Journal of Northeastern University Natural Science ›› 2014, Vol. 35 ›› Issue (11): 1636-1640.DOI: 10.12068/j.issn.1005-3026.2014.11.026

• Mechanical Engineering • Previous Articles     Next Articles

Distribution and Coupling Mechanism of Temperature and Relative Humidity in Underground Mine Refuge Chamber

ZHAN Zina1, JIN Longzhe1,2, WANG Yi1, WANG Sheng1   

  1. 1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; 2. Mine Emergency Technology Research Center, Beijing 100083, China.
  • Received:2013-10-23 Revised:2013-10-23 Online:2014-11-15 Published:2014-07-03
  • Contact: JIN Longzhe
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Abstract: To improve living comfort quality in refuge chamber, based on manned test in small confined space, coupling effect of temperature and relative humidity (RH) on body thermal comfort was quantitatively analyzed, which verifies the necessity to configure the apparatus in refuge chamber. The main disturbance sources affecting on temperature and RH were analyzed, and the key parameters were calculated. Using CFD technology, threedimensional model of refuge chamber with oxygen bottle supply was constructed. Without air conditioning, the internal temperature and RH are up to 33℃, 90% within 9h, where the human being has felt muggy. In this respect, cooling and dehumidifying apparatus can effectively control temperature and RH at 30℃, 83% or less. Finally, the feasibility of the simulation process is verified, and it is deemed that RH can be controlled at 80% or less when the temperature reaches to 28℃. This provides basis guidance for the design of underground mine refuge chamber in future.

Key words: confined space, refuge chamber, human thermal comfort, temperature and relative humidity distribution, numerical simulation

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