elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Simulating the Dehydration Reaction of Calcium Hydroxide in an Indirect-Type Fixed Bed Reactor

Mensing, Max (2021) Simulating the Dehydration Reaction of Calcium Hydroxide in an Indirect-Type Fixed Bed Reactor. Masterarbeit, University of Twente.

[img] PDF - Nur DLR-intern zugänglich
4MB

Kurzfassung

Thermochemical energy storage can be an important means to facilitate integration of renewable sources into energy supply networks. To seasonally store excess energy for use in times of high demand (e.g. winter), the reversible dehydration reaction of Ca(OH)2 appears to be a promising material for storing energy indefinitely and releasing energy as heat on demand. In this thesis, the dehydration reaction of Ca(OH)2 is investigated comparing experimental results and simulations in an indirectly heated fixed bed reactor. Dehydration by temperature increase and dehydration by pressure reduction are investigated using a 2D rotational symmetric reactor model developed in COMSOL. Additionally, a techno­economic feasibility study is performed to investigate the technology's potential in domestic applications. Results show that qualitatively the simulations can depict processes inside the reactor relatively well but quantitatively there are still major discrepancies observable. For sensible heating, the reactor model provides good results, but more work needs to be done in investigating reaction kinetics and changes in the reactor bed as result of the reaction. Considering economics, results show that for a single­family house, a Ca(OH)2 energy storage system coupled to PV panels on the roof can supply all required energy for one year to a household under favourable conditions.

elib-URL des Eintrags:https://elib.dlr.de/144086/
Dokumentart:Hochschulschrift (Masterarbeit)
Titel:Simulating the Dehydration Reaction of Calcium Hydroxide in an Indirect-Type Fixed Bed Reactor
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Mensing, MaxNICHT SPEZIFIZIERTNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2021
Referierte Publikation:Nein
Open Access:Nein
Seitenanzahl:101
Status:veröffentlicht
Stichwörter:simulation; calcium hydroxide / oxide; indirect fixed bed reactor; energy storage
Institution:University of Twente
Abteilung:Faculty of Engineering Technology
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 - Thermochemische Prozesse
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Technische Thermodynamik > Thermische Prozesstechnik
Hinterlegt von: Risthaus, Kai
Hinterlegt am:08 Okt 2021 11:41
Letzte Änderung:12 Okt 2021 11:03

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.