發(fā)布時間：2018-03-25 10:48

  本文選題：圍巖　切入點：風(fēng)流　出處：《礦業(yè)研究與開發(fā)》2017年11期

【摘要】：基于相似理論搭建礦井通風(fēng)降溫模擬實驗臺,利用控制變量法進(jìn)行實驗,測得不同條件下圍巖與風(fēng)流間的對流換熱系數(shù),以圍巖與風(fēng)流對流換熱系數(shù)作為主序列,以圍巖溫度、風(fēng)流溫度、風(fēng)流速度作為子序列,利用灰色關(guān)聯(lián)度分析方法得到不同影響因素與對流換熱系數(shù)的關(guān)聯(lián)程度。研究結(jié)果表明,在所選取的圍巖溫度、風(fēng)流溫度、風(fēng)流速度3個子序列中,風(fēng)流速度與圍巖對流換熱系數(shù)的關(guān)聯(lián)度最大,其次是風(fēng)流溫度,圍巖溫度對其影響最小。在礦井通風(fēng)降溫系統(tǒng)的設(shè)計中應(yīng)盡可能地增加風(fēng)流速度。
[Abstract]:Based on the similarity theory, the simulation test bench of mine ventilation cooling is built, and the convection heat transfer coefficient between surrounding rock and wind flow is measured under different conditions by using the control variable method. The convection heat transfer coefficient of surrounding rock and air flow is taken as the main sequence, and the surrounding rock temperature is taken as the main sequence. The correlation degree of different factors and convection heat transfer coefficient is obtained by using grey correlation degree analysis method. The results show that the selected surrounding rock temperature, air flow temperature, Among the three sub-sequences of air flow velocity, the correlation degree between air flow velocity and convection heat transfer coefficient of surrounding rock is the largest, followed by air flow temperature, and the influence of surrounding rock temperature on it is the least. In the design of mine ventilation and cooling system, the air flow velocity should be increased as much as possible.
【作者單位】： 西安科技大學(xué)能源學(xué)院;
【基金】：國家自然科學(xué)基金項目(51404191)
【分類號】：TD727.2

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1 董海燕;礦井對流換熱系數(shù)計算及其影響因素分析[J];煤炭工程師;1987年02期

2 高建良;何權(quán)富;張學(xué)博;;礦井巷道對流換熱系數(shù)的現(xiàn)場測定[J];中國安全科學(xué)學(xué)報;2010年02期

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本文編號：1662792