A numerical comparison of the thermal performances of nano-PCM heat sinks with Fe3O4, MgO, ZnO and xGNP nanoparticles: Key role of increased thermal conductivity
| dc.authorid | 0000-0002-1777-4980 | |
| dc.contributor.author | Çiçek, Burcu | |
| dc.date.accessioned | 2025-07-08T12:36:33Z | |
| dc.date.available | 2025-07-08T12:36:33Z | |
| dc.date.issued | 2025 | |
| dc.department | Mühendislik Fakültesi | |
| dc.description.abstract | A Nano-PCM heat sink model for electronic device cooling was numerically analyzed. RT-35HC was selected as the PCM. Nano-PCMs were created by using different types of nanoparticles, such as Fe3O4, MgO, ZnO and xGNP, added into the PCM at volume fractions of 0.02, 0.04 and 0.06. Nano-PCM heat sinks were numerically simulated in ANSYS under heat fluxes of 3, 4 and 5 kW/m2. Enthalpy-porosity technique was used and UDFs were set in ANSYS for altering the Nano-PCM's thermal conductivity and dynamic viscosity. Results indicate that, by nanoparticles addition, PCM's melting time and heat sink temperature decreased. The reduction in melting time of Nano-PCM were 6.19 %, 10.8 %, and 14.56 % for volume fractions of 0.02, 0.04, and 0.06 for Fe3O4, respectively, relative to PCM only. Initially, the best thermal conductivity was obtained with utilization of xGNP (15 nm), however, with rising temperature over time, thermal conductivity of Nano-PCM with Fe3O4, (10 nm) became the highest. The findings suggest that the lowest base temperature was attained by using Fe3O4, which has the optimum thermal and physical properties, in a 0.02 volume fraction. A detailed and comparative evaluation was provided by addressing various nanoparticles or different sizes of the same nanoparticle for Nano-PCM heat sink. | |
| dc.identifier.doi | 10.1016/j.tsep.2025.103712 | |
| dc.identifier.issn | 24519049 | |
| dc.identifier.scopus | 105006874669 | |
| dc.identifier.scopusquality | Q2 | |
| dc.identifier.uri | https://dx.doi.org/10.1016/j.tsep.2025.103712 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12451/13207 | |
| dc.identifier.volume | 63 | |
| dc.identifier.wos | 001504712400003 | |
| dc.identifier.wosquality | Q2 | |
| dc.indekslendigikaynak | Scopus | |
| dc.indekslendigikaynak | Web of Science | |
| dc.institutionauthor | Çiçek, Burcu | |
| dc.institutionauthorid | 0000-0002-1777-4980 | |
| dc.language.iso | en | |
| dc.publisher | Elsevier Ltd | |
| dc.relation.ispartof | Thermal Science and Engineering Progress | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.subject | Heat Sink | |
| dc.subject | Melting | |
| dc.subject | Nano-based Phase Change Material | |
| dc.subject | Thermal Performance | |
| dc.title | A numerical comparison of the thermal performances of nano-PCM heat sinks with Fe3O4, MgO, ZnO and xGNP nanoparticles: Key role of increased thermal conductivity | |
| dc.type | Article |
