Investigation of hydrogen production by sulfur‐iodine thermochemical water splitting cycle using renewable energy source

International Journal of Energy ResearchVolume 45, Issue 10 p. 14845-14869 RESEARCH ARTICLE Investigation of hydrogen production by sulfur-iodine thermochemical water splitting cycle using renewable energy source Mehdi Mehrpooya, Corresponding Author mehrpoya@ut.ac.ir orcid.org/0000-0001-9274-5824 Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran Correspondence Mehdi Mehrpooya, Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran. Email: mehrpoya@ut.ac.irSearch for more papers by this authorBahram Ghorbani, Faculty of Engineering Modern Technologies, Amol University of Special Modern Technologies, Amol, IranSearch for more papers by this authorArman Ekrataleshian, Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, IranSearch for more papers by this authorSeyed Ali Mousavi, Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, IranSearch for more papers by this author Mehdi Mehrpooya, Corresponding Author mehrpoya@ut.ac.ir orcid.org/0000-0001-9274-5824 Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran Correspondence Mehdi Mehrpooya, Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran. Email: mehrpoya@ut.ac.irSearch for more papers by this authorBahram Ghorbani, Faculty of Engineering Modern Technologies, Amol University of Special Modern Technologies, Amol, IranSearch for more papers by this authorArman Ekrataleshian, Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, IranSearch for more papers by this authorSeyed Ali Mousavi, Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, IranSearch for more papers by this author First published: 14 April 2021 https://doi.org/10.1002/er.6759Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinked InRedditWechat Summary In this study, a novel integrated structure for generation of the oxygen, hydrogen, power, and hot water by employing thermochemical reactors and solar dish collectors is proposed. The presented process including solar dish collectors, sulfur-iodine thermochemical cycle, and Organic Rankine Cycle. In this configuration, for 5854 kmol/h of inlet water, 2236 kmol/h of oxygen, and 4432 kmol/h of hydrogen are produced. This system can provide 22 666 kW of power that 22 026 kW is utilized in the sulfur-iodine reaction. So, the net electrical power is found to be 640 kW. A general exergy analysis is carried out on the whole structure and equipment to find its exergy losses and improvement potential to enhance the exergy efficiency of the system. The total exergy efficiency of the process is calculated 56.33% and its exergy destruction is obtained 382 301.31 kW. Heat exchangers and solar collectors have the highest values of destructed exergy, which about 69% of destructed exergy is related to them. These devices have a strong potential for enhancement. The results showed that component P1 (pump) has the lowest exergy efficiency that is 15.58%, while its exergy destruction is not the greatest. Therefore, for having a better examination of this structure, both exergy efficiency and exergy destruction parameters should be evaluated simultaneously. Moreover, a sensitivity analysis is applied to survey the performance of some performance indicators vs different design parameters. It is concluded that by an increase in generated heat by solar collectors, exergy efficiency, energy efficiency, oxygen, and hydrogen production faces increment. Volume45, Issue10August 2021Pages 14845-14869 RelatedInformation