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AuthorBhosale, Rahul R.
AuthorSutar, Parag
AuthorKumar, Anand
AuthorAlMomani, Fares
AuthorAli, Moustafa Hussein
AuthorGhosh, Ujjal
AuthorAlMuhtaseb, Shaheen
AuthorKhraisheh , Majeda
Available date2021-09-01T10:03:36Z
Publication Date2016
Publication NameJournal of Renewable and Sustainable Energy
ResourceScopus
URIhttp://dx.doi.org/10.1063/1.4953166
URIhttp://hdl.handle.net/10576/22524
AbstractThe erbium oxide based water splitting (Eb-WS) cycle was thermodynamically studied by using the HSC Chemistry software and databases. The first step of the Eb-WS cycle involves thermal reduction of Er2 O3, whereas the second step corresponds to the production of H2 via water splitting reaction. Equilibrium compositions associated with the thermal reduction and water splitting steps were determined by performing HSC simulations. Influence of partial pressure of oxygen (PO2) in the inert purge gas on thermal reduction temperature (TH) and equilibrium compositions associated with the solar thermal dissociation of Er2 O3 was identified. Furthermore, energy and exergy analysis of the Eb-WS cycle was carried out to estimate the cycle (?cycle) and solar-to-fuel conversion efficiency (?solar-to-fuel). Simulation results indicate that the ?cycle and ?solar-to-fuel of Eb-WS cycle increase with the decrease in TH. Also, the ? c y c l e and ?solar-to-fuel can be increased further via the recuperation of the heat released by the water splitting reactor and the quench unit. The ?solar-to-fuel of Eb-WS cycle was observed to be equivalent to that of ceria cycle. 2016 Author(s).
SponsorThis publication was made possible by the NPRP Grant (NPRP8-370-2-154) and UREP Grant (UREP18-146-2-060) from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of author(s). The authors also gratefully acknowledge the financial support provided by the Qatar University Internal Grants (QUUG-CENG-CHE-13/14-4 and QUUG-CENG-CHE-14\15-10).
Languageen
PublisherAmerican Institute of Physics Inc.
SubjectCerium oxide
Dissociation
Erbium compounds
Fuels
Solar power generation
Energy and exergy analysis
Equilibrium compositions
Fuel conversion efficiencies
Partial pressure of oxygen
Solar Hydrogen Production
Thermal reduction
Thermochemical water-splitting cycle
Water splitting reactions
Hydrogen production
TitleSolar hydrogen production via erbium oxide based thermochemical water splitting cycle
TypeArticle
Issue Number3
Volume Number8
dc.accessType Abstract Only


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