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Metal Oxide Reduction Using a Solar-Driven Vacuum Thermogravimeter

Neises-von Puttkamer, Martina and Takacs, Michael and Haueter, Philipp and Maier, Markus and Steinfeld, Aldo (2013) Metal Oxide Reduction Using a Solar-Driven Vacuum Thermogravimeter. In: Proceedings of the 7th International Conference on Energy Sustainability and Fuel Cell Science. ASME. 7th International Conference on Energy Sustainability and Fuel Cell Science, 14.-19. Jul. 2013, Minneapolis, MN, USA.

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Official URL: http://www.asmeconferences.org/ESFuelCell2013/

Abstract

We present a kinetic study performed in a solar-driven vacuum thermogravimeter (solar-TG), in which solid reactants are directly exposed to high-flux irradiation while their weight change is continuously monitored. The system allows testing under a total vacuum pressure as low as 10 mbar. With this arrangement, the rate of thermochemical reactions can be examined under the same radiative heat transfer characteristics and heating rates typical of solar reactors. The solar-TG System is used to investigate metal oxides redox cycles for Splitting H2O and CO2 and for high-temperature heat storage. Operation of the metal oxide reduction under vacuum pressures is of special interest because it eliminates the need for purge gas, thus simplifying the process and avoiding energy penalties associated with inert gas Recycling.

Item URL in elib:https://elib.dlr.de/85137/
Document Type:Conference or Workshop Item (Speech)
Title:Metal Oxide Reduction Using a Solar-Driven Vacuum Thermogravimeter
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Neises-von Puttkamer, Martinamartina.neises (at) dlr.deUNSPECIFIED
Takacs, MichaelETH ZürichUNSPECIFIED
Haueter, PhilippETH ZürichUNSPECIFIED
Maier, MarkusETH ZürichUNSPECIFIED
Steinfeld, AldoETH ZürichUNSPECIFIED
Date:15 July 2013
Journal or Publication Title:Proceedings of the 7th International Conference on Energy Sustainability and Fuel Cell Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:ASME
Status:Published
Keywords:Thermochemical cycles, vacuum, solar reactor
Event Title:7th International Conference on Energy Sustainability and Fuel Cell Science
Event Location:Minneapolis, MN, USA
Event Type:international Conference
Event Dates:14.-19. Jul. 2013
Organizer:American Society of Mechanical Engineers
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Concentrating Solar Systems (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Solare Verfahrenstechnik (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Solar Research > Solare Verfahrenstechnik
Deposited By: Sattler, Prof. Dr. Christian
Deposited On:15 Nov 2013 11:32
Last Modified:08 May 2014 23:29

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