Results 21 to 30 of about 5,513,522 (257)
Energies, 2023 In thermally modernised buildings, sharing of ventilation heat loss becomes more significant. In the case of the application of ventilation with heat recovery, especially during transitional periods, there arises a question of whether an air system makes
Piotr Michalak
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Research on intelligent regulation and control system and key technology of mine local ventilation
Gong-kuang zidonghua, 2021 At present, the automatic control method of mine local ventilation adopts manual adjustment of ventilator frequency, and relies on manual collection of air duct parameters, which lacks accurate and reliable monitoring methods to reflect the ventilation ...
CHENG Xiaozhi1 +4 more
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Interexpo GEO-Siberia, 2022 The piston effect of trains on air distribution and air exchange in tunnel and passenger structures of the metro with a single-track tunnel is in second place after the action of mechanical tunnel ventilation. When the tunnel fans are turned off (for example, during the cold season in an area with a sharply continental climate), almost the entire ...
I. V. Lugin +2 more
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Optimization and transformation of ventilation system in Jining No.2 Coal Mine
Gong-kuang zidonghua, 2023 Currently, there's a lack of research on air volume regulation and mine resistance reduction of ventilation system in mine working face. In order to solve the above problem, taking 10303 working face and 33low 02 working face of Jining No.2 Coal Mine as ...
ZHANG Yiran +4 more
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Key Technology of Mine Intelligent Ventilation
Meikuang Anquan, 2020 This paper puts forward the definition of intelligent ventilation system, analyzes the key technology of intelligent ventilation in coal mines, and studies the accurate acquisition algorithm based on the parameters of mine detection and monitoring ...
SHAO Liangshan, YU Baocai , CHEN Xiaoyong
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Gong-kuang zidonghua, 2017 In order to analyze influence of surface air leakage of shallow-buried coal seam on mine ventilation system and goaf flow field, a coupling model of shallow-buried goaf flow field and roadway ventilation network under surface air leakage was established.
WU Fengliang +4 more
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Optimization design of mine regional ventilation system
Gong-kuang zidonghua, 2021 Most of the existing ventilation system optimization designs focus on general mine ventilation systems, and there are few optimization designs for regional mine ventilation systems.
LIU Kunlun1 +3 more
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Pioneers in Mechanical Ventilation: Björn Jonson
, 2022 In this article, we highlight one of the pioneers of mechanical ventilation. Dr Björn Jonson is a physiologist, physician and currently a Professor Emeritus at Lund University in Sweden. He has spent the last sixty years of his life dedicated to research
Daoud, Ehab, Ehab G. Daoud
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Study of Coal Mine Ventilation System Optimization based on Ventsim
MATEC Web of Conferences, 2016 This article is based on the situation of too large coal mine ventilation resistance in the Majiagou coal mine. According to Majiagou coal mine late production plans, it measures resistance comprehensively, analyses the resistance distributions and the ...
Zhang Jing Gang, Suo Cheng Yu
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Feasibility Analysis of Cross Passage Ventilation and Smoke Control in Extra-Long Submarine Tunnel
Fire, 2022 Longitudinal ventilation fans in extra-long submarine tunnels are usually arranged at both ends of the tunnel limited by the tunnel cross section, which is usually hindered by insufficient power caused by extra-long ventilation distances.
Wenjiao You, Jie Kong
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