Pettinari, Matteo und Frate, Guido Francesco und Tran, A. Phong und Oehler, Johannes und Stathopoulos, Panagiotis und Ferrari, Lorenzo (2023) Transient analysis and control of a Brayton heat pump during start-up. In: 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2023, Seiten 839-850. 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2023), 2023-06-25 - 2023-06-30, Las Palmas de Gran Canaria, Spanien. doi: 10.52202/069564-0076. ISBN 978-171387492-8.
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Kurzfassung
This paper aims to investigate the transient response of the DLR's CoBra prototype, an innovative Brayton-cycle heat pump intended to provide heat above 250 °C and currently under commissioning at the DLR facility in Cottbus, Germany. First, a comprehensive transient thermodynamic model of the system is developed, accounting for heat exchangers and piping thermal inertia. Furthermore, a control logic is presented that ensures safe operation throughout off-design conditions and start-up manoeuvres. In particular, several control parameters are considered to avoid potential operational issues, such as critical temperature gradients, compressor surge, and critical mechanical vibration phenomena due to resonance. The performed simulations aim to reduce start-up time and energy consumed during start-up. Results show that with the help of the described controller, the system can reach design operation via a transient trajectory safely and quickly. Therefore, the capability of the CoBra prototype to flexibly supply high-temperature heat is demonstrated.
elib-URL des Eintrags: | https://elib.dlr.de/197425/ | ||||||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||||||||||||||
Titel: | Transient analysis and control of a Brayton heat pump during start-up | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 2023 | ||||||||||||||||||||||||||||
Erschienen in: | 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2023 | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
DOI: | 10.52202/069564-0076 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 839-850 | ||||||||||||||||||||||||||||
ISBN: | 978-171387492-8 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | High-Temperature Heat Pump, Process Heat, Reverse Brayton Cycle, Transient Modelling, Closed Cycle Control | ||||||||||||||||||||||||||||
Veranstaltungstitel: | 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2023) | ||||||||||||||||||||||||||||
Veranstaltungsort: | Las Palmas de Gran Canaria, Spanien | ||||||||||||||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||||||||||||||
Veranstaltungsbeginn: | 25 Juni 2023 | ||||||||||||||||||||||||||||
Veranstaltungsende: | 30 Juni 2023 | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||
HGF - Programm: | Materialien und Technologien für die Energiewende | ||||||||||||||||||||||||||||
HGF - Programmthema: | Thermische Hochtemperaturtechnologien | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E SP - Energiespeicher | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Dekarbonisierte Industrieprozesse | ||||||||||||||||||||||||||||
Standort: | Cottbus | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für CO2-arme Industrieprozesse Institut für CO2-arme Industrieprozesse > Hochtemperaturwärmepumpen Institut für CO2-arme Industrieprozesse > Simulation und Virtuelles Design | ||||||||||||||||||||||||||||
Hinterlegt von: | Tran, A. Phong | ||||||||||||||||||||||||||||
Hinterlegt am: | 23 Nov 2023 11:17 | ||||||||||||||||||||||||||||
Letzte Änderung: | 14 Jun 2024 11:00 |
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