Preparation and thermal characterization of nanographene- enhanced fatty acid-based solid-liquid organic phase change material composites for thermal energy storage

Kittusamy, Ragul Kumar (author), Rajagopal, Velavan (author), Felix, Paul Gregory (author)

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.

• Language: English
• Keywords: phase change material, graphene nanoparticles, nano-phase change material composite, thermal energy storage, solar water heater
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Publication date: 16.06.2022
• Year: 2022
• Number of pages: Str. 461-470
• Numbering: Vol. 68, no. 7/8
• PID: 20.500.12556/RUL-140831
• UDC: 620.9:620.1
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2022.148
• COBISS.SI-ID: 121848579
• Publication date in RUL: 19.09.2022

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 16.06.2022

Secondary language

• Language: Slovenian
• Title: Priprava in termična karakterizacija trdnih/kapljevitih organskih kompozitnih fazno spremenljivih snovi (PCM) na osnovi maščobnih kislin, izboljšanih z nanografenom, za shranjevanje toplote
• Keywords: PCM materiali, nanodelci grafena, kompozit NPCM, sončna energija, shranjevanje toplote, solarni grelnik vode

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: All-India Council for Technical Education (AICTE)
• Name: AICTE Doctoral Fellowship (ADF) scheme