A case study of the sizing and optimisation of an energy pile foundation (Rosborg, Denmark)

Maria Alberdi Pagola, Søren Erbs Poulsen, Rasmus Lund Jensen, Søren Madsen

Publikation: Bidrag til tidsskriftTidsskriftsartikelForskningpeer review

Abstract

This paper applies previously validated multiple pile g-functions, for estimating operational average fluid temperatures in an actual energy pile foundation in Rosborg, Denmark. We find that the multiple pile g-functions yield fluid temperatures similar to what is observed, at minimal computational cost. The temperature model is then utilised in an optimisation algorithm that yields the minimum number of energy piles required by simultaneously maximising the pile spacing and taking into consideration the thermal load of the building. The optimisation shows that the thermal needs of the building can be fully supplied by 148 rearranged energy piles, instead of the current 219. The optimisation tool is also applied to a full-factorial design sweep which shows a large sensitivity of the number of energy piles on the thermal conductivity of the ground.
OriginalsprogEngelsk
TidsskriftRenewable Energy
Vol/bind147
Udgave nummer2
Sider (fra-til)2724-2735
Antal sider12
ISSN0960-1481
DOI
StatusUdgivet - 2020

Emneord

  • Byggeri, miljø og energi

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