Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data
Thermo-active diaphragm walls have proved their effectiveness in the thermal conditioning of buildings and infrastructures. However, some aspects still need to be investigated in order to tailor methods and tools for an accurate prediction of their energy and structural performance. In this perspect...
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Series: | Journal of Rock Mechanics and Geotechnical Engineering |
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doaj-39434d1ae4b44981ac4470e62027e1ea2020-11-24T20:57:55ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552018-12-0110611451153Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring dataDonatella Sterpi0Adriana Angelotti1Omid Habibzadeh-Bigdarvish2Daniel Jalili3Department of Civil and Environmental Engineering, Politecnico di Milano, Milano, Italy; Corresponding author.Energy Department, Politecnico di Milano, Milano, ItalyDepartment of Civil and Environmental Engineering, Politecnico di Milano, Milano, ItalyDepartment of Civil and Environmental Engineering, Politecnico di Milano, Milano, ItalyThermo-active diaphragm walls have proved their effectiveness in the thermal conditioning of buildings and infrastructures. However, some aspects still need to be investigated in order to tailor methods and tools for an accurate prediction of their energy and structural performance. In this perspective, some issues are addressed that concern the definition of models for the numerical analysis, in particular issues about the modelling of geometry and thermal boundary conditions. Taking advantage of a monitoring programme on a real full-scale structure, this research focuses on the assessment of heat transfer process and thermal response of diaphragm wall and soil mass on the basis of field data. Understanding of the heat transfer process contributes to the definition of the time-dependent thermal boundary conditions at the excavation side. From the analysis of thermal gradients in the wall, the condition at the excavation side is recognised as a major factor that influences the heat transfer process, governing the direction of the heat flux in different seasons of operation of the geothermal system. Keywords: Heat transfer, Monitoring data, Near-surface geothermal energy, Energy geostructurehttp://www.sciencedirect.com/science/article/pii/S1674775518301276 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Donatella Sterpi Adriana Angelotti Omid Habibzadeh-Bigdarvish Daniel Jalili |
spellingShingle |
Donatella Sterpi Adriana Angelotti Omid Habibzadeh-Bigdarvish Daniel Jalili Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data Journal of Rock Mechanics and Geotechnical Engineering |
author_facet |
Donatella Sterpi Adriana Angelotti Omid Habibzadeh-Bigdarvish Daniel Jalili |
author_sort |
Donatella Sterpi |
title |
Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data |
title_short |
Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data |
title_full |
Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data |
title_fullStr |
Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data |
title_full_unstemmed |
Assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data |
title_sort |
assessment of thermal behaviour of thermo-active diaphragm walls based on monitoring data |
publisher |
Elsevier |
series |
Journal of Rock Mechanics and Geotechnical Engineering |
issn |
1674-7755 |
publishDate |
2018-12-01 |
description |
Thermo-active diaphragm walls have proved their effectiveness in the thermal conditioning of buildings and infrastructures. However, some aspects still need to be investigated in order to tailor methods and tools for an accurate prediction of their energy and structural performance. In this perspective, some issues are addressed that concern the definition of models for the numerical analysis, in particular issues about the modelling of geometry and thermal boundary conditions. Taking advantage of a monitoring programme on a real full-scale structure, this research focuses on the assessment of heat transfer process and thermal response of diaphragm wall and soil mass on the basis of field data. Understanding of the heat transfer process contributes to the definition of the time-dependent thermal boundary conditions at the excavation side. From the analysis of thermal gradients in the wall, the condition at the excavation side is recognised as a major factor that influences the heat transfer process, governing the direction of the heat flux in different seasons of operation of the geothermal system. Keywords: Heat transfer, Monitoring data, Near-surface geothermal energy, Energy geostructure |
url |
http://www.sciencedirect.com/science/article/pii/S1674775518301276 |
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AT donatellasterpi assessmentofthermalbehaviourofthermoactivediaphragmwallsbasedonmonitoringdata AT adrianaangelotti assessmentofthermalbehaviourofthermoactivediaphragmwallsbasedonmonitoringdata AT omidhabibzadehbigdarvish assessmentofthermalbehaviourofthermoactivediaphragmwallsbasedonmonitoringdata AT danieljalili assessmentofthermalbehaviourofthermoactivediaphragmwallsbasedonmonitoringdata |
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1716787151800107008 |