Inverse Arithmetic And Its Application Of The Heat Exchange Quantity Between Road Wall Rock And Wind Flow

This paper firstly analyzed the present state and its hurt of the high temperature mine. The high-temperature environment in mine well is seriously threatening the safety in mine production and miner's physical and mental health, and had already become the one of six major natural calamity of restricting mine development. According to the problems existing in the lowering the temperature theory in mine well, the research project of the based on the inverse arithmetic of the quantity of heat exchange between wall rock and wind flow was proposed and studied, And the author's original idea and methods was given out, at same time, the study results were applied in the practice sample, and the prospective results were attained.This paper analyzed the heat transfer mechanism and the rule about the heat exchange between wall rock and wind flow in high-temperature mine. Based on the method of Sherbani, this paper set up the mathematics model of the heat conduction direct issue, and educed the dimensionless solution expressions of the heat flux in wall rock, provided the computing method of the heat conduction direct question. This paper firstly adopted the three rank imminent ways, educed the approximately calculating expression of the control heat circle of wall rock in roadway.According to the normal definition of the inverse issue, this article provides the concept and the principle about the inverse heat conduction of the wall rock in roadway, analyses the improperly posed problems of the solution, comes out the solution definition of the inverse heat conduction in wall rock, and set forth the influence of the coefficient sensitivity in the inverse heat conduction of wall rock.This thesis firstly applied the normal principle of the inverse heat conduction to the heat transfer of the wall rock, and according to the heat transfer mechanism of wall rock and the condition of the heat exchange between the wall rock and the wind flow, educed the accurate solution and the approximate solution of the inverse arithmetic about the heat transfer of wall rock..In order to calculate the quantity of heat exchange about wall rock and wind flow and to examine the exactness in practical application of the theory too, this paper surveyed the heatstate of the TianChen mine in the using course, measured the geothermal gradient, primitive rock temperatures of some laneway, heat physical property parameter values, etc. Based on the temperature measurement of wall rock,This paper calculated the heat flux of the 528-orbit roadway. The research of this thesis offered one new research and practical approach for the calculation of the quantity of heat in mine well lowering temperature.