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

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2021-01-25
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en
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EUROPEAN PHYSICAL JOURNAL PLUS, Volume 136, issue 1
Abstract
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.
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Hirvijoki , E , Pfefferlé , D & Lingam , M 2021 , ' Longevity and power density of intermediate-to-deep geothermal wells in district heating applications ' , EUROPEAN PHYSICAL JOURNAL PLUS , vol. 136 , no. 1 , 137 . https://doi.org/10.1140/epjp/s13360-021-01094-8