Optimization study on air cooler arrangement and cooling parameters of coal mining working face

To solve the problem of unsatisfactory cooling effect of local cooling systems in coal mining faces, this paper constructs a simulation model of the working face, combines theoretical analysis and numerical analysis, and studies the influence law of four factors on the cooling effect in the cooling...

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Published in:Energy (Oxford) 2024-03, Vol.291, p.130175, Article 130175
Main Authors: Miao, Dejun, Zhang, Yiran, Sui, Xiuhua
Format: Article
Language:English
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Characterization of air cooler cooling parameters
Heat damage management
Localized cooling system
Numerical simulation
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description To solve the problem of unsatisfactory cooling effect of local cooling systems in coal mining faces, this paper constructs a simulation model of the working face, combines theoretical analysis and numerical analysis, and studies the influence law of four factors on the cooling effect in the cooling system (the combination of the air cooler Ca, the air distance of the wind cylinder Da, the length of the wind cylinder Ld and the air temperature of the air cooler T0). The results show that when Da = 25 m, Ld = 100 m, T0 = 19 °C C2 air cooler combination method, the average air temperature of the inlet roadway is reduced by 5.1 °C, the average air temperature of the working face is reduced by 3.8 °C, the average temperature of the return roadway is reduced by 2.4 °C, and 97 % of the area of the coal mining face is 
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The results show that when Da = 25 m, Ld = 100 m, T0 = 19 °C C2 air cooler combination method, the average air temperature of the inlet roadway is reduced by 5.1 °C, the average air temperature of the working face is reduced by 3.8 °C, the average temperature of the return roadway is reduced by 2.4 °C, and 97 % of the area of the coal mining face is &lt; 30 °C. Finally, the application was carried out at the site of 10303 working face, and the average temperature was reduced by 3.9 °C, the maximum air temperature dropped to below 26 °C, and the minimum temperature was as low as 24.3 °C. The thermal environment of the coal mining face was effectively improved, and the cooling effect of the cooling system was substantially improved. •Determined the optimal air cooler cooling parameters.•Analyzed the influence law of air cooler parameters on the cooling effect.•The cooling effect of the working face is greatly improved after application.•The temperature and humidity of the working surface are effectively reduced.</description><identifier>ISSN: 0360-5442</identifier><identifier>DOI: 10.1016/j.energy.2023.130175</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Characterization of air cooler cooling parameters ; Heat damage management ; Localized cooling system ; Numerical simulation</subject><ispartof>Energy (Oxford), 2024-03, Vol.291, p.130175, Article 130175</ispartof><rights>2024 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c255t-f73e6ced106dc3ce4f5202d9511005808ac8279d9b31cab813f4e8b2f4171a463</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Miao, Dejun</creatorcontrib><creatorcontrib>Zhang, Yiran</creatorcontrib><creatorcontrib>Sui, Xiuhua</creatorcontrib><title>Optimization study on air cooler arrangement and cooling parameters of coal mining working face</title><title>Energy (Oxford)</title><description>To solve the problem of unsatisfactory cooling effect of local cooling systems in coal mining faces, this paper constructs a simulation model of the working face, combines theoretical analysis and numerical analysis, and studies the influence law of four factors on the cooling effect in the cooling system (the combination of the air cooler Ca, the air distance of the wind cylinder Da, the length of the wind cylinder Ld and the air temperature of the air cooler T0). The results show that when Da = 25 m, Ld = 100 m, T0 = 19 °C C2 air cooler combination method, the average air temperature of the inlet roadway is reduced by 5.1 °C, the average air temperature of the working face is reduced by 3.8 °C, the average temperature of the return roadway is reduced by 2.4 °C, and 97 % of the area of the coal mining face is &lt; 30 °C. Finally, the application was carried out at the site of 10303 working face, and the average temperature was reduced by 3.9 °C, the maximum air temperature dropped to below 26 °C, and the minimum temperature was as low as 24.3 °C. 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The thermal environment of the coal mining face was effectively improved, and the cooling effect of the cooling system was substantially improved. •Determined the optimal air cooler cooling parameters.•Analyzed the influence law of air cooler parameters on the cooling effect.•The cooling effect of the working face is greatly improved after application.•The temperature and humidity of the working surface are effectively reduced.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.energy.2023.130175</doi></addata></record>
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subjects Characterization of air cooler cooling parameters
Heat damage management
Localized cooling system
Numerical simulation
title Optimization study on air cooler arrangement and cooling parameters of coal mining working face
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