Longevity and power density of intermediate-to-deep geothermal wells in district heating applications

Eero Hirvijoki*, David Pfefferlé, Manasvi Lingam

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

5 Sitaatiot (Scopus)
147 Lataukset (Pure)

Abstrakti

This paper assesses the potential of intermediate-to-deep geothermal wells for district heating purposes in non-hot spot regions as a means for replacing carbon-intensive heat sources. In analysing the problem of heat transfer from the bedrock to a flowing coolant in the well, we perform parameter scans to assess the longevity and power density of different-size wells and derive analytical estimates to explain salient characteristics of the well behaviour. The results are then utilized to illustrate how intermediate-to-deep geothermal wells would compare with the requirements of typical large-scale district heating systems, by using the city of Helsinki in Finland as an example.

AlkuperäiskieliEnglanti
Artikkeli137
Sivumäärä15
JulkaisuEuropean Physical Journal Plus
Vuosikerta136
Numero1
DOI - pysyväislinkit
TilaJulkaistu - 25 tammik. 2021
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

This research was funded through the Academy of Finland Grant No. 315278. Any subjective views or opinions expressed herein do not necessarily represent the views of the Academy of Finland. EH wishes to thank Professors Sanna Syri and Kai Siren for valuable comments and feedback.

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