埋管内流体采热状态下充填体释热性能的数值模拟（英文）
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摘要
在矿山充填体内布置采热埋管,是矿床-地热协同开采技术的基本要求,而充填体的释热性能直接影响地热的采出效率。本文基于换热基本理论,利用FLUENT模拟软件建立充填体释热过程的三维非稳态换热模型,并以水平U型采热埋管为研究对象,分析充填体释热过程中采热埋管周围充填体温度场的变化规律,探讨充填体初始温度、采热埋管管径、管内采热流体的入口流速、入口温度对其轴向一定距离内采热流体与周围充填体两区域之间耦合传热,以及对采热流体进出口温差、充填体释热性能的影响,不仅为实现深部矿山矿产资源与地热协同开采奠定理论基础,而且也为充填体内采热埋管的布置、采热流体的工况选择提供参考依据。
It is the basic requirement of the synergetic exploitation of deep mineral resources and geothermal resources to arrange the heat transfer tube in filling body.The heat release performance of filling body directly impacts on the exploiting efficiency of geothermal energy.Based on heat transfer theory,a three-dimensional unsteady heat transfer model of filling body is established by using FLUENT simulation software.Taking the horizontal U-shaped buried pipe as research object,the variation of temperature field in filling body around buried pipe is analyzed during the heat release process of filling body;the initial temperature of filling body,the diameter of buried pipe,the inlet temperature and inlet velocity of heat transfer fluid influencing of coupling heat transfer,which exists between heat transfer fluid and surrounding filling body within a certain axial distance of buried tube,and influencing of temperature difference between inlet and outlet of heat transfer fluid and on heat transfer performance of filling body are also discussed.It not only lays a theoretical foundation for the synergetic exploitation of mineral resources and geothermal energy in deep mines,but also provides a reference basis for the arrangement of buried pipes in filling body as well as the selection of working conditions for heat transfer fluid.
It is the basic requirement of the synergetic exploitation of deep mineral resources and geothermal resources to arrange the heat transfer tube in filling body.The heat release performance of filling body directly impacts on the exploiting efficiency of geothermal energy.Based on heat transfer theory,a three-dimensional unsteady heat transfer model of filling body is established by using FLUENT simulation software.Taking the horizontal U-shaped buried pipe as research object,the variation of temperature field in filling body around buried pipe is analyzed during the heat release process of filling body;the initial temperature of filling body,the diameter of buried pipe,the inlet temperature and inlet velocity of heat transfer fluid influencing of coupling heat transfer,which exists between heat transfer fluid and surrounding filling body within a certain axial distance of buried tube,and influencing of temperature difference between inlet and outlet of heat transfer fluid and on heat transfer performance of filling body are also discussed.It not only lays a theoretical foundation for the synergetic exploitation of mineral resources and geothermal energy in deep mines,but also provides a reference basis for the arrangement of buried pipes in filling body as well as the selection of working conditions for heat transfer fluid.
引文
[1] QI Chong-chong, LIU Lang, HE Jian-yong, CHEN Qiu-song,YU Li-Juan, LIU Peng-fei. Understanding cement hydration of cemented paste backfill:DFT study of water adsorption on tricalcium silicate(111)surface[J]. Minerals, 2019, 9(4):202. DOI:https://doi.org/10.3390/min9040202.
[2] ENG Kang, LIU Zhao-peng, ZOU Quan-le, ZHANG Zhen-yu, ZHOU Jia-qi. Static and dynamic mechanical properties of granite from various burial depths[J]. Rock Mechanics and Rock Engineering, 2019. DOI:10.1007/s00603-019-01810-y.
[3] QI Chong-chong, FOURIE Andy, CHEN Qiu-song, LIU Peng-fei. Application of first-principles theory in ferrite phases of cemented paste backfill[J]. Minerals Engineering,2019, 133:47-51. DOI:10.1016/j.mineng.2019.01.011.
[4] QIN Li-guo, FENG Xin-an, HAFEZI M, ZHANG Ya-li,GUO Jun-de, DONG Guang-neng, QIN Yuan-bin.Investigating the tribological and biological performance of covalently grafted chitosan coatings on Co–Cr–Mo alloy[J].Tribology International, 2019, 127:302-312. DOI:10.1016/j.triboint.2018.06.018.
[5] MENéNDEZ J, ORDó?EZ A,áLVAREZ R, LOREDO J.Energy from closed mines:Underground energy storage and geothermal applications[J]. Renewable and Sustainable Energy Reviews, 2019, 108:498-512. DOI:10.1016/j.rser.2019.04.007.
[6] GUO Ping-ye, HE Man-chao, ZHENG Lian-ge, ZHANG Na.A geothermal recycling system for cooling and heating in deep mines[J]. Applied Thermal Engineering, 2017, 116:833-839. DOI:10.1016/j.applthermaleng.2017.01.116.
[7] NIU Yong-sheng. Research on thermal energy recycling utilization in high temperature mines[J]. Procedia Engineering, 2015, 121:389-395. DOI:10.1016/j.proeng.2015.08.1083.
[8] LU Hong-jian, QI Chong-chong, CHEN Qiu-song, GAN De-qing, XUE Zhen-lin, HU Ya-jun. A new procedure for recycling waste tailings as cemented paste backfill to underground stopes and open pits[J]. Journal of Cleaner Production, 2018, 188:601-612. DOI:10.1016/j.jclepro.2018.04.041.
[9] DONG Long-jun, TONG Xiao-jie, LI Xi-bing, ZHOU Jian,WANG Shao-feng, LIU Bing. Some developments and new insights of environmental problems and deep mining strategy for cleaner production in mines[J]. Journal of Cleaner Production, 2019, 210:1562-1578. DOI:10.1016/j.jclepro.2018.10.291.
[10] BAO Ting, MELDRUM J, GREEN C, VITTON S, LIU Zhen, BIRD K. Geothermal energy recovery from deep flooded copper mines for heating[J]. Energy Conversion and Management, 2019, 183:604-616. DOI:10.1016/j.enconman.2019.01.007.
[11] CHEN Fei, MAO Jin-feng, CHEN Shang-yuan, LI Chao-feng, HOU Pu-min, LIAO Lu. Efficiency analysis of utilizing phase change materials as grout for a vertical U-tube heat exchanger coupled ground source heat pump system[J]. Applied Thermal Engineering, 2018, 130:698-709. DOI:10.1016/j.applthermaleng.2017.11.062.
[12] CHEN Liu, LIU Lang, ZHANG Bo, ZHANG Xiao-yan,WANG Mei. Mechanism of backfill thermal utilization adsorption cooling system in deep mine[J]. Journal of China Coal Society, 2018, 43(2):483-489. DOI:10.13225/j.cnki.jccs.2017.165.(in Chinese)
[13] ZHANG Xiao-yan, JIA Yu-hang, WANG Mei, LIU Lang.Experimental research on heat transfer and strength analysis of backfill with ice grains in deep mines[J]. Sustainability2019, 11(9):2486. DOI:10.3390/su11092486.
[14] WANG Mei, LIU Lang, CHEN Liu, ZHANG Xiao-yan,ZHANG Bo, JI Chang-fa. Cold load and storage(CLS)functional backfill for cooling deep mine[J]. Advances in Civil Engineering, 2018. DOI:10.1155/2018/5435214.
[15] ZHANG Ya-ping, WANG Mei, HAO Gai-hong.Thermomechanical analysis of system used to cooling and dehumidity in mine[J]. Journal of China Coal Society, 2016,35(10):146-148. DOI:10.13301/j.cnki.ct.2016.10.057.(in Chinese)
[16] HUAN Chao, WANG Feng-hao, LI Sheng-teng, ZHAO Yu-jiao, LIU Lang, WANG Zhi-hua, JI Chang-fa. A performance comparison of serial and parallel solar-assisted heat pump heating systems in Xi’an, China[J]. Energy Science&Engineering, 2019:1-15. DOI:10.1002/ese3.357.
[17] GHOREISHI-MADISEH S A, HASSANI F, ABBASY F.Numerical and experimental study of geothermal heat extraction from backfilled mine stopes[J]. Applied Thermal Engineering, 2015, 90:1119-1130. DOI:10.1016/j.Applthermaleng. 2014.11.023.
[18] LAMARCHE L. Horizontal ground heat exchangers modelling[J]. Applied Thermal Engineering, 2019, 55:534-545. DOI:10.1016/j.Applthermaleng.2019.04.006.
[19] KERME E D, FUND A S. Heat transfer simulation analysis and performance study of single U-tube borehole heat exchanger[J]. Renewable Energy, 2020, 145:1430-1448.DOI:10.1016/j.renene.2019.06.004.
[20] KONG Xiang-ri, DENG Ye-lin, LI Lin-yan, GONG Wei-shen, CAO Shi-jie. Experimental and numerical study on the thermal performance of ground source heat pump with a set of designed buried pipes[J]. Applied Thermal Engineering, 2017, 114:110-117. DOI:10.1016/j.applthermaleng.2016.11.176.
[21] KAYACI N, DEMIR H. Numerical modelling of transient soil temperature distribution for horizontal ground heat exchanger of ground source heat pump[J]. Geothermics,2017, 73:33-47. DOI:10.1016/j.geothermics.2018.01.009.
[22] AL-AMEEN Y, LIANAKIEV A, EVANS R. Recycling construction and industrial landfill waste material for backfill in horizontal ground heat exchanger systems[J]. Energy,2018, 151:556-568. DOI:10.1016/j.energy.2018.03.095.
[23] JI Guang-hui HUANG Guang-qin. Impact of load distribution on ground heat exchanger under thermal equilibrium between heat extraction and heat release[J].Building Science, 2017, 33(10):104-112. DOI:10.13614/j.cnki.11-1962/tu.2017.10.16.(in Chinese)
[24] YANG Wei-bo, KONG Lei, YIN Yan-shan. Numerical simulation and experimental validation on heat exchange characteristics of horizontal slinky soil ground heat exchanger[J]. Fluid Machinery, 2018, 46(6):60-67. DOI:10.3969/j.issn.1005-0329.2018.06.013.(in Chinese)
[25] CHEN Jin-hua, XIA Lei, LI Bai-zhan, MMEREKI D.Simulation and experimental analysis of optimal buried depth of the vertical U-tube ground heat exchanger for a ground-coupled heat pump system[J]. Renewable Energy,2015, 73:46-54. DOI:10.1016/j.renene.2014.06.007.
[26] ZHOU Tong. Experimental study on heat transfer performance of buried pipe heat exchanger with twisted tape inserts in the backfill materials of sand/graphite[D]. Beijing:Beijing Jiaotong University, 2018.(in Chinese)
[27] LI Chao, GUAN Yan-ling, YANG Rui-tao, LU Xiong,XIONG Wen-xue, LONG An-jie. Effect of inner pipe type on the heat transfer performance of deep-buried coaxial double-pipe heat exchangers[J]. Renewable Energy, 2020,145:1049-1060. DOI:10.1016/j.renene.2019.06.101.
[28] LV Yi-qing, FU Yun-zhun, CAI Yin-ling. Numerical simulation and experimental study of heat release performance of multi-port u-type buried pipes[J]. Acta Energiae Solaris Sinica, 2016, 37(12):3110-3116.(in Chinese)
[29] LIU Lang, ZHU Chao, QI Chong-chong, ZHANG Bo,SONG Ki-il. A microstructural hydration model for cemented paste backfill considering internal sulfate attacks[J]. Construction and Building Materials, 2019, 211:99-108.DOI:10.1016/j.conbuildmat.2019.03.222.
[30] LIU Lang, YANG Pan, QI Chong-chong, ZHANG Bo, GUO Li-jie, SONG Ki-il. An experimental study on the early-age hydration kinetics of cemented paste backfill[J].Construction and Building Materials, 2019, 212:283-294.DOI:10.1016/j.conbuildmat.2019.03.322.
[31] GUO Li-jie, YU Bin. Status and future of filling technology and equipment in metal mines in China[J]. Mining Technology, 2011, 1(3):12-14, 37. DOI:10.3969/j.issn.1671-2900.2011.03.004.
[32] WANG Li-hong, BAO Ai-hua, LUO Yuan-yuan.Development and outlook on the filling method in China[J].Mining Research and Development, 2017, 37(3):1-7. DOI:10.13827/J.cnki.kyyk.2017.03.001.(in Chinese)
[33] GUAN Yan-ling, ZHAO Xiao-li, WANG Guan-jun, DAI Jun,ZHANG Hao. 3D dynamic numerical programming and calculation of vertical buried tube heat exchanger performance of ground-source heat pumps under coupled heat transfer inside and outside of tube[J]. Energy and Buildings, 2017, 139:186-196. DOI:10.1016/j.enbuild.2017.01.023.
[2] ENG Kang, LIU Zhao-peng, ZOU Quan-le, ZHANG Zhen-yu, ZHOU Jia-qi. Static and dynamic mechanical properties of granite from various burial depths[J]. Rock Mechanics and Rock Engineering, 2019. DOI:10.1007/s00603-019-01810-y.
[3] QI Chong-chong, FOURIE Andy, CHEN Qiu-song, LIU Peng-fei. Application of first-principles theory in ferrite phases of cemented paste backfill[J]. Minerals Engineering,2019, 133:47-51. DOI:10.1016/j.mineng.2019.01.011.
[4] QIN Li-guo, FENG Xin-an, HAFEZI M, ZHANG Ya-li,GUO Jun-de, DONG Guang-neng, QIN Yuan-bin.Investigating the tribological and biological performance of covalently grafted chitosan coatings on Co–Cr–Mo alloy[J].Tribology International, 2019, 127:302-312. DOI:10.1016/j.triboint.2018.06.018.
[5] MENéNDEZ J, ORDó?EZ A,áLVAREZ R, LOREDO J.Energy from closed mines:Underground energy storage and geothermal applications[J]. Renewable and Sustainable Energy Reviews, 2019, 108:498-512. DOI:10.1016/j.rser.2019.04.007.
[6] GUO Ping-ye, HE Man-chao, ZHENG Lian-ge, ZHANG Na.A geothermal recycling system for cooling and heating in deep mines[J]. Applied Thermal Engineering, 2017, 116:833-839. DOI:10.1016/j.applthermaleng.2017.01.116.
[7] NIU Yong-sheng. Research on thermal energy recycling utilization in high temperature mines[J]. Procedia Engineering, 2015, 121:389-395. DOI:10.1016/j.proeng.2015.08.1083.
[8] LU Hong-jian, QI Chong-chong, CHEN Qiu-song, GAN De-qing, XUE Zhen-lin, HU Ya-jun. A new procedure for recycling waste tailings as cemented paste backfill to underground stopes and open pits[J]. Journal of Cleaner Production, 2018, 188:601-612. DOI:10.1016/j.jclepro.2018.04.041.
[9] DONG Long-jun, TONG Xiao-jie, LI Xi-bing, ZHOU Jian,WANG Shao-feng, LIU Bing. Some developments and new insights of environmental problems and deep mining strategy for cleaner production in mines[J]. Journal of Cleaner Production, 2019, 210:1562-1578. DOI:10.1016/j.jclepro.2018.10.291.
[10] BAO Ting, MELDRUM J, GREEN C, VITTON S, LIU Zhen, BIRD K. Geothermal energy recovery from deep flooded copper mines for heating[J]. Energy Conversion and Management, 2019, 183:604-616. DOI:10.1016/j.enconman.2019.01.007.
[11] CHEN Fei, MAO Jin-feng, CHEN Shang-yuan, LI Chao-feng, HOU Pu-min, LIAO Lu. Efficiency analysis of utilizing phase change materials as grout for a vertical U-tube heat exchanger coupled ground source heat pump system[J]. Applied Thermal Engineering, 2018, 130:698-709. DOI:10.1016/j.applthermaleng.2017.11.062.
[12] CHEN Liu, LIU Lang, ZHANG Bo, ZHANG Xiao-yan,WANG Mei. Mechanism of backfill thermal utilization adsorption cooling system in deep mine[J]. Journal of China Coal Society, 2018, 43(2):483-489. DOI:10.13225/j.cnki.jccs.2017.165.(in Chinese)
[13] ZHANG Xiao-yan, JIA Yu-hang, WANG Mei, LIU Lang.Experimental research on heat transfer and strength analysis of backfill with ice grains in deep mines[J]. Sustainability2019, 11(9):2486. DOI:10.3390/su11092486.
[14] WANG Mei, LIU Lang, CHEN Liu, ZHANG Xiao-yan,ZHANG Bo, JI Chang-fa. Cold load and storage(CLS)functional backfill for cooling deep mine[J]. Advances in Civil Engineering, 2018. DOI:10.1155/2018/5435214.
[15] ZHANG Ya-ping, WANG Mei, HAO Gai-hong.Thermomechanical analysis of system used to cooling and dehumidity in mine[J]. Journal of China Coal Society, 2016,35(10):146-148. DOI:10.13301/j.cnki.ct.2016.10.057.(in Chinese)
[16] HUAN Chao, WANG Feng-hao, LI Sheng-teng, ZHAO Yu-jiao, LIU Lang, WANG Zhi-hua, JI Chang-fa. A performance comparison of serial and parallel solar-assisted heat pump heating systems in Xi’an, China[J]. Energy Science&Engineering, 2019:1-15. DOI:10.1002/ese3.357.
[17] GHOREISHI-MADISEH S A, HASSANI F, ABBASY F.Numerical and experimental study of geothermal heat extraction from backfilled mine stopes[J]. Applied Thermal Engineering, 2015, 90:1119-1130. DOI:10.1016/j.Applthermaleng. 2014.11.023.
[18] LAMARCHE L. Horizontal ground heat exchangers modelling[J]. Applied Thermal Engineering, 2019, 55:534-545. DOI:10.1016/j.Applthermaleng.2019.04.006.
[19] KERME E D, FUND A S. Heat transfer simulation analysis and performance study of single U-tube borehole heat exchanger[J]. Renewable Energy, 2020, 145:1430-1448.DOI:10.1016/j.renene.2019.06.004.
[20] KONG Xiang-ri, DENG Ye-lin, LI Lin-yan, GONG Wei-shen, CAO Shi-jie. Experimental and numerical study on the thermal performance of ground source heat pump with a set of designed buried pipes[J]. Applied Thermal Engineering, 2017, 114:110-117. DOI:10.1016/j.applthermaleng.2016.11.176.
[21] KAYACI N, DEMIR H. Numerical modelling of transient soil temperature distribution for horizontal ground heat exchanger of ground source heat pump[J]. Geothermics,2017, 73:33-47. DOI:10.1016/j.geothermics.2018.01.009.
[22] AL-AMEEN Y, LIANAKIEV A, EVANS R. Recycling construction and industrial landfill waste material for backfill in horizontal ground heat exchanger systems[J]. Energy,2018, 151:556-568. DOI:10.1016/j.energy.2018.03.095.
[23] JI Guang-hui HUANG Guang-qin. Impact of load distribution on ground heat exchanger under thermal equilibrium between heat extraction and heat release[J].Building Science, 2017, 33(10):104-112. DOI:10.13614/j.cnki.11-1962/tu.2017.10.16.(in Chinese)
[24] YANG Wei-bo, KONG Lei, YIN Yan-shan. Numerical simulation and experimental validation on heat exchange characteristics of horizontal slinky soil ground heat exchanger[J]. Fluid Machinery, 2018, 46(6):60-67. DOI:10.3969/j.issn.1005-0329.2018.06.013.(in Chinese)
[25] CHEN Jin-hua, XIA Lei, LI Bai-zhan, MMEREKI D.Simulation and experimental analysis of optimal buried depth of the vertical U-tube ground heat exchanger for a ground-coupled heat pump system[J]. Renewable Energy,2015, 73:46-54. DOI:10.1016/j.renene.2014.06.007.
[26] ZHOU Tong. Experimental study on heat transfer performance of buried pipe heat exchanger with twisted tape inserts in the backfill materials of sand/graphite[D]. Beijing:Beijing Jiaotong University, 2018.(in Chinese)
[27] LI Chao, GUAN Yan-ling, YANG Rui-tao, LU Xiong,XIONG Wen-xue, LONG An-jie. Effect of inner pipe type on the heat transfer performance of deep-buried coaxial double-pipe heat exchangers[J]. Renewable Energy, 2020,145:1049-1060. DOI:10.1016/j.renene.2019.06.101.
[28] LV Yi-qing, FU Yun-zhun, CAI Yin-ling. Numerical simulation and experimental study of heat release performance of multi-port u-type buried pipes[J]. Acta Energiae Solaris Sinica, 2016, 37(12):3110-3116.(in Chinese)
[29] LIU Lang, ZHU Chao, QI Chong-chong, ZHANG Bo,SONG Ki-il. A microstructural hydration model for cemented paste backfill considering internal sulfate attacks[J]. Construction and Building Materials, 2019, 211:99-108.DOI:10.1016/j.conbuildmat.2019.03.222.
[30] LIU Lang, YANG Pan, QI Chong-chong, ZHANG Bo, GUO Li-jie, SONG Ki-il. An experimental study on the early-age hydration kinetics of cemented paste backfill[J].Construction and Building Materials, 2019, 212:283-294.DOI:10.1016/j.conbuildmat.2019.03.322.
[31] GUO Li-jie, YU Bin. Status and future of filling technology and equipment in metal mines in China[J]. Mining Technology, 2011, 1(3):12-14, 37. DOI:10.3969/j.issn.1671-2900.2011.03.004.
[32] WANG Li-hong, BAO Ai-hua, LUO Yuan-yuan.Development and outlook on the filling method in China[J].Mining Research and Development, 2017, 37(3):1-7. DOI:10.13827/J.cnki.kyyk.2017.03.001.(in Chinese)
[33] GUAN Yan-ling, ZHAO Xiao-li, WANG Guan-jun, DAI Jun,ZHANG Hao. 3D dynamic numerical programming and calculation of vertical buried tube heat exchanger performance of ground-source heat pumps under coupled heat transfer inside and outside of tube[J]. Energy and Buildings, 2017, 139:186-196. DOI:10.1016/j.enbuild.2017.01.023.
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