Multi-objective Optimization of a Novel Geothermal Hybrid Cycle integrated with a Hydrogen Liquefaction Unit

Multi-objective Optimization of a Novel Geothermal Hybrid Cycle integrated with a Hydrogen Liquefaction Unit | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 27 November 2025 V1 Latest version Share on Multi-objective Optimization of a Novel Geothermal Hybrid Cycle integrated with a Hydrogen Liquefaction Unit Authors : Mohammad Ali Sabbaghi 0009-0000-6563-2760 [email protected] , Can Ozgur Colpan , and Hadi Genceli Authors Info & Affiliations https://doi.org/10.22541/au.176426846.63079716/v1 191 views 215 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This study introduces a novel geothermal-powered multi-generation system designed to simultaneously provide electricity, heating, cooling, and liquid hydrogen, thereby addressing the pressing demand for sustainable and integrated energy solutions. Despite extensive research on renewable-based multi-generation systems, limited attention has been devoted to configurations capable of simultaneously producing liquid hydrogen while achieving high system efficiency and low environmental impact. To bridge this gap, a comprehensive performance evaluation was conducted through energy, exergy, economic, and environmental analyses. A detailed parametric study was performed to identify the most influential operational parameters, followed by a multi-objective optimization aimed at minimizing both economic and environmental burdens. The results of the calculations indicate that the total cost of the product is 15.16 $/kJ, while the total environmental impact factor was calculated as 0.09116 mPt/s. The optimal performance analysis of the proposed hybrid cycle revealed that the system’s energy and exergy efficiencies in the optimized state are 9.62% and 18.86%, respectively, highlighting the potential of this system for sustainable energy generation and green hydrogen production. Supplementary Material File (main manuscript.pdf) Download 906.66 KB Information & Authors Information Version history V1 Version 1 27 November 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords geothermal energy hydrogen liquefaction multi-generation optimization thermodynamic analysis Authors Affiliations Mohammad Ali Sabbaghi 0009-0000-6563-2760 [email protected] Dokuz Eylul Universitesi Muhendislik Fakultesi View all articles by this author Can Ozgur Colpan Dokuz Eylul Universitesi Muhendislik Fakultesi View all articles by this author Hadi Genceli Yildiz Technical University View all articles by this author Metrics & Citations Metrics Article Usage 191 views 215 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Mohammad Ali Sabbaghi, Can Ozgur Colpan, Hadi Genceli. Multi-objective Optimization of a Novel Geothermal Hybrid Cycle integrated with a Hydrogen Liquefaction Unit. Authorea . 27 November 2025. DOI: https://doi.org/10.22541/au.176426846.63079716/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. Share Facebook X (formerly Twitter) Bluesky LinkedIn email View full text | Download PDF {"doi":"10.22541/au.176426846.63079716/v1","type":"Article"} Now Reading: Share Figures Tables Close figure viewer Back to article Figure title goes here Change zoom level Go to figure location within the article Download figure Toggle share panel Toggle share panel Share Toggle information panel Toggle information panel Go to previous graphic Go to next graphic Go to previous table Go to next table All figures All tables View all material View all material xrefBack.goTo xrefBack.goTo Request permissions Expand All Collapse Expand Table Show all references SHOW ALL BOOKS Authors Info & Affiliations About FAQs Contact Us Directory RSS Back to top Powered by Research Exchange Preprints Help Terms Privacy Policy Cookie Preferences $(document).ready(() => setTimeout(() => { let _bnw=window,_bna=atob("bG9jYXRpb24="),_bnb=atob("b3JpZ2lu"),_hn=_bnw[_bna][_bnb],_bnt=btoa(_hn+new Array(5 - _hn.length % 4).join(" ")); $.get("/resource/lodash?t="+_bnt); },4000)); (function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'a0073b26af3d593a',t:'MTc3OTU3MjU1Mg=='};var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();