A Study on the Conditions of Fog Generation and the Change Rule of Fog Zone Length in Air Intake Roadway

Yan Wu, Hongqing Zhu (), Baozhen Zhang, Lintao Hu, Shuwei Wang and Jiuli Liu
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Yan Wu: School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
Hongqing Zhu: School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
Baozhen Zhang: School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
Lintao Hu: School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
Shuwei Wang: School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
Jiuli Liu: School of Emergency Management and Safety Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China

Sustainability, 2024, vol. 16, issue 10, 1-16

Abstract: Fog in mine air intake roadways is a non-negligible disaster that seriously reduces the visibility of the roadway, affects vehicle transportation and the safe passage of personnel, and jeopardizes the safe production of the mine. This paper applies both field testing and numerical simulation to explore fog formation conditions and the effects of inlet air temperature and humidity on the fog zone length within the Wangjialing Mine’s air intake roadway in Shanxi, China. First, based on the consideration of the relationship between the moisture gain of surrounding rock and the temperature with humidity of the air flow, the fog generation and distribution law model of the air intake roadway was established. Based on this model, the critical inlet air temperature and the critical inlet air relative humidity for fogging in the Wangjialing Mine air intake roadway were determined. In addition, we found that the fogging point inside the roadway shifted forward continuously with the increase in inlet air temperature and inlet air relative humidity, and the length of the fog zone expands parabolically in response to these rising conditions.

Keywords: fog generation; mine air intake roadway; air relative humidity; air temperature (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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