Transient Thermal Cooling of Heat-Generating Blocks with Nano-Encapsulated Phase Change Materials

Transient Thermal Cooling of Heat-Generating Blocks with Nano-Encapsulated Phase Change Materials | 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 Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed.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. 24 January 2025 V1 Latest version Share on Transient Thermal Cooling of Heat-Generating Blocks with Nano-Encapsulated Phase Change Materials Authors : H. Elouizi , Lahcen El Moutaouakil 0000-0001-5145-5767 [email protected] , and Mohammed Boukendil Authors Info & Affiliations https://doi.org/10.22541/au.173772011.11193677/v1 286 views 130 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Optimizing thermal management in electronic components is a critical challenge to ensure reliability and performance in modern technologies. This study investigates an innovative cooling system that integrates Nano-Encapsulated Phase Change Materials (NEPCM) with coupled convection-radiation mechanisms, aiming to address these challenges. The system analyzed consists of a partitioned cavity containing three circular blocks that generate heat varying over time and between blocks, attached to a conductive plate. This plate divides the cavity into two distinct regions: an open section cooled by natural convection and surface radiation, and a porous closed section filled with a combination of NEPCM and a liquid host fluid. The host fluid, water, is enhanced with nanoparticles to improve the thermal performance of the system. Numerical modeling, conducted using the Galerkin finite element method, evaluates the cooling efficiency across a range of parameters, including melting temperature ( 300 K ≤ T f ≤ 315 K ), Darcy number ( 10 - 5 ≤ Da ≤ 10 - 2 ), emissivity ( 0 . 1 ≤ ɛ ≤ 0 . 9 ), Stefan number ( 0 . 4 ≤ Ste ≤ 1 ), cavity inclination angle (-90° ≤ α ≤ 90°), nanoparticle volume fraction ( 1 % ≤ φ ≤ 6 % ), as well as the thickness and displacement of the separation plate ( 0 . 04 cm ≤ e ≤ 0 . 24 cm ; 2 . 7 cm ≤ d ≤ 3 . 6 cm ) . The findings reveal that the maximum temperatures of the blocks can vary significantly, with reductions exceeding 7% when key parameters, such as Darcy number and cavity inclination angle, are optimized. In contrast, other parameters have a more limited influence, resulting in variations not exceeding 2%. These insights highlight the importance of selecting appropriate parameters for enhanced thermal management in electronic applications. Supplementary Material File (paper.docx) Download 3.31 MB Information & Authors Information Version history V1 Version 1 24 January 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords convection energy efficiency finite element method mathematical modeling melting radiation Authors Affiliations H. Elouizi Universite Cadi Ayyad Faculte des Sciences Semlalia View all articles by this author Lahcen El Moutaouakil 0000-0001-5145-5767 [email protected] Universite Cadi Ayyad Faculte des Sciences Semlalia View all articles by this author Mohammed Boukendil Universite Cadi Ayyad Faculte des Sciences Semlalia View all articles by this author Metrics & Citations Metrics Article Usage 286 views 130 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation H. Elouizi, Lahcen El Moutaouakil, Mohammed Boukendil. Transient Thermal Cooling of Heat-Generating Blocks with Nano-Encapsulated Phase Change Materials. Authorea . 24 January 2025. DOI: https://doi.org/10.22541/au.173772011.11193677/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.173772011.11193677/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:'a0003fa8efce1640',t:'MTc3OTQ5OTMzNw=='};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())}}}})();