Evaluation of Downhole Climatic Conditions based on Gagge Two-node Model

CHEN Jin; WU Shiyue; CHAI Lin; NIU Yu; SUO Zaibin

Mining Safety & Environmental Protection > 2019 > 46(3): 104-107,118.

CHEN Jin, WU Shiyue, CHAI Lin, NIU Yu, SUO Zaibin. Evaluation of Downhole Climatic Conditions based on Gagge Two-node Model[J]. Mining Safety & Environmental Protection, 2019, 46(3): 104-107,118.

Citation:

CHEN Jin, WU Shiyue, CHAI Lin, NIU Yu, SUO Zaibin. Evaluation of Downhole Climatic Conditions based on Gagge Two-node Model[J]. Mining Safety & Environmental Protection, 2019, 46(3): 104-107,118.

Citation:

CHEN Jin, WU Shiyue, CHAI Lin, NIU Yu, SUO Zaibin. Evaluation of Downhole Climatic Conditions based on Gagge Two-node Model[J]. Mining Safety & Environmental Protection, 2019, 46(3): 104-107,118.

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Evaluation of Downhole Climatic Conditions based on Gagge Two-node Model

College of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024, China

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Received Date: June 10, 2018
Revised Date: April 09, 2019
Available Online: September 13, 2022

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Abstract

A common model for evaluating downhole climatic conditions based on human thermal comfort is primarily the Fanger single-node model, which has large errors in cold or hot environments. In order to better reflect the mine climate, taking 14309 fully mechanized working face of Dongtan Coal Mine of Yanzhou Coal Mining Group as an example. The simplified Gagge two-node model was solved by MATLAB, the solution curve of skin temperature of human body at different positions of the working face was obtained, and the standard effective temperature (SET) at stable time was taken to reflect the thermal comfort of human body in the mine. The results show that the skin temperature of miners is positively correlated with the metabolic rate, while the comfort level is negatively correlated. The existing research data proves that the Gagge two-node model can be applied to the evaluation of downhole climatic conditions, compared with the Fanger model, the calculation results of this model are more accurate.
- Gagge two-node model,
- evaluation of downhole climate condition,
- skin temperature,
- standard effective temperature (SET)

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