CASE STUDY ON THE NUMERICAL MODELLING OF A CFA ENERGY PILE
CASE STUDY ON THE NUMERICAL MODELLING OF A CFA ENERGY PILE
Rapid growth of the world population necessitates the exploration of alternative and clean energy sources to meet growing demand. As a renewable energy source, geothermal energy ranks only second to solar energy. Energy geostructures makes it possible to extract and utilize ground heat. Therefore, utilization of energy piles as shallow geothermal heat exchangers between soil and structure is gaining momentum in the last decade to provide hot water and climate needs of the buildings. Within an energy pile, heat exchanger pipes are embedded, facilitating the transfer of temperature-affected fluid from the ground heat to a heat pump and subsequently to the building. Consequently, this process involves a complex heat interaction among the ground, pipes, and pile, necessitating thermo-hydro-mechanically coupled analyses. In this study, a field scale energy pile test conducted in Houston, Texas was numerically modelled, and it was validated in terms of computed thermally induced stress and temperature evolved along the pile as compared to the measured values at the site.
Ugur Can Erginag; S. Polat; M. Guner; Melis Sutman; Ozer Cinicioglu
28th European Young Geotechnical Engineers Conference (EYGEC2024)
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