Bin, Ping Chang, and Guang Xu. 2019. "Computational Fluid Dynamic Simulation of Inhaled Radon Dilution by Auxiliary Ventilation in a Stone-Coal Mine Laneway and Dosage Assessment of Miners" Processes 7, no. 8: 515. https://doi.org/10.3390/pr7080515

APA Style

Zhou, B., Chang, P., & Xu, G. (2019). Computational Fluid Dynamic Simulation of Inhaled Radon Dilution by Auxiliary Ventilation in a Stone-Coal Mine Laneway and Dosage Assessment of Miners. Processes, 7(8), 515. https://doi.org/10.3390/pr7080515

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop