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SUMMARY:Finite Element Modelling of Thermal Piles and Walls - Yi Rui\, CUE
 D
DTSTART:20141113T170000Z
DTEND:20141113T180000Z
UID:TALK54246@talks.cam.ac.uk
CONTACT:Anama Lowday
DESCRIPTION:Ground source heat pump (GSHP) systems\, like thermal piles an
 d walls\, are considered to be an efficient solution for tapping geotherma
 l energy. Despite the vast range of potential applications\, current GSHP 
 designs have very limited input from a geotechnical aspect. The main reaso
 n for this is that there are still many concerns about the thermal and geo
 mechanical behavior of a ground heat exchanger (GHE) and the ground. In or
 der to ensure the safety and durability of GSHP systems and infrastructure
 \, it is necessary to find a valid method to investigate relevant geotherm
 al and geomechanical problems. In this research\, an implicit and in-house
  finite element method (FEM) code is developed\, which can simulate thermo
 -hydro-mechanical(THM) coupling processes in geothermal problems. Addition
 ally\, a new thermo-elasto-plastic constitutive model is proposed to simul
 ate the thermo-mechanical behavior of soil and the model is implemented in
  the code. The performance of the developed code is evaluated at three sit
 es in London. \nThe main aim is to investigate both short and long-term pe
 rformance of:\n(i) the combined open and closed loop GSHP system installed
  in One New Change retail centre\, (ii) a thermal wall installed at a Cros
 srail station and (iii) a thermal pile loading testing at the Lambeth Coll
 ege.\n
LOCATION: Cambridge University Engineering Department\, Lecture Room 6
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