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Numerical analysis of a combined heat pump ice energy storage system without solar benefit : Analytical validation and comparison with long term experimental data over one year

Titelangaben

Griesbach, Marco ; König-Haagen, Andreas ; Brüggemann, Dieter:
Numerical analysis of a combined heat pump ice energy storage system without solar benefit : Analytical validation and comparison with long term experimental data over one year.
In: Applied Thermal Engineering. Bd. 213 (2022) . - 118696.
ISSN 1359-4311
DOI: https://doi.org/10.1016/j.applthermaleng.2022.118696

Abstract

Ice energy storage systems, as interface between the time-shifted occurring heat and cold demand of nonresidential buildings, are a promising technology to use waste heat arising inside buildings. Several studies examine the suitability for residential buildings in combination with solar thermal power. However, investigations of ice energy storage systems for nonresidential buildings to use waste heat instead of solar benefit are missing. In order to design, evaluate and optimize such systems, analysis of its behavior by means of variational calculations are essential, which requires an adaptable model that is thoroughly validated. Therefore, for the first time, a detailed numerical model of such a system is developed, validated and compared to long term measured data of a 500 m3 setup. The storage at the University of Bayreuth acts as heat source for a heat pump and is regenerated by the cooling water network delivering the waste heat, which can also be used as a direct source for the heat pump. The Stefan problem is utilized to conduct the validation and, moreover, a comparison with 13 months of measured data shows good agreement. In the future, the model will be used to identify favorable procedures for implementing, optimizing and controlling ice energy storage systems in nonresidential buildings with waste heat recovery capability.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Technische Thermodynamik und Transportprozesse
Profilfelder > Emerging Fields > Energieforschung und Energietechnologie
Forschungseinrichtungen > Forschungsstellen > Zentrum für Energietechnik - ZET
Forschungseinrichtungen > Institute in Verbindung mit der Universität > TechnologieAllianzOberfranken (TAO)
Graduierteneinrichtungen > TAO-Graduiertenkolleg Energieautarke Gebäude
Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften
Profilfelder
Profilfelder > Emerging Fields
Forschungseinrichtungen
Forschungseinrichtungen > Forschungsstellen
Forschungseinrichtungen > Institute in Verbindung mit der Universität
Graduierteneinrichtungen
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 03 Jun 2022 10:08
Letzte Änderung: 16 Aug 2023 06:50
URI: https://eref.uni-bayreuth.de/id/eprint/69937