Dynamically distributed district heating for an existing system

Miika Rämä, Esa Pursiheimo, Dennis Sundell and Rinat Abdurafikov

Renewable and Sustainable Energy Reviews, 2024, vol. 189, issue PA

Abstract: The study in hand introduces the concept of dynamically distributed district heating. The concept addresses the challenges related to transforming an existing 3rd generation district heating system into a 4th generation system, one area at a time. It enables a cost-efficient option for introducing low-temperature distribution and new distributed heat supply while preserving the advantages of an efficient, more centralised system. The concept includes new large-scale heat storage capacity in areas on the outskirts of the network or within otherwise suitable locations, charged during summer when low-cost heat is commonly available. These areas also have new distributed heat supply. The areas are run in an island-mode during the heating season, i.e. disconnected from the main system. The study presents a preliminary analysis of the concept using Helsinki district heating system as a case study based on open data on district heating demand, building stock data and optimisation modelling of the district heating system for assessing the heat supply costs.

Keywords: District heating; Distributed heat supply; Seasonal storage; Low-temperature distribution (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.rser.2023.113947

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