渗流作用下的中深层地埋管换热器传热分析

王昌龙; 王鑫; 鲁进利; 王栋; 张朋远; 孙彦红

doi:10.19912/j.0254-0096.tynxb.2021-1243

PDF(1943 KB)

太阳能学报 ›› 2023, Vol. 44 ›› Issue (3) : 304-310. DOI: 10.19912/j.0254-0096.tynxb.2021-1243

渗流作用下的中深层地埋管换热器传热分析

王昌龙, 王鑫, 鲁进利, 王栋, 张朋远, 孙彦红

作者信息 +

ANALYSIS OF HEAT TRANSFER OF DEEP BOREHOLE HEAT EXCHANGER CONSIDERING GROUNDWATER SEEPAGE

Wang Changlong, Wang Xin, Lu Jinli, Wang Dong, Zhang Pengyuan, Sun Yanhong

Author information +

文章历史 +

摘要

考虑地下水渗流的影响,基于移动线热源模型提出一种中深层地埋管换热器半解析模型。基于Fluent软件建立数值模型,并对已知进口流体温度和已知总热输入功率两种边界条件下的数值模型、半解析模型和忽略渗流的半解析模型进行对比。结果发现,两种边界条件下的半解析模型在前期均具有较大误差,而在中后期均与数值模型吻合得较好,其精度高于忽略渗流的半解析模型,尤其是在地下水渗流速度较大的时候。结果表明所提出的半解析模型可用于分析渗流作用下的中深层地埋管传热。

Abstract

Considering the effect of groundwater seepage, a semi-analytical model of deep borehole heat exchanger is proposed based on moving line source model. A numerical model was established based on FLUENT software, and the numerical model, semi-analytical model and semi-analytical model ignoring groundwater seepage were compared under two boundary conditions of known inlet fluid temperature and total heat input rate. The results show that the semi-analytical model with the two boundary conditions has large errors in the early stage, but agrees well with the numerical model in the middle and late stage, and its accuracy is higher than that of the semi-analytical model ignoring groundwater seepage, especially when the groundwater seepage velocity is high. The results show that the proposed semi-analytical model can be used to analyze the heat transfer of deep borehole heat exchanger with groundwater seepage.

导出引用

王昌龙, 王鑫, 鲁进利, 王栋, 张朋远, 孙彦红. 渗流作用下的中深层地埋管换热器传热分析[J]. 太阳能学报. 2023, 44(3): 304-310 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1243

Wang Changlong, Wang Xin, Lu Jinli, Wang Dong, Zhang Pengyuan, Sun Yanhong. ANALYSIS OF HEAT TRANSFER OF DEEP BOREHOLE HEAT EXCHANGER CONSIDERING GROUNDWATER SEEPAGE[J]. Acta Energiae Solaris Sinica. 2023, 44(3): 304-310 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1243

中图分类号： TK521

参考文献

[1] 蔡皖龙, 刘俊, 王沣浩, 等. 深层地埋管换热器换热性能模拟及稳定性研究[J]. 太阳能学报, 2020, 41(2): 158-164.
CAI W L, LIU J, WANG F H, et al.Research on heat transfer performance and stability of deep borehole heat exchanger[J]. Acta energiae solaris sinica, 2020, 41(2): 158-164.
[2] 刘俊, 蔡皖龙, 王沣浩, 等. 深层地源热泵系统实验研究及管井结构优化[J]. 工程热物理学报, 2019, 40(9): 2143-2150.
LIU J, CAI W L, WANG F H, et al.Experimental study and tube structure optimization of deep borehole ground source heat pump[J]. Journal of engineering thermophysics, 2019, 40(9): 2143-2150.
[3] ANETA S S, MARC A R, ANDRZEJ G, et al. Deep borehole heat exchangers—a conceptual and comparative review[J]. International journal of air-conditioning and refrigeration, 2016, 24(1): 1630001.1.
[4] ALIMONTI C, SOLDO E, BOCCHETTI D, et al.The wellbore heat exchangers: a technical review[J]. Renewable energy, 2018, 123: 353-381.
[5] 方亮. 地源热泵系统中深层地埋管换热器的传热分析及其应用[D]. 济南: 山东建筑大学, 2018.
FANG L.Heat transfer analysis and application of deep borehole heat exchanger in ground source heat pump systems[D]. Ji’nan: Shandong Jianzhu University, 2018.
[6] NIAN Y L, CHENG W L.Insights into geothermal utilization of abandoned oil and gas wells[J]. Renewable and sustainable energy reviews, 2018, 87: 44-60.
[7] PAN A Q, LU L, CUI P, et al.A new analytical heat transfer model for deep borehole heat exchangers with coaxial tubes[J]. International journal of heat and mass transfer, 2019, 141: 1056-1065.
[8] LUO Y Q, XU G Z, CHENG N.Proposing stratified segmented finite line source (SS-FLS) method for dynamic simulation of medium-deep coaxial borehole heat exchanger in multiple ground layers[J]. Renewable energy, 2021, 179: 604-624.
[9] BEIER R A, ACUÑA J, MOGENSEN P, et al. Transient heat transfer in a coaxial borehole heat exchanger[J]. Geothermics, 2014, 51: 470-482.
[10] BEIER R A.Thermal response tests on deep borehole heat exchangers with geothermal gradient[J]. Applied thermal engineering, 2020, 178: 115447.
[11] 贾林瑞, 崔萍, 方亮, 等. 中深层套管式埋管换热器逆向传热现象的研究[J]. 山东建筑大学学报, 2020, 35(6): 61-68.
JIA L R, CUI P, FANG L, et al.Research on the reverse heat transfer phenomenon of the coaxial deep borehole heat exchangers[J]. Journal of Shandong Jianzhu University, 2020, 35(6): 61-68.
[12] SONG X Z, WANG G S, SHI Y, et al.Numerical analysis of heat extraction performance of a deep coaxial borehole heat exchanger geothermal system[J]. Energy, 2018, 164: 1298-1310.
[13] CAI W L, WANG F H, LIU J, et al.Experimental and numerical investigation of heat transfer performance and sustainability of deep borehole heat exchangers coupled with ground source heat pump systems[J]. Applied thermal engineering, 2019, 149: 975-986.
[14] BROWN C S, CASSIDY N J, EGAN S S, et al.Numerical modelling of deep coaxial borehole heat exchangers in the Cheshire Basin, UK[J]. Computers and geosciences, 2021, 152: 104752.
[15] LOUS M L, LARROQUE F, DUPUY A, et al.Thermal performance of a deep borehole heat exchanger: insights from a synthetic coupled heat and flow model[J]. Geothermics, 2015, 57: 157-172.
[16] SONG X Z, ZHENG R, LI G S, et al.Heat extraction performance of a downhole coaxial heat exchanger geothermal system by considering fluid flow in the reservoir[J]. Geothermics, 2018, 76: 190-200.
[17] 程金明, 刘阳. 地下水流动对垂直埋管换热器土壤温度场分布的影响[J]. 太阳能学报, 2017, 38(10): 2798-2803.
CHENG J M, LIU Y.Effect of groundwater flow on soil temperature field distribution around vertical buried pipe heat exchanger[J]. Acta energiae solaris sinica, 2017, 38(10): 2798-2803.
[18] 马玖辰, 邵刚, 谢亚成, 等. 抽-灌井水量对耦合式地埋管井群传热性能的影响[J]. 太阳能学报, 2020, 41(3): 109-118.
MA J C, SHAO G, XIE Y C, et al.Influence of quantity of pumping and injection wells on heat transfer characteristic of coupling borehole heat exchangers[J]. Acta energiae solaris sinica, 2020, 41(3): 109-118.
[19] 马玖辰, 王文君, 魏璠, 等. 热力弥散对地埋管换热器所在含水层传热过程的影响[J]. 太阳能学报, 2021, 42(3): 164-170.
MA J C, WANG W J, WEI F, et al.Influence of thermal dispersion on transfer process in aquifers around borehole heat exchangers[J]. Acta energiae solaris sinica, 2021, 42(3): 164-170.
[20] 李旻, 刁乃仁, 方肇洪. 单井回灌地源热泵地下传热数值模型研究[J]. 太阳能学报, 2007, 28(12): 1394-1401.
LI M, DIAO N R, FANG Z H.Study of numerical heat transfer models of standing column well[J]. Acta energiae solaris sinica, 2007, 28(12): 1394-1401.
[21] WANG C L, LU Y H, CHEN L W, et al.A semi-analytical model for heat transfer in coaxial borehole heat exchangers[J]. Geothermics, 2021, 89: 101952.
[22] DIAO N R, LI Q Y, FANG Z H.Heat transfer in ground heat exchangers with groundwater advection[J]. International journal of thermal sciences, 2004, 43(12): 1203-1211.
[23] 孔彦龙, 陈超凡, 邵亥冰, 等. 深井换热技术原理及其换热量评估[J]. 地球物理学报, 2017, 60(12): 4741-4752.
KONG Y L, CHEN C F, SHAO H B, et al.Principle and capacity quantification of deep-borehole heat exchangers[J]. Chinese journal of geophysics, 2017, 60(12): 4741-4752.