Articles | Volume 4-osr8
https://doi.org/10.5194/sp-4-osr8-9-2024
https://doi.org/10.5194/sp-4-osr8-9-2024
30 Sep 2024
 | OSR8 | Chapter 3.1
 | 30 Sep 2024 | OSR8 | Chapter 3.1

Oceanographic preconditions for planning seawater heat pumps in the Baltic Sea – an example from the Tallinn Bay, Gulf of Finland

Jüri Elken, Ilja Maljutenko, Priidik Lagemaa, Rivo Uiboupin, and Urmas Raudsepp

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Short summary
Baltic deep water is generally warmer than surface water during winter when district heating is required. Depending on the location, depth, and oceanographic situation, bottom water of Tallinn Bay can be used as an energy source for seawater heat pumps until the end of February, covering the major time interval when heating is needed. Episodically, there are colder-water events when seawater heat extraction has to be complemented by other sources of heating energy.
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