Experimental investigation on thermal conductivity and viscosity of maghemite (γ _Fe2O3) water-based nanofluids

3rd International Conference on Chemical Engineering Sciences and Applications 2017

Nurdin, I.^1 ; Johan, M.R.^2 ; Ang, B.C.^2

Chemical Engineering Department Lhokseumawe State Polytechnic, Aceh

24301, Indonesia^1

Nanomaterials Engineering Research Group, Advanced Materials Research Laboratory, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur

50603, Malaysia^2

关键词: Experimental investigations;    Increasing temperatures;    Maghemite nanoparticle;    Maghemites;    Nanofluids;    Particle volume fractions;    Water based;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/334/1/012045/pdf
DOI  :  10.1088/1757-899X/334/1/012045

来源: IOP

【 摘 要 】

Thermal conductivity and kinematic viscosity of maghemite nanofluids were experimentally investigated at a small volume fraction of maghemite nanoparticles and temperatures. Maghemite nanofluids were prepared by suspending maghemite nanoparticles in water as base fluids. Results show that the thermal conductivity of maghemite nanofluids linearly increase with increasing particle volume fraction and temperature, while kinematic viscosity increase with increasing particle volume fraction and decrease with increasing temperature. The highest enhancement of thermal conductivity and kinematic viscosity are 18.84% and 13.66% respectively, at particle volume fraction 0.6% and temperature 35.