TY  - JOUR
PY  - 2022//
TI  - Research on change characteristics of environment in micro space of mine ventilation suits
JO  - China safety science journal (CSSJ)
A1  - You, B.
A1  - Mao, C.
A1  - Shi, S.
A1  - Liu, H.
A1  - Lu, Y.
A1  - Li, M.
SP  - 185
EP  - 193
VL  - 32
IS  - 5
N2  - In order to reveal the heat transfer characteristics of mine ventilation suits in microspace, explore the local cooling effect of ventilation clothing on the human body, the heat source of ventilation clothing microspace was studied, and the local cooling mechanism of the ventilation clothing was analyzed through comparing numerical simulations with real person training test. The influences of ambient temperature, air intake pipe ventilation rate and intake pipe structure on human skin temperature and microspace climate environment were analyzed. The research results show that the working environment temperature has a significant impact on the human skin temperature and the microspace environment temperature, while the air intake duct ventilation is not sensitive to the human skin temperature and the microspace environment temperature, but it has a great influence on the wind speed of the microspace internal environment.When the inlet air volume increases by 5 m3 / h, the skin temperature and microspace environment temperature only decrease by 0. 1-0. 2 ℃. With the increase of inlet air volume, the wind speed in the clothing microspace increase, the human skin blowing feeling strengthens, and the thermal comfort increases. It is found that the cooling effect is the best when the ventilation rate is 10 m3/h. © PHYSOR 2022 China Safety Science Journal. All rights reserved.<p /> <p>Language: zh</p>
LA  - zh
SN  - 1003-3033
UR  - http://dx.doi.org/10.16265/j.cnki.issn1003-3033.2022.05.0819
ID  - ref1
ER  -