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            <front>

                <journal-meta>
                                    <journal-id></journal-id>
            <journal-title-group>
                                                                                    <journal-title>Bitlis Eren Üniversitesi Fen Bilimleri Dergisi</journal-title>
            </journal-title-group>
                            <issn pub-type="ppub">2147-3129</issn>
                                        <issn pub-type="epub">2147-3188</issn>
                                                                                            <publisher>
                    <publisher-name>Bitlis Eren University</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.17798/bitlisfen.1518320</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Energy Generation, Conversion and Storage (Excl. Chemical and Electrical)</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Enerji Üretimi, Dönüşüm ve Depolama (Kimyasal ve Elektiksel hariç)</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                                                            <article-title>Performance Comparisons of Thermal Protection Methods Based on Thermally Enhanced Phase Change Materials</article-title>
                                                                                                    </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-5916-6334</contrib-id>
                                                                <name>
                                    <surname>Çapar</surname>
                                    <given-names>Ahmet Can</given-names>
                                </name>
                                                                    <aff>SİVAS CUMHURİYET ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0001-5053-5124</contrib-id>
                                                                <name>
                                    <surname>Temel</surname>
                                    <given-names>Ümit Nazlı</given-names>
                                </name>
                                                                    <aff>SİVAS CUMHURİYET ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20250326">
                    <day>03</day>
                    <month>26</month>
                    <year>2025</year>
                </pub-date>
                                        <volume>14</volume>
                                        <issue>1</issue>
                                        <fpage>13</fpage>
                                        <lpage>38</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20240807">
                        <day>08</day>
                        <month>07</month>
                        <year>2024</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20250305">
                        <day>03</day>
                        <month>05</month>
                        <year>2025</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2012, Bitlis Eren Üniversitesi Fen Bilimleri Dergisi</copyright-statement>
                    <copyright-year>2012</copyright-year>
                    <copyright-holder>Bitlis Eren Üniversitesi Fen Bilimleri Dergisi</copyright-holder>
                </permissions>
            
                                                                                                                        <abstract><p>This study focuses on phase change material-based passive thermal protection of electronic components that release heat for a period of time. Firstly, an investigation was carried out in terms of PCM thickness for thermal protection and it was determined that an 11 mm thickness was the appropriate PCM thickness. It was determined that the thermal conductivities in the solid phase could be improved by 35.9%, 119.2%, and 178.6%, respectively, if 1%, 3%, and 5% GNP were doped into the PCM. In the case of 1%, 3%, and 5% GNP doping, it was determined that the melting temperatures of PCM did not change, whereas the latent heat of melting decreased slightly depending on the GNP fraction. The deterioration in the latent melting heat for 5% GNP/RT-44 composite was measured as 5.4%. Then, the thermal protection performance of PCM, Fin/PCM, Nanoparticle/PCM, and Nanoparticle/Fin/PCM composites on an electronic component that releases heat for a period of time was compared in terms of maximum surface temperature and maximum surface temperature difference. The results indicated that the Nanoparticle/PCM thermal protection exhibited a performance improvement effect predominantly during sensible heat storage, whereas the Fin/PCM thermal protection demonstrated an improvement in performance during both sensible heat and latent heat storage. While all thermal protection methods were successful at 3 W heating power, only PCM thermal protection equipped with six fins (6F/PCM) was successful at 6W heating power. At 6 W heating power, maximum temperature and maximum temperature difference performances were improved by 15.3% and 45.2%, respectively, with 6F/PCM thermal protection compared to PCM thermal protection only. An increase in the GNP mass fraction above 3% has been demonstrated to have a detrimental effect on thermal protection. With 3% GNP/6F/PCM hybrid thermal protection, it was determined that the maximum temperature and maximum temperature difference performances have the potential to be improved by 22.3% and 53.4% compared to PCM thermal protection.</p></abstract>
                                                            
            
                                                                                        <kwd-group>
                                                    <kwd>PCM</kwd>
                                                    <kwd>  Thermal protection</kwd>
                                                    <kwd>  Fin</kwd>
                                                    <kwd>  Nanoparticles</kwd>
                                                    <kwd>  Hybrid thermal protection.</kwd>
                                            </kwd-group>
                            
                                                                                                                                                    </article-meta>
    </front>
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