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

Eero Hirvijoki*, David Pfefferlé, Manasvi Lingam

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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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.

Original languageEnglish
Article number137
Number of pages15
JournalEUROPEAN PHYSICAL JOURNAL PLUS
Volume136
Issue number1
DOIs
Publication statusPublished - 25 Jan 2021
MoE publication typeA1 Journal article-refereed

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