Statistical analysis of thermal conductivity of nanofluid containing decorated multi-walled carbon nanotubes with TiO2 nanoparticles

Bulletin of materials science

Sedigheh Abbasi²  Seyed Mojtaba Zebarjad¹  Abbas Youssefi³  Seyed Hossein Noie Baghban² 

[1] Department of Material Science and Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran$$Department of Material Science and Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, IranDepartment of Material Science and Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran$$;Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran$$Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, IranDepartment of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Azadi Square, Mashhad, Iran$$;Par-e-Tavous Research Institute, Mashhad, Iran$$Par-e-Tavous Research Institute, Mashhad, IranPar-e-Tavous Research Institute, Mashhad, Iran$$

关键词: MWCNT;    TiO2 nanoparticles;    thermal conductivity;    nanofluid.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

In this paper, we report for the first time the statistical analysis of thermal conductivity of nanofluids containing TiO₂ nanoparticles, pristine MWCNTs and decorated MWCNTs with different amounts of TiO₂ nanoparticles. The functionalized MWCNT and synthesized hybrid of MWCNTâ€�?�TiO₂ were characterized using transmission electron microscopy (TEM). TEM image confirmed that the ends of MWCNTs were opened during their oxidation of them in HNO₃ and TiO₂ nanoparticles successfully attach to the outer surface of oxidized MWCNTs. Thermal conductivity measurements of nanofluids were analysed via two-factor completely randomized design and comparison of data means is carried out with Duncan’s multiple-range test. Statistical analysis of experimental data show that temperature and weight fraction have a reasonable impact on the thermal conductivity of all tested nanofluids (ð›�? = 0.05). The results also show that increased temperature and weight fraction leads to the increased thermal conductivity.

【 授权许可】

Unknown