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@ARTICLE{Johnen:1053023,
author = {Johnen, Sascha and Althaus, Philipp and Stock, Jan and
Xhonneux, André and Müller, Dirk},
title = {{D}ata-driven approach on estimating the minimum required
supply temperature for building heating systems: method
development, extended application evaluation and sensitivity
analysis},
journal = {Journal of building performance simulation},
volume = {20},
issn = {1940-1493},
address = {London [u.a.]},
publisher = {Taylor and Francis},
reportid = {FZJ-2026-01365},
pages = {1 - 15},
year = {2025},
abstract = {This paper presents a data-driven method to identify
possible heating supply temperature reductions in existing
buildings, which can improve the efficiency of heat supply
systems such as heat pumps or district heating. Traditional
analysis for supply temperature reduction is often
associated with high efforts, limiting widespread
applications. The proposed method identifies minimum
required heat curves based on historical demand data and
static information. The building demand is modelled relative
to outdoor temperatures for different clusters by time. The
demand of individual heaters is subsequently derived.
Applying the logarithmic mean temperature difference (LMTD)
approach, the minimum required supply temperatures is
calculated, creating a heat curve for each identified demand
cluster. The results obtained using this method on real
office buildings reflect time-dependent demand and achieve
temperature reductions in existing buildings. The proposed
method thus offers a simplified and scalable approach to
identifying potential supply temperature reductions in
building heating systems.},
cin = {ICE-1},
ddc = {690},
cid = {I:(DE-Juel1)ICE-1-20170217},
pnm = {1121 - Digitalization and Systems Technology for
Flexibility Solutions (POF4-112) / 1122 - Design, Operation
and Digitalization of the Future Energy Grids (POF4-112)},
pid = {G:(DE-HGF)POF4-1121 / G:(DE-HGF)POF4-1122},
typ = {PUB:(DE-HGF)16},
doi = {10.1080/19401493.2025.2493868},
url = {https://juser.fz-juelich.de/record/1053023},
}