Article(id=1217789899642688028, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1217789884081820362, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2407648, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1728921600000, receivedDateStr=2024-10-15, revisedDate=1745251200000, revisedDateStr=2025-04-22, acceptedDate=null, acceptedDateStr=null, onlineDate=1768273337516, onlineDateStr=2026-01-13, pubDate=1753632000000, pubDateStr=2025-07-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1768273337516, onlineIssueDateStr=2026-01-13, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1768273337516, creator=13701087609, updateTime=1768273337516, updator=13701087609, issue=Issue{id=1217789884081820362, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='21', pageStart='8761', pageEnd='9209', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1768273333807, creator=13701087609, updateTime=1768273602927, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1217791012932604619, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1217789884081820362, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1217791012932604620, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1217789884081820362, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=9081, endPage=9089, ext={EN=ArticleExt(id=1217789900578017929, articleId=1217789899642688028, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Annual Variation Characteristics of Soil Temperature in Medium-shallow Buried Tube Heat Exchanger System, columnId=1156262729917780302, journalTitle=Science Technology and Engineering, columnName=Papers·Architectural Science, runingTitle=null, highlight=null, articleAbstract=
To investigate the annual variation characteristics of soil temperature around the medium-shallow coaxial tube ground heat exchanger, a two-dimensional unsteady heat transfer model for the medium-shallow coaxial tube ground heat exchanger was established. The model was solved based on the finite volume method and validated using experimental data from the project. The research findings indicate that under individual heating and cooling conditions, the circulation mode of outer-in and inner-out has a greater impact on soil temperature at a depth of 100 m, while the inner-in and outer-out mode has a more significant effect on soil temperature at a depth of 500 m. During summer conditions, reverse heat transfer is more likely to occur with the outer-in and inner-out circulation mode. At the end of the first winter (or summer) season, the thermal influence radius of the soil is less than 10 m, but this radius increases over time. At the end of one operational cycle, the soil temperature increases at depths shallower than approximately 300 m and decreases at depths deeper than approximately 300 m. Orthogonal experiments reveal that the inlet water temperature in both winter and summer has a notable impact on temperature fluctuations at a soil depth of 100 m, while the inlet water temperature in summer significantly affects temperature fluctuations at a soil depth of 500 m.
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为研究中浅层同轴套管式地埋管换热器周围土壤温度全年变化特性,建立了二维中浅层同轴套管式地埋管换热器非稳态传热模型,基于有限体积法进行求解,并用项目实验数据进行验证。研究结果表明:单独制热制冷工况下,循环方式外进内出对土壤深度100 m温度影响较大,内进外出对土壤深度500 m温度影响较大,夏季工况在外进内出循环方式下更易出现逆向传热现象。第一年冬(夏)季结束时土壤热影响半径小于10 m,随着时间增加土壤热影响半径增大。一个运行周期结束,300 m左右以浅土壤温度升高,300 m左右以深土壤温度降低。通过正交实验可得,冬夏季进水温度对土壤深度为100 m的温度波动影响显著,夏季进水温度对土壤深度为500 m的温度波动影响显著。
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1 School of Energy and Environmental Engineering, Hebei University of Technology, Handan 056038, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1217860107447227180, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, authorId=1217860107153625879, language=CN, stringName=牛晓洁, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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牛晓洁(1998—),女,汉族,河北邢台人,硕士研究生。研究方向:地热资源利用。E-mail:2783392472@qq.com。
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牛晓洁(1998—),女,汉族,河北邢台人,硕士研究生。研究方向:地热资源利用。E-mail:2783392472@qq.com。
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2 Hebei Institute of Engineering and Technology, Shijiazhuang 050091, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1217860108231562074, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, authorId=1217860107891823435, language=CN, stringName=王景刚, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Schematic diagram of middle-shallow coaxial bushing buried tube heat exchanger and its surrounding rock and soil bodies, figureFileSmall=zWN0acWNab0QHQ2eCagY/A==, figureFileBig=dKhfgqFu34m600LpYiMM4A==, tableContent=null), ArticleFig(id=1217860112459419749, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图1, caption=
中浅层同轴套管式地埋管换热器及其周围岩土体示意图, figureFileSmall=zWN0acWNab0QHQ2eCagY/A==, figureFileBig=dKhfgqFu34m600LpYiMM4A==, tableContent=null), ArticleFig(id=1217860112618803315, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Fig.2, caption=
Geometric structure of coaxial tube heat exchanger and surrounding rock and soil mass, figureFileSmall=Ar9Yi5FDLMXNg2nV7uh/5A==, figureFileBig=SKu/VK1/eGp7pSYD5yAukQ==, tableContent=null), ArticleFig(id=1217860112753021054, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图2, caption=
同轴套管式换热器与周围岩土体几何结构, figureFileSmall=Ar9Yi5FDLMXNg2nV7uh/5A==, figureFileBig=SKu/VK1/eGp7pSYD5yAukQ==, tableContent=null), ArticleFig(id=1217860112966930569, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Fig.3, caption=
Comparison between simulated outlet water temperature and experimental value, figureFileSmall=gXX/b2a6RISJ5bGWuyisVw==, figureFileBig=pAAr/K3MDgdmnHq2W4008w==, tableContent=null), ArticleFig(id=1217860113080176792, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图3, caption=
模拟出口水温与实验值对比, figureFileSmall=gXX/b2a6RISJ5bGWuyisVw==, figureFileBig=pAAr/K3MDgdmnHq2W4008w==, tableContent=null), ArticleFig(id=1217860113226977451, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Fig.4, caption=
Distribution of soil temperature at radial distance with different cycling modes in winter, figureFileSmall=5LmS9r/AN4+TkxZsLlR+kw==, figureFileBig=Pq8Oc8EFpmKlhvWsvkMFzg==, tableContent=null), ArticleFig(id=1217860113373778109, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图4, caption=
冬季不同循环方式径向距离土壤温度分布, figureFileSmall=5LmS9r/AN4+TkxZsLlR+kw==, figureFileBig=Pq8Oc8EFpmKlhvWsvkMFzg==, tableContent=null), ArticleFig(id=1217860113482830034, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Fig.5, caption=
Distribution of soil temperature at radial distance with different cycling modes in summer, figureFileSmall=p8WPYNPpWiEYdhipLTkuOw==, figureFileBig=j5RZwjpdvmJib0Zd3zhwjg==, tableContent=null), ArticleFig(id=1217860113587687644, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图5, caption=
夏季不同循环方式径向距离土壤温度分布, figureFileSmall=p8WPYNPpWiEYdhipLTkuOw==, figureFileBig=j5RZwjpdvmJib0Zd3zhwjg==, tableContent=null), ArticleFig(id=1217860113692545253, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Fig.6, caption=
Influence of different operating parameters on heat transfer, figureFileSmall=Wh01h/0Cfctg6BjslfCtqA==, figureFileBig=gkBbczJL7kUbr05ffoTHCw==, tableContent=null), ArticleFig(id=1217860113864511732, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图6, caption=
不同运行参数对换热量影响, figureFileSmall=Wh01h/0Cfctg6BjslfCtqA==, figureFileBig=gkBbczJL7kUbr05ffoTHCw==, tableContent=null), ArticleFig(id=1217860113969369351, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Fig.7, caption=
Effect of different operating parameters on soil temperature at r=0.5 m, z=100 m, figureFileSmall=QsYJ3G7Jv80kAueAAaczLQ==, figureFileBig=Pu9blTYXe5qLxqXGrY1cWg==, tableContent=null), ArticleFig(id=1217860114107781398, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图7, caption=
r=0.5 m,z=100 m处不同运行参数对土壤温度影响, figureFileSmall=QsYJ3G7Jv80kAueAAaczLQ==, figureFileBig=Pu9blTYXe5qLxqXGrY1cWg==, tableContent=null), ArticleFig(id=1217860114346856748, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Fig.8, caption=
Effect of different operating parameters on soil temperature at r=0.5 m, z=300 m, figureFileSmall=6kimooQtW+fcPpmUqc95XQ==, figureFileBig=gXIU5vUMRZvMvO3JHZak5g==, tableContent=null), ArticleFig(id=1217860114481074494, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图8, caption=
r=0.5 m,z=300 m处不同运行参数对土壤温度影响, figureFileSmall=6kimooQtW+fcPpmUqc95XQ==, figureFileBig=gXIU5vUMRZvMvO3JHZak5g==, tableContent=null), ArticleFig(id=1217860114619486542, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Fig.9, caption=
Effect of different operating parameters on soil temperature at r=0.5 m, z=500 m, figureFileSmall=1HvcSJ/U8NlvFLijOLkhxw==, figureFileBig=5sVA/av2psa9XtYVnOFsrg==, tableContent=null), ArticleFig(id=1217860114736927069, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=图9, caption=
r=0.5 m,z=500 m处不同运行参数对土壤温度影响, figureFileSmall=1HvcSJ/U8NlvFLijOLkhxw==, figureFileBig=5sVA/av2psa9XtYVnOFsrg==, tableContent=null), ArticleFig(id=1217860115995218280, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Table 1, caption=
Results of grid independence verification
, figureFileSmall=null, figureFileBig=null, tableContent=
| 网格数 | 出口水温/℃ | 网格数 | 出口水温/℃ |
| 35 654 | 35.04 | 125 774 | 35.15 |
| 83 934 | 35.11 | 270 174 | 35.15 |
), ArticleFig(id=1217860116121047409, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=表1, caption=
网格无关性验证结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 网格数 | 出口水温/℃ | 网格数 | 出口水温/℃ |
| 35 654 | 35.04 | 125 774 | 35.15 |
| 83 934 | 35.11 | 270 174 | 35.15 |
), ArticleFig(id=1217860116242682240, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Table 2, caption=
Experimental parameters and simulated parameters in this paper
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 换热器深度/m | 300 |
| 岩土体导热系数/[W·(m·K)-1] | 2.09 |
| 岩土体体积比热容/[J·(m3·K)-1] | 2.46×106 |
| 钻孔直径/m | 0.133 |
| 外管外径/m | 0.108 |
| 外管内径/m | 0.099 |
| 内管外径/m | 0.063 |
| 内管内径/m | 0.052 6 |
| 外管导热系数/[W·(m·K)-1] | 45 |
| 内管导热系数/[W·(m·K)-1] | 0.24 |
| 回填材料导热系数/[W·(m·K)-1] | 1.83 |
| 外管体积比热容/[J·(m3·K)-1] | 3.45×106 |
| 内管体积比热容/[J·(m3·K)-1] | 1.9×106 |
| 回填材料体积比热容/[J·(m3·K)-1] | 2.42×106 |
| 大气年平均温度(地表温度)/℃ | 14.6 |
), ArticleFig(id=1217860116439814542, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=表2, caption=
实验参数与本文模拟参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 换热器深度/m | 300 |
| 岩土体导热系数/[W·(m·K)-1] | 2.09 |
| 岩土体体积比热容/[J·(m3·K)-1] | 2.46×106 |
| 钻孔直径/m | 0.133 |
| 外管外径/m | 0.108 |
| 外管内径/m | 0.099 |
| 内管外径/m | 0.063 |
| 内管内径/m | 0.052 6 |
| 外管导热系数/[W·(m·K)-1] | 45 |
| 内管导热系数/[W·(m·K)-1] | 0.24 |
| 回填材料导热系数/[W·(m·K)-1] | 1.83 |
| 外管体积比热容/[J·(m3·K)-1] | 3.45×106 |
| 内管体积比热容/[J·(m3·K)-1] | 1.9×106 |
| 回填材料体积比热容/[J·(m3·K)-1] | 2.42×106 |
| 大气年平均温度(地表温度)/℃ | 14.6 |
), ArticleFig(id=1217860116615975332, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Table 3, caption=
Orthogonal experimental factors and levels
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 因素 | 水平1 | 水平2 | 水平3 |
| A | 冬季进水温度/℃ | 4 | 6 | 8 |
| B | 夏季进水温度/℃ | 29 | 32 | 35 |
| C | 冬夏季循环流量/ (m3·h-1) | 2.5 | 3.5 | 4.5 |
), ArticleFig(id=1217860116762775985, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=表3, caption=
正交实验因素和水平
, figureFileSmall=null, figureFileBig=null, tableContent=
| 编号 | 因素 | 水平1 | 水平2 | 水平3 |
| A | 冬季进水温度/℃ | 4 | 6 | 8 |
| B | 夏季进水温度/℃ | 29 | 32 | 35 |
| C | 冬夏季循环流量/ (m3·h-1) | 2.5 | 3.5 | 4.5 |
), ArticleFig(id=1217860116884410817, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Table 4, caption=
Orthogonal experimental results
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | A | B | C | 空白组 | z=100 m 土壤温差/℃ | z=500 m土壤 温差绝对值/℃ |
| 1 | 1 | 1 | 1 | 1 | 0.35 | 0.37 |
| 2 | 1 | 2 | 3 | 2 | 0.59 | 0.32 |
| 3 | 1 | 3 | 2 | 3 | 0.73 | 0.18 |
| 4 | 2 | 1 | 3 | 3 | 0.46 | 0.42 |
| 5 | 2 | 2 | 2 | 1 | 0.62 | 0.28 |
| 6 | 2 | 3 | 1 | 2 | 0.72 | 0.16 |
| 7 | 3 | 1 | 2 | 2 | 0.51 | 0.38 |
| 8 | 3 | 2 | 1 | 3 | 0.63 | 0.24 |
| 9 | 3 | 3 | 3 | 1 | 0.93 | 0.14 |
| K1 | 1.67 | 1.32 | 1.70 | 1.90 | 以z=100 m土壤温差为目标的极差分析因素影响次序:B>A>C |
| K2 | 1.8 | 1.84 | 1.86 | 1.82 |
| K3 | 2.07 | 2.38 | 1.98 | 1.82 |
| k1 | 0.56 | 0.44 | 0.57 | 0.63 |
| k2 | 0.6 | 0.61 | 0.62 | 0.61 |
| k3 | 0.69 | 0.79 | 0.66 | 0.61 |
| R | 0.13 | 0.35 | 0.09 | 0.03 |
| K1 | 0.87 | 1.17 | 0.77 | 0.79 | 以z=500 m土壤温差绝对值为目标的极差分析因素影响次序:B>A>C |
| K2 | 0.86 | 0.84 | 0.84 | 0.86 |
| K3 | 0.76 | 0.48 | 0.88 | 0.84 |
| k1 | 0.29 | 0.39 | 0.26 | 0.26 |
| k2 | 0.29 | 0.28 | 0.28 | 0.29 |
| k3 | 0.25 | 0.16 | 0.29 | 0.28 |
| R | 0.04 | 0.23 | 0.03 | 0.03 |
), ArticleFig(id=1217860117039600082, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=表4, caption=
正交实验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | A | B | C | 空白组 | z=100 m 土壤温差/℃ | z=500 m土壤 温差绝对值/℃ |
| 1 | 1 | 1 | 1 | 1 | 0.35 | 0.37 |
| 2 | 1 | 2 | 3 | 2 | 0.59 | 0.32 |
| 3 | 1 | 3 | 2 | 3 | 0.73 | 0.18 |
| 4 | 2 | 1 | 3 | 3 | 0.46 | 0.42 |
| 5 | 2 | 2 | 2 | 1 | 0.62 | 0.28 |
| 6 | 2 | 3 | 1 | 2 | 0.72 | 0.16 |
| 7 | 3 | 1 | 2 | 2 | 0.51 | 0.38 |
| 8 | 3 | 2 | 1 | 3 | 0.63 | 0.24 |
| 9 | 3 | 3 | 3 | 1 | 0.93 | 0.14 |
| K1 | 1.67 | 1.32 | 1.70 | 1.90 | 以z=100 m土壤温差为目标的极差分析因素影响次序:B>A>C |
| K2 | 1.8 | 1.84 | 1.86 | 1.82 |
| K3 | 2.07 | 2.38 | 1.98 | 1.82 |
| k1 | 0.56 | 0.44 | 0.57 | 0.63 |
| k2 | 0.6 | 0.61 | 0.62 | 0.61 |
| k3 | 0.69 | 0.79 | 0.66 | 0.61 |
| R | 0.13 | 0.35 | 0.09 | 0.03 |
| K1 | 0.87 | 1.17 | 0.77 | 0.79 | 以z=500 m土壤温差绝对值为目标的极差分析因素影响次序:B>A>C |
| K2 | 0.86 | 0.84 | 0.84 | 0.86 |
| K3 | 0.76 | 0.48 | 0.88 | 0.84 |
| k1 | 0.29 | 0.39 | 0.26 | 0.26 |
| k2 | 0.29 | 0.28 | 0.28 | 0.29 |
| k3 | 0.25 | 0.16 | 0.29 | 0.28 |
| R | 0.04 | 0.23 | 0.03 | 0.03 |
), ArticleFig(id=1217860117157040605, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=EN, label=Table 5, caption=
Results of variance analysis
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方差来源 | 离差平方和 | 自由度 | 均方 | F | P | 显著性 | |
| A | 0.028 | 2 | 0.013 9 | 19.52 | 0.049 | 显著 | 以z=100 m土壤温 差为目标的 方差分析 |
| B | 0.187 | 2 | 0.093 6 | 131.69 | 0.007 | 显著 |
| C | 0.013 | 2 | 0.006 6 | 9.25 | 0.098 | — |
| 误差 | 0.001 | 2 | 0.000 7 | 1 | 0.500 | — |
| A | 0.002 | 2 | 0.001 2 | 2.85 | 0.260 | | 以z=500 m土壤温 差绝对值为 目标的方差分析 |
| B | 0.079 | 2 | 0.039 7 | 91.62 | 0.011 | 显著 |
| C | 0.002 | 2 | 0.001 0 | 2.38 | 0.295 | — |
| 误差 | 0.001 | 2 | 0.000 4 | 1 | 0.500 | — |
), ArticleFig(id=1217860117299646954, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1217789899642688028, language=CN, label=表5, caption=
方差分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 方差来源 | 离差平方和 | 自由度 | 均方 | F | P | 显著性 | |
| A | 0.028 | 2 | 0.013 9 | 19.52 | 0.049 | 显著 | 以z=100 m土壤温 差为目标的 方差分析 |
| B | 0.187 | 2 | 0.093 6 | 131.69 | 0.007 | 显著 |
| C | 0.013 | 2 | 0.006 6 | 9.25 | 0.098 | — |
| 误差 | 0.001 | 2 | 0.000 7 | 1 | 0.500 | — |
| A | 0.002 | 2 | 0.001 2 | 2.85 | 0.260 | | 以z=500 m土壤温 差绝对值为 目标的方差分析 |
| B | 0.079 | 2 | 0.039 7 | 91.62 | 0.011 | 显著 |
| C | 0.002 | 2 | 0.001 0 | 2.38 | 0.295 | — |
| 误差 | 0.001 | 2 | 0.000 4 | 1 | 0.500 | — |
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