Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water
<p dir="ltr">Thermodynamic equilibrium, as well as efficiency analysis of the Cr<sub>2</sub>O<sub>3</sub>/Cr water splitting (Cr-WS) cycle, was conducted in this study. The thermodynamic properties required for the computations were obtained from an HSC Chemis...
Saved in:
| Main Author: | |
|---|---|
| Published: |
2020
|
| Subjects: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1864513557899509760 |
|---|---|
| author | Rahul R. Bhosale (6467102) |
| author_facet | Rahul R. Bhosale (6467102) |
| author_role | author |
| dc.creator.none.fl_str_mv | Rahul R. Bhosale (6467102) |
| dc.date.none.fl_str_mv | 2020-10-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.fuel.2020.118160 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Application_of_chromium_oxide-based_redox_reactions_for_hydrogen_production_via_solar_thermochemical_splitting_of_water/24270436 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Chemical sciences Organic chemistry Engineering Chemical engineering Fluid mechanics and thermal engineering Cr2O3 Hydrogen Water splitting Thermodynamics Thermal reduction Solar-to-fuel energy conversion efficiency |
| dc.title.none.fl_str_mv | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Thermodynamic equilibrium, as well as efficiency analysis of the Cr<sub>2</sub>O<sub>3</sub>/Cr water splitting (Cr-WS) cycle, was conducted in this study. The thermodynamic properties required for the computations were obtained from an HSC Chemistry 9.9 software. An increase in thermal reduction (TR) temperature (T<sub>H</sub>) from 1800 K to 2230 K was responsible for the rise in the percentage TR of Cr<sub>2</sub>O<sub>3</sub> (Tr-Cr) from 0% to 100%. The equilibrium analysis additionally indicates that the re-oxidation of Cr into Cr<sub>2</sub>O<sub>3 </sub>via WS reaction is feasible at any temperature from 300 to 3000 K (we have selected 1300 K for this study). The efficiency analysis indicates that the Q<sub>solar-reactor-Cr-WS</sub> and Q<sub>solar-heater-Cr-WS</sub> were enhanced by 3636.8 kW and 260.0 kW due to the increment in the TH from 1800 K to 2230 K. The increase in the Q<sub>solar-reactor-Cr-WS</sub> and Q<sub>solar-heater-Cr-WS</sub> resulted into a rise in the Q<sub>solar-cycle-Cr-WS</sub> by 3896.8 kW. The<sub>ηsolar to fuel Cr WS</sub>increased from 9.5% to 26.4% when the T<sub>H</sub> was augmented from 1800 K to 2000 K. A further rise in the T<sub>H</sub> from 2000 K to 2230 K resulted in a reduction in the<sub>ηsolar to fuel Cr WS</sub> from 26.4% to 21.3%. After employing the 100% heat recuperation, the<sub>ηsolar to fuel HR Cr WS of the Cr-WS</sub><sub> </sub> cycle was improved up to 48.3% at T<sub>H</sub> = 2000 K.</p><h2>Other Information</h2><p dir="ltr">Published in: Fuel<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.fuel.2020.118160" target="_blank">https://dx.doi.org/10.1016/j.fuel.2020.118160</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_876b1946eca60b89eb04622697470eff |
| identifier_str_mv | 10.1016/j.fuel.2020.118160 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24270436 |
| publishDate | 2020 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of waterRahul R. Bhosale (6467102)Chemical sciencesOrganic chemistryEngineeringChemical engineeringFluid mechanics and thermal engineeringCr2O3HydrogenWater splittingThermodynamicsThermal reductionSolar-to-fuel energy conversion efficiency<p dir="ltr">Thermodynamic equilibrium, as well as efficiency analysis of the Cr<sub>2</sub>O<sub>3</sub>/Cr water splitting (Cr-WS) cycle, was conducted in this study. The thermodynamic properties required for the computations were obtained from an HSC Chemistry 9.9 software. An increase in thermal reduction (TR) temperature (T<sub>H</sub>) from 1800 K to 2230 K was responsible for the rise in the percentage TR of Cr<sub>2</sub>O<sub>3</sub> (Tr-Cr) from 0% to 100%. The equilibrium analysis additionally indicates that the re-oxidation of Cr into Cr<sub>2</sub>O<sub>3 </sub>via WS reaction is feasible at any temperature from 300 to 3000 K (we have selected 1300 K for this study). The efficiency analysis indicates that the Q<sub>solar-reactor-Cr-WS</sub> and Q<sub>solar-heater-Cr-WS</sub> were enhanced by 3636.8 kW and 260.0 kW due to the increment in the TH from 1800 K to 2230 K. The increase in the Q<sub>solar-reactor-Cr-WS</sub> and Q<sub>solar-heater-Cr-WS</sub> resulted into a rise in the Q<sub>solar-cycle-Cr-WS</sub> by 3896.8 kW. The<sub>ηsolar to fuel Cr WS</sub>increased from 9.5% to 26.4% when the T<sub>H</sub> was augmented from 1800 K to 2000 K. A further rise in the T<sub>H</sub> from 2000 K to 2230 K resulted in a reduction in the<sub>ηsolar to fuel Cr WS</sub> from 26.4% to 21.3%. After employing the 100% heat recuperation, the<sub>ηsolar to fuel HR Cr WS of the Cr-WS</sub><sub> </sub> cycle was improved up to 48.3% at T<sub>H</sub> = 2000 K.</p><h2>Other Information</h2><p dir="ltr">Published in: Fuel<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.fuel.2020.118160" target="_blank">https://dx.doi.org/10.1016/j.fuel.2020.118160</a></p>2020-10-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.fuel.2020.118160https://figshare.com/articles/journal_contribution/Application_of_chromium_oxide-based_redox_reactions_for_hydrogen_production_via_solar_thermochemical_splitting_of_water/24270436CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/242704362020-10-01T00:00:00Z |
| spellingShingle | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water Rahul R. Bhosale (6467102) Chemical sciences Organic chemistry Engineering Chemical engineering Fluid mechanics and thermal engineering Cr2O3 Hydrogen Water splitting Thermodynamics Thermal reduction Solar-to-fuel energy conversion efficiency |
| status_str | publishedVersion |
| title | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water |
| title_full | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water |
| title_fullStr | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water |
| title_full_unstemmed | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water |
| title_short | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water |
| title_sort | Application of chromium oxide-based redox reactions for hydrogen production via solar thermochemical splitting of water |
| topic | Chemical sciences Organic chemistry Engineering Chemical engineering Fluid mechanics and thermal engineering Cr2O3 Hydrogen Water splitting Thermodynamics Thermal reduction Solar-to-fuel energy conversion efficiency |