E3S Web Conf.
Volume 205, 20202nd International Conference on Energy Geotechnics (ICEGT 2020)
|Number of page(s)||6|
|Section||Issues Related to Energy Piles|
|Published online||18 November 2020|
Numerical modelling of a geothermal pile in tropical environment based on a TRT Test
1 Polytechnic School of University of São Paulo, Av. Prof. Luciano Gualberto, 380 - Butantã, São Paulo, SP, Brazil.
2 Polytechnic School of University of São Paulo, Av. Prof. Luciano Gualberto, 380 - Butantã, SP, Brazil.
3 FEI University Center, Av. Humberto de Alencar Castelo Branco, 3972, São Bernardo do Campo, SP, Brazil.
4 Engineering School of São Carlos of University of São Paulo, Av. Trabalhador São Carlense 400, SC, SP, Brazil.
* Corresponding author: firstname.lastname@example.org
The continuous search for sustainable renewable energy sources has motivated the use of geothermal piles to heat or cool buildings, resulting in lower electric energy consumption. Geothermal piles are foundation elements used to provide structural support and thermal comfort. In countries with tropical climate, geothermal piles dissipate heat from the internal environment of the building to the foundation soil. This paper presents a numerical model of a geothermal pile inserted in a saturated sandy soil in São Paulo City, Brazil. The model was developed with ANSYS CFX version 19.2 program, a high performance CFD (Computational Fluid Dynamics) tool. Data from a Thermal Response Test (TRT) carried out for 10 days in the campus of São Paulo University was used to calibrate the model. The development of the model comprised experimental data, geometry, mesh, boundary conditions and simplifying assumptions. The calibration was carried out as back-analysis of experimental data. The obtained numerical results are considerably close to the experimental results, showing that the model is consistent. The validated model will be used to study the influence of geotechnical, hydraulic, thermal, and geometrical parameters on heat transfer, involving water, pipes, concrete and soil.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.