Simulation Study on Heat Transfer of Heading Face

JI Jianhu

Safety in Coal Mines > 2015 > 46(3): 229-233.

JI Jianhu. Simulation Study on Heat Transfer of Heading Face[J]. Safety in Coal Mines, 2015, 46(3): 229-233.

Citation:

JI Jianhu. Simulation Study on Heat Transfer of Heading Face[J]. Safety in Coal Mines, 2015, 46(3): 229-233.

Citation:

JI Jianhu. Simulation Study on Heat Transfer of Heading Face[J]. Safety in Coal Mines, 2015, 46(3): 229-233.

Simulation Study on Heat Transfer of Heading Face

JI Jianhu

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Published Date: March 19, 2015

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According to the ventilation and heat transfer characteristics of heading face, based on the influence factors correlation for heat transfer coefficient of impinging jet in heading face.The ANSYS software is used to simulate 840 combinations for the specific roadway (the roadway for ventilation and fire prevention test of China Coal Technology and Engineering Group Chongqing Research Institute,D has been determined),the combinations includes different Reynolds number Re,air duct diameter d,the distance H between the air duct outlet and head-on,the surrounding rock under the constant temperature condition.The specific form is obtained that the influence factors correlations for heat transfer coefficient of impinging jet in heading face,the correlation coefficients R² is 0.937, which can provide the theoretical basis for calculating the heat dissipating capacity of the surrounding rock in mine cooling.
- mine heat harm,
- heading face,
- heat transfer coefficient,
- numerical simulation,
- regression analysis

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