Article(id=1152342295450890752, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1152342291831681269, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1708444800000, receivedDateStr=2024-02-21, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1752669412720, onlineDateStr=2025-07-16, pubDate=1747670400000, pubDateStr=2025-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752669412720, onlineIssueDateStr=2025-07-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752669412720, creator=13701087609, updateTime=1752669412720, updator=13701087609, issue=Issue{id=1152342291831681269, tenantId=1146029695717560320, journalId=1146119893612605453, year='2025', volume='43', issue='5', pageStart='569', pageEnd='710', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1752669411857, creator=13701087609, updateTime=1753694458107, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1156641647501894486, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1152342291831681269, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1156641647501894487, tenantId=1146029695717560320, journalId=1146119893612605453, issueId=1152342291831681269, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=620, endPage=628, ext={EN=ArticleExt(id=1152342295727714817, articleId=1152342295450890752, tenantId=1146029695717560320, journalId=1146119893612605453, language=EN, title=Numerical study on the heat transfer characteristics of double U-tube ground heat exchanger under seepage condition, columnId=null, journalTitle=Renewable Energy Resources, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Based on the porous medium model, a threedimensional double Utube heat exchanger heat transfer model considering groundwater seepage was established, and the effects of seepage velocity and tube flow velocity on the temperature field of the heat exchanger were investigated by numerical simulation method. Moreover, the comparison of heat transfer performance was completed for the round tube (the crosssectional aspect ratio =1) with the flatoval tube ( is 0.54, 0.44, 0.34, respectively). The results show that increasing the seepage velocity and the tube flow velocity can increase the heat transfer capacity of the tube. When decreases, the heat transfer capacity increases more in the inlet tube than the outlet tube, and more in the vertically arranged tube than the horizontally arranged one. Reducing the aspect ratio of the tube crosssection can reduce the thermal resistance of the borehole and improve the heat exchange capacity of the tube, but it will also make the pressure drop of the tube increase, and the thermal shortcircuit loss is increase. When v=1.50×105 m/s, u=1.3 m/s, compared to the round tube, the heat exchange capacity of the flatoval tube with (=0.34 increases by 11.4%, the thermal resistance of the borehole decreases by 20.52%, and the pressure drop increases by 24.32%.
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文章基于多孔介质模型,建立了考虑地下水渗流的双 U型地埋管换热器三维传热模型,采用数值模拟方法分析了渗流速度和管内流速对换热器温度场的影响,并对比了圆管(管截面纵横比ţ=1)与扁管(分别为0.54,0.44,0.34)的换热性能。结果表明:增大渗流速度和管内流速u均可以提高埋管换热量;当ğ减小时,进水管换热量的增幅大于出水管的换热量,垂直于渗流方向布置埋管换热量的增幅大于沿渗流方向布置的埋管换热量;减小管截面纵横比可以减小钻孔热阻并提高埋管换热量,但也会使埋管压降增大,热短路损失有所增大;当v=1.50×105 m/s,u=1.3 m/s时,与圆管相比,=0.34 的扁管换热量提高了 11.4%,钻孔热阻降低了20.52%,压降增加了24.32%。
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42(5): 16-23., articleTitle=地下水渗流与地源热泵热量运移耦合模拟, refAbstract=null), Reference(id=1159146035924021401, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, doi=null, pmid=null, pmcid=null, year=2016, volume=44, issue=12, pageStart=75, pageEnd=82, url=null, language=null, rfNumber=[16], rfOrder=15, authorNames=金光, 张枭然, 吴晅, journalName=流体机械, refType=null, unstructuredReference=金光, 张枭然, 吴晅, 等. 基于不平衡系数对地埋管热短路的评价与分析[J].
流体机械,
2016,
44(12): 75-82., articleTitle=基于不平衡系数对地埋管热短路的评价与分析, refAbstract=null)], funds=[Fund(id=1159146034829308040, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, awardId=52278118, language=CN, fundingSource=国家自然科学基金资助项目(52278118), fundOrder=null, country=null), Fund(id=1159146034892222601, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, awardId=202203021211167, language=CN, fundingSource=山西省自然科学基金(202203021211167), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1159146031683579983, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, xref=1, ext=[AuthorCompanyExt(id=1159146031691968592, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, companyId=1159146031683579983, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 College of Electrical and Power Engineering Taiyuan University of Technology Taiyuan 030024 China), AuthorCompanyExt(id=1159146031700357201, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, companyId=1159146031683579983, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 太原理工大学 电气与动力工程学院 山西 太原 030024)])], figs=[ArticleFig(id=1159146033168363628, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=null, caption=null, figureFileSmall=UQdcNycCXlhNb7HNBELChA==, figureFileBig=7ncey1z8hZlPzNZ4N4NwRQ==, tableContent=null), ArticleFig(id=1159146033235472493, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=null, caption=null, figureFileSmall=UQdcNycCXlhNb7HNBELChA==, figureFileBig=7ncey1z8hZlPzNZ4N4NwRQ==, tableContent=null), ArticleFig(id=1159146033285804142, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 1, caption=
Schematic diagram of the internal structure of the borehole and the computational domain, figureFileSmall=JZsPGrULhqGh7Swxv1tSuw==, figureFileBig=vzZYNnk/kFagUb45aff/XA==, tableContent=null), ArticleFig(id=1159146033331941487, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 1, caption=
钻井内部结构及计算域示意图, figureFileSmall=JZsPGrULhqGh7Swxv1tSuw==, figureFileBig=vzZYNnk/kFagUb45aff/XA==, tableContent=null), ArticleFig(id=1159146033378078832, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 2, caption=
Comparison of simulation results with literature [13], figureFileSmall=GefRVIMXdxiGJxe5aM+EyA==, figureFileBig=yd1Z2xJyjBDM8nWYBlSucA==, tableContent=null), ArticleFig(id=1159146033424216177, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 2, caption=
模拟结果与文献[13]对比, figureFileSmall=GefRVIMXdxiGJxe5aM+EyA==, figureFileBig=yd1Z2xJyjBDM8nWYBlSucA==, tableContent=null), ArticleFig(id=1159146033474547826, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 3, caption=
Temperature distribution inside borehole with different seepage velocities at$3\mathrm{\;m}$ underground, figureFileSmall=jAnyHGIlXJJfgq/T/ZIWdA==, figureFileBig=HvBqIupkkTAMkThQzl8sWg==, tableContent=null), ArticleFig(id=1159146033529073779, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 3, caption=
地下$3\mathrm{\;m}$ 处不同渗流速度下钻井内部温度分布, figureFileSmall=jAnyHGIlXJJfgq/T/ZIWdA==, figureFileBig=HvBqIupkkTAMkThQzl8sWg==, tableContent=null), ArticleFig(id=1159146033604571252, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 4, caption=
Temperature distribution of soil with different seepage velocities at$3\mathrm{\;m}$ underground, figureFileSmall=PWm/a/ybLxb0liXnqYs4zA==, figureFileBig=9K1HD3SVlrooWnVhsmT2Eg==, tableContent=null), ArticleFig(id=1159146033671680117, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 4, caption=
地下$3\mathrm{\;m}$ 处不同渗流速度下土壤温度分布, figureFileSmall=PWm/a/ybLxb0liXnqYs4zA==, figureFileBig=9K1HD3SVlrooWnVhsmT2Eg==, tableContent=null), ArticleFig(id=1159146033730400374, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 5, caption=
Temperature distribution with different tube flow velocities at$3\mathrm{\;m}$ underground, figureFileSmall=LLr+AFCB0walOP6sATlIOg==, figureFileBig=UfwafjnxZ3gDdxMK5bbODw==, tableContent=null), ArticleFig(id=1159146033784926327, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 5, caption=
地下$3\mathrm{\;m}$ 处管内不同流速下截面温度分布, figureFileSmall=LLr+AFCB0walOP6sATlIOg==, figureFileBig=UfwafjnxZ3gDdxMK5bbODw==, tableContent=null), ArticleFig(id=1159146033843646584, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 6, caption=
Effect of soil layering conditions and seepage velocity on heat exchange capacity, figureFileSmall=CpfbAGhkRxZppNYfgequdA==, figureFileBig=12oXz3q0Isj+hbFrISPTeA==, tableContent=null), ArticleFig(id=1159146033902366841, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 6, caption=
土壤分层情况与渗流速度对换热量的影响, figureFileSmall=CpfbAGhkRxZppNYfgequdA==, figureFileBig=12oXz3q0Isj+hbFrISPTeA==, tableContent=null), ArticleFig(id=1159146033961087098, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 7, caption=
Effect of tube cross-section aspect ratio on borehole thermal resistance, tube pressure drop,, figureFileSmall=8w0XSjRdXux+yTuFeoV0Lg==, figureFileBig=cKGbIlEVj1u8Lga7Jf033Q==, tableContent=null), ArticleFig(id=1159146034024001659, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 7, caption=
管截面纵横比对钻孔热阻、埋管压降及支管单位井深换热量的影响, figureFileSmall=8w0XSjRdXux+yTuFeoV0Lg==, figureFileBig=cKGbIlEVj1u8Lga7Jf033Q==, tableContent=null), ArticleFig(id=1159146034078527612, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 8, caption=
Curves for the effect of seepage velocity and aspect ratio on heat exchange and borehole thermal resistance, figureFileSmall=5/ZoALoNr2OHATztUxNk5Q==, figureFileBig=sMLlDA5evLEX0syiVxmgfQ==, tableContent=null), ArticleFig(id=1159146034128859261, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 8, caption=
渗流速度以及纵横比对换热量和钻孔热阻的影响, figureFileSmall=5/ZoALoNr2OHATztUxNk5Q==, figureFileBig=sMLlDA5evLEX0syiVxmgfQ==, tableContent=null), ArticleFig(id=1159146034183385214, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 9, caption=
Curves for the effect of seepage velocity and aspect ratio on the thermal short-circuit unbalance coefficient, figureFileSmall=j+8nyfkPQiA0hD18xlf/9w==, figureFileBig=IMOttbW5Qtu/rQXUQfgTuQ==, tableContent=null), ArticleFig(id=1159146034242105471, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 9, caption=
渗流速度以及纵横比对热短路不平衡系数的影响, figureFileSmall=j+8nyfkPQiA0hD18xlf/9w==, figureFileBig=IMOttbW5Qtu/rQXUQfgTuQ==, tableContent=null), ArticleFig(id=1159146034288242816, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 10, caption=
Curves for the effect of tube flow velocity and aspect ratio on heat exchange and borehole thermal resistance, figureFileSmall=ooFEXLbbqqthioUPouSI/w==, figureFileBig=QpRdy3YTZlbid3MG4Y6Nog==, tableContent=null), ArticleFig(id=1159146034342768769, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 10, caption=
管内流速以及纵横比对换热量和钻孔热阻的影响, figureFileSmall=ooFEXLbbqqthioUPouSI/w==, figureFileBig=QpRdy3YTZlbid3MG4Y6Nog==, tableContent=null), ArticleFig(id=1159146034393100418, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Fig. 11, caption=
Curves for the effect of tube flow velocity and aspect ratio on the thermal short-circuit unbalance coefficient, figureFileSmall=aBxaLGf3haYyY3EEOPfztA==, figureFileBig=xSdpsISBL+RvGlsoWLoiEQ==, tableContent=null), ArticleFig(id=1159146034460209283, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=图 11, caption=
管内流速以及纵横比与热短路不平衡系数的关系, figureFileSmall=aBxaLGf3haYyY3EEOPfztA==, figureFileBig=xSdpsISBL+RvGlsoWLoiEQ==, tableContent=null), ArticleFig(id=1159146034518929540, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Table 1, caption=
Double U-tube heat exchanger structure parameters, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 模型尺寸(长$\times$宽 $\times$高)/m $\times$ m $\times$ m | $5 \times 5 \times {103}$ |
| 钻井深度 $H/\mathrm{m}$ | 105 |
| 模型顶部与地表距离/m | 2 |
| 土壤层厚(粗砂/黏土/砾石/岩泥)/m | 25/25/25/28 |
| 钻井直径 ${D}_{\mathrm{b}}/\mathrm{{mm}}$ | 180 |
| 支管间距 ${D}_{\mathrm{s}}/\mathrm{{mm}}$ | 54 |
| 圆管半径 ${R}_{\mathrm{c}}/\mathrm{{mm}}$ | 13 |
| 扁管弧段半径 ${R}_{\mathrm{f}}/\mathrm{{mm}}$ | 7/8/9 |
| 扁管直段 $L/\mathrm{{mm}}$ | 26.91/20.61/15.35 |
| 扁管纵横比 $\zeta$ | 0.34/0.44/0.54 |
| 埋管与模型底部距离/m | 3 |
| 管 1 和管 2 底端距离/mm | 126 |
), ArticleFig(id=1159146034577649797, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=表 1, caption=
双U型换热器结构参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 模型尺寸(长$\times$宽 $\times$高)/m $\times$ m $\times$ m | $5 \times 5 \times {103}$ |
| 钻井深度 $H/\mathrm{m}$ | 105 |
| 模型顶部与地表距离/m | 2 |
| 土壤层厚(粗砂/黏土/砾石/岩泥)/m | 25/25/25/28 |
| 钻井直径 ${D}_{\mathrm{b}}/\mathrm{{mm}}$ | 180 |
| 支管间距 ${D}_{\mathrm{s}}/\mathrm{{mm}}$ | 54 |
| 圆管半径 ${R}_{\mathrm{c}}/\mathrm{{mm}}$ | 13 |
| 扁管弧段半径 ${R}_{\mathrm{f}}/\mathrm{{mm}}$ | 7/8/9 |
| 扁管直段 $L/\mathrm{{mm}}$ | 26.91/20.61/15.35 |
| 扁管纵横比 $\zeta$ | 0.34/0.44/0.54 |
| 埋管与模型底部距离/m | 3 |
| 管 1 和管 2 底端距离/mm | 126 |
), ArticleFig(id=1159146034644758662, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=EN, label=Table 2, caption=
Material properties and parameters related to porous media model, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料 | 密度 | 比热容/J | 导热系数 | 动力粘度/Pa | 孔隙率 | 粘性阻力系数 |
| 第 1 层土壤(粗砂) | 1 600 | 1 645 | 1.8 | | 0.33 | ${2.44} \times {10}^{10}$ |
| 第 2 层土壤(黏土) | 2208.2 | 695.31 | 2.661 | | 0.42 | ${2.724}\;3 \times {10}^{13}$ |
| 第 3 层土壤(砾石) | 2000.77 | 993.52 | 2.311 | | 0.3 | ${1.209}\;9 \times {10}^{9}$ |
| 第 4 层土壤(岩泥) | 2015.3 | 970.63 | 2.335 | | 0.31 | ${9.588}\;9 \times {10}^{9}$ |
| 回填土 | 1900 | 900 | 2.2 | | | |
| 管内循环水 | 993.99 | 4 174.59 | 0.63 | 0.000 728 | | |
| 渗流水 | 998.84 | 4 186.22 | 0.59 | 0.001 147 | | |
| U 型管(PE) | 950 | 2300 | 0.45 | | | |
), ArticleFig(id=1159146034711867527, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1152342295450890752, language=CN, label=表 2, caption=
材料物性以及与多孔介质模型相关的参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 材料 | 密度 | 比热容/J | 导热系数 | 动力粘度/Pa | 孔隙率 | 粘性阻力系数 |
| 第 1 层土壤(粗砂) | 1 600 | 1 645 | 1.8 | | 0.33 | ${2.44} \times {10}^{10}$ |
| 第 2 层土壤(黏土) | 2208.2 | 695.31 | 2.661 | | 0.42 | ${2.724}\;3 \times {10}^{13}$ |
| 第 3 层土壤(砾石) | 2000.77 | 993.52 | 2.311 | | 0.3 | ${1.209}\;9 \times {10}^{9}$ |
| 第 4 层土壤(岩泥) | 2015.3 | 970.63 | 2.335 | | 0.31 | ${9.588}\;9 \times {10}^{9}$ |
| 回填土 | 1900 | 900 | 2.2 | | | |
| 管内循环水 | 993.99 | 4 174.59 | 0.63 | 0.000 728 | | |
| 渗流水 | 998.84 | 4 186.22 | 0.59 | 0.001 147 | | |
| U 型管(PE) | 950 | 2300 | 0.45 | | | |
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