基于Gagge二节点模型的井下气候条件评价
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摘要
基于人体的热舒适性评价井下气候条件的常用模型主要是Fanger单节点模型,该模型在偏冷或偏热的环境中有较大的误差。为更好地反映矿井气候,以兖州煤业集团东滩煤矿14309综放工作面为例,运用MATLAB求解简化后的Gagge二节点模型,得到工作面不同位置处人体皮肤温度的求解曲线,取稳定时的数值计算标准有效温度(SET),通过SET值反映矿井内人体的热舒适度。结果表明,矿工的皮肤温度与新陈代谢率呈正相关关系,而舒适程度则与之相反。采用已有的研究数据验证了Gagge二节点模型可以应用到井下气候条件评价中,相比于Fanger模型,该模型计算结果更精确。
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,taking14309 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.
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,taking14309 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.
引文
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[2] DE FREITAS C R,GRIGORIEVA E A. A comprehensive catalogue and classification of human thermal climate indices[J]. International Journal of Biometeorology,2015,59(1):109-120.
[3] ROGHANCHI P,KOCSIS K C. Challenges in selecting an appropriate Heat stress index to protect workers in hot and humid underground mines[J]. Safety and Health at Work,2018,9(1):10-16.
[4]张水,曹庆贵,俞凯.基于未确知测度理论的矿井通风安全评价[J].矿业安全与环保,2016,43(5):32-35.
[5]姚韦靖,庞建勇.我国深部矿井热环境研究现状与进展[J].矿业安全与环保,2018,45(1):107-111.
[6]童力,胡松涛.低气压环境下Gagge两节点模型的探究[J].建筑科学,2015,31(2):34-39.
[7]杨德源,杨天鸿.矿井热环境及其控制[M].北京:冶金工业出版社,2009:5-7.
[8]张彦龙.某型民用支线飞机座舱热舒适分析[D].南京:南京航空航天大学,2014:28-30.
[9]王志权.适用于井下矿工热舒适性的评价方法[J].煤矿安全,2012,43(8):33-36.
[10]吴小舟.基于人体工效的低温供暖与新风复合系统设计理论及应用研究[D].哈尔滨:哈尔滨工业大学,2013:17-19.
[11] CHOWDHURY A A,RASUL M G,KHAN M M K.Thermal-comfort analysis and simulation for variouslowenergy cooling-technologies applied to an officebuilding in a subtropical climate[J]. Applied Energy,2008,85(6):449-462.
[12]王树刚,徐哲,张腾飞,等.矿井热环境人体热舒适性研究[J].煤炭学报,2010,35(1):97-100.
[13]黄炜,刘晓昂,张红英,等.基于热舒适方程的矿井热舒适性研究[J].矿业安全与环保,2012,39(6):15-17.
[14]宋倩春.基于分析的蒸发冷却空调热舒适研究[D].哈尔滨:哈尔滨工业大学,2015:15-16.
[15]王希然,李夕兵,董陇军.矿井高温高湿职业危害及其临界预防点确定[J].中国安全科学学报,2012,22(2):157-163.
[16] TANABE S,KIMURA K. Effect of air temperature,humidity,and air movement on thermal comfort under hot and humid condition[J]. ASHRAE Transactions,1994,100(2):953-969.
[17]嵇赟喆.空气流速对人体热舒适影响的研究[D].天津:天津大学,2002:67-69.
[18]田元媛.热湿环境下人体热反应的研究[D].北京:清华大学,2001:78-80.
[19]王海英,王美楠,胡松涛,等.低气压环境下人体新陈代谢变化规律的实验研究[J].青岛理工大学学报,2014,35(5):88-91.
[20]徐哲.深部煤炭资源开采的工作面微气候研究[D].大连:大连理工大学,2009:39-41.