THERMAL SCIENCE

International Scientific Journal

Lian-Jiang Wei

,

Meng-Wei Wang

,

Sheng Li

,

Zong-Kang Wei

LINE WIND SPEED DISTRIBUTION MODEL OF RECTANGULAR TUNNEL CROSS-SECTION

ABSTRACT
Accurate monitoring of the tunnel wind speed plays a key role in achieving intelligent mine ventilation. Based on the difficulty faced in precise reflection of the average tunnel wind speed by point wind speed monitoring, this paper puts forward a method for accurate monitoring the tunnel wind speed by large-span ultrasonic linear wind speed sensor based on the method of the time difference. Besides, as to the core problem of representing the average section wind speed by section-linear wind speed, the distribution rules of section wind speed in rectangular tunnel with various support forms is studied through combing theoretical analysis and experimental verification. The results could be well applied to rapid determination of ventilation parameters in other coal mines, which is better for the ventilation management of mines.
KEYWORDS
ventilation parameters, rectangular tunnel, wind speed, wind speed monitoring
PAPER SUBMITTED: 2018-07-07
PAPER REVISED: 2018-09-12
PAPER ACCEPTED: 2019-03-10
PUBLISHED ONLINE: 2019-05-26
DOI REFERENCE: https://doi.org/10.2298/TSCI180707218W
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 3, PAGES [1513 - 1519]
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Line wind speed distribution model of rectangular tunnel cross-section

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence