20.500.12556/RUL-140831 Preparation and thermal characterization of nanographene- enhanced fatty acid-based solid-liquid organic phase change material composites for thermal energy storage Priprava in termična karakterizacija trdnih/kapljevitih organskih kompozitnih fazno spremenljivih snovi (PCM) na osnovi maščobnih kislin, izboljšanih z nanografenom, za shranjevanje toplote In this research work, nano-phase change material (NPCM) composites were prepared by adding 1 %, 2 %, and 3 % mass fractions of highly conductive carbon-based graphene nanoparticles into the base phase change material (PCM). The existence and uniform graphene dispersion in the PCM was confirmed through Raman spectrometer and scanning electron microscope (SEM) analysis. The Fourier transform infrared (FTIR) and x-Ray diffraction (XRD) results showed that all three NPCM composites were chemically stable, and their crystallinity was similar to the base PCM. For the sample with 3 % graphene, the solid-state thermal conductivity was increased by 219.89 %, and liquid-state thermal conductivity was increased by 161.65 %, with a 3.52 % drop in latent heat capacity was revealed from differential scanning calorimetry (DSC) analysis. All NPCM composites have onset and peak melting temperatures closer to the base PCM. Hence, the NPCM composites can be employed for thermal energy storage (TES) integrated solar water heater (SWH) applications. phase change material graphene nanoparticles nano-phase change material composite thermal energy storage solar water heater PCM materiali nanodelci grafena kompozit NPCM sončna energija shranjevanje toplote solarni grelnik vode true false true Angleški jezik Slovenski jezik Članek v reviji 2022-09-19 12:23:16 2022-09-19 12:23:22 2022-09-20 04:05:16 0000-00-00 00:00:00 2022 0 0 Str. 461-470 no. 7/8 Vol. 68 Jul./Aug. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-06-16 620.9:620.1 0039-2480 10.5545/sv-jme.2022.148 121848579 Kumar_Kittusamy,_Rajagopal,__Felix_-_Preparation_and_thermal_characterization_of_nanographene-_enhanced_fatty_acid-based_solid-liquid_organic_phase_change_material_composites_for_thermal_energy_storage.pdf Kumar_Kittusamy,_Rajagopal,__Felix_-_Preparation_and_thermal_characterization_of_nanographene-_enhanced_fatty_acid-based_solid-liquid_organic_phase_change_material_composites_for_thermal_energy_storage.pdf 1 EFBF3A2A4448D64B668D59FEA4B24F0A 8803aee1bbfe4217985376143e96ae50262791307bfa53308c9d2ae504b0daef 89c55b84-3805-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=161636 https://www.sv-jme.eu/sl/article/preparation-and-thermal-characterization-of-nanographene-enhanced-fatty-acid-based-solid-liquid-organic-phase-change-material-pcm-composites-for-thermal-energy-storage/ 1 0ace2a6d-3805-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=161635 Fakulteta za strojništvo Strojniški vestnik 0 0 0