Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/78985
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Building Services Engineering | en_US |
dc.creator | Wang, D | en_US |
dc.creator | Lu, L | en_US |
dc.creator | Cui, P | en_US |
dc.date.accessioned | 2018-10-26T01:21:59Z | - |
dc.date.available | 2018-10-26T01:21:59Z | - |
dc.identifier.issn | 1359-4311 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/78985 | - |
dc.language.iso | en | en_US |
dc.publisher | Pergamon Press | en_US |
dc.rights | © 2018 Elsevier Ltd. All rights reserved | en_US |
dc.rights | © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | en_US |
dc.rights | The following publication Wang, D., Lu, L., & Cui, P. (2018). Simulation of thermo-mechanical performance of pile geothermal heat exchanger (PGHE) considering temperature-depend interface behavior. Applied Thermal Engineering, 139, 356-366 is available at https://doi.org/10.1016/j.applthermaleng.2018.02.020. | en_US |
dc.subject | Ground-coupled heat pump | en_US |
dc.subject | Pile geothermal heat exchanger | en_US |
dc.subject | Thermo-mechanical performance | en_US |
dc.subject | Energy pile | en_US |
dc.title | Simulation of thermo-mechanical performance of Pile Geothermal Heat Exchanger (PGHE) considering temperature-depend interface behavior | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 356 | en_US |
dc.identifier.epage | 366 | en_US |
dc.identifier.volume | 139 | en_US |
dc.identifier.doi | 10.1016/j.applthermaleng.2018.02.020 | en_US |
dcterms.abstract | Pile geothermal heat exchanger (PGHE) has attracted great interests in recent years, but some new challenges have emerged with its application, especially in understanding its thermo-mechanical behaviors. In this paper, based on the experimental data from a modified direct shear test, a finite element simulation model is developed to investigate the thermo-mechanical behavior of PGHE. The simulation model has been verified by an in-suit test. The influence of interface behavior, thermal loads, and soil properties on the PGHE's thermo-mechanical behavior has been investigated. The results show that the changes in contact force and friction coefficient has to be considered in a comprehensive way in estimating the influence of thermal load on the bearing capacity of PGHE. Compared with the results without thermal loads, bearing capacity of PGHE shows a decreasing ratio of 8.7%, and an increasing ratio of heating is found to be 13.2%. In addition, the simulation results suggest that without head load imposed, at a certain depth, the axial stress has a linear relationship with the change of temperature, but when a head load is imposed, the linear relationship is only separately valid in 'each temperature region (heating or cooling). The thermo-mechanical performance of PGHE should be fully considered during the design stage, and this paper has the certain actual reference significance to engineering applications. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Applied thermal engineering, 5 July 2018, v. 139, p. 356-366 | en_US |
dcterms.isPartOf | Applied thermal engineering | en_US |
dcterms.issued | 2018-07-05 | - |
dc.identifier.isi | WOS:000437079800033 | - |
dc.identifier.scopus | 2-s2.0-85046697213 | - |
dc.identifier.eissn | 1873-5606 | en_US |
dc.description.validate | 201810 bcrc | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | RGC-B3-0529 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.pubStatus | Published | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Simulatithermo-mechanical_Performance_Pile.pdf | Pre-Published version | 2.11 MB | Adobe PDF | View/Open |
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