| PCC能量桩换热效率数值模拟分析 |
| |
| 引用本文： | 朱大河,谢君泰,陆浩杰,刘大鹏,季伟伟. PCC能量桩换热效率数值模拟分析[J]. 水利与建筑工程学报, 2020, 0(2): 237-243 |
| |
| 作者姓名： | 朱大河 谢君泰 陆浩杰 刘大鹏 季伟伟 |
| |
| 作者单位： | 银西铁路有限公司;中铁第一勘察设计院集团有限公司;重庆大学土木工程学院;河海大学岩土力学与堤坝工程教育部重点实验室 |
| |
| 基金项目： | 中国铁路总公司科技研究开发计划课题(2017G007-G)。 |
| |
| 摘 要： | PCC能量桩是一种在现浇大直径管桩(PCC桩)桩体内进行开放式埋管的新型能量桩技术;具有传热效率高、方便检修与维护等技术优势。基于数值模拟方法,建立PCC能量桩、传统能量桩换热效率分析数值模型;该文通过与相关模型试验结果的对比分析,验证数值模型的准确性和可靠性;继而,探讨进/出水口布置形式、传热液体等因素对PCC能量桩换热效率的影响规律。研究结果表明,相同条件下,PCC能量桩换热效率较常规能量桩高;PCC能量桩内开放式传热管布置形式影响换热效率。
|
| 关 键 词： | 桩基 能量桩 PCC能量桩 换热效率 温度响应 |
Numerical Simulation on Heat Transfer Efficiency of PCC Energy Pile |
| |
| ZHU Dahe,XIE Juntai,LU Haojie,LIU Dapeng,JI Weiwei. Numerical Simulation on Heat Transfer Efficiency of PCC Energy Pile[J]. Journal of Water Resources Architectural Engineering, 2020, 0(2): 237-243 |
| |
| Authors: | ZHU Dahe XIE Juntai LU Haojie LIU Dapeng JI Weiwei |
| |
| Affiliation: | (Yinchuan-Xi’an Railway Co.,Ltd.,Wuzhong,Ningxia 751100,China;China Railway First Survey and Design Institute Group Ltd.,Xi’an,Shaanxi 710068,China;College of Civil Engineering,Chongqing University,Chongqing 400045,China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing,Jiangsu 210098,China) |
| |
| Abstract: | The heat pipe is open buried inside of PCC pile. PCC energy pile has many technical advantages, such as high heat transfer efficiency, convenient overhaul and maintenance, etc. Based on the COMSOL numerical simulation method, the numerical model of PCC energy pile and traditional energy pile heat transfer efficiency was established. The accuracy and reliability of numerical model were verified by comparison with the related model test results. Then, the heat transfer efficiency of PCC pile influenced by the layout of inlet/outlet fluid, heat transfer fluid types are further discussed. It shows that the heat transfer efficiency of PCC pile is a little higher than that of conventional energy pile under the same conditions. The arrangement of open heat transfer tubes in PCC pile affects the heat transfer efficiency. |
| |
| Keywords: | pile foundation energy pile PCC pile heat transfer efficiency temperature response |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
