Solar Thermochemical Hydrogen Production via Terbium Oxide Based Redox Reactions
Joint Authors
Bhosale, Rahul
Kumar, Anand
AlMomani, Fares
Source
International Journal of Photoenergy
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-01-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The computational thermodynamic modeling of the terbium oxide based two-step solar thermochemical water splitting (Tb-WS) cycle is reported.
The 1st step of the Tb-WS cycle involves thermal reduction of TbO2 into Tb and O2, whereas the 2nd step corresponds to the production of H2 through Tb oxidation by water splitting reaction.
Equilibrium compositions associated with the thermal reduction and water splitting steps were determined via HSC simulations.
Influence of oxygen partial pressure in the inert gas on thermal reduction of TbO2 and effect of water splitting temperature (TL) on Gibbs free energy related to the H2 production step were examined in detail.
The cycle (ηcycle) and solar-to-fuel energy conversion (ηsolar-to-fuel) efficiency of the Tb-WS cycle were determined by performing the second-law thermodynamic analysis.
Results obtained indicate that ηcycle and ηsolar-to-fuel increase with the decrease in oxygen partial pressure in the inert flushing gas and thermal reduction temperature (TH).
It was also realized that the recuperation of the heat released by the water splitting reactor and quench unit further enhances the solar reactor efficiency.
At TH=2280 K, by applying 60% heat recuperation, maximum ηcycle of 39.0% and ηsolar-to-fuel of 47.1% for the Tb-WS cycle can be attained.
American Psychological Association (APA)
Bhosale, Rahul& Kumar, Anand& AlMomani, Fares. 2016. Solar Thermochemical Hydrogen Production via Terbium Oxide Based Redox Reactions. International Journal of Photoenergy،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1106558
Modern Language Association (MLA)
Bhosale, Rahul…[et al.]. Solar Thermochemical Hydrogen Production via Terbium Oxide Based Redox Reactions. International Journal of Photoenergy No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1106558
American Medical Association (AMA)
Bhosale, Rahul& Kumar, Anand& AlMomani, Fares. Solar Thermochemical Hydrogen Production via Terbium Oxide Based Redox Reactions. International Journal of Photoenergy. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1106558
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1106558