International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 05 | May 2023
p-ISSN: 2395-0072
www.irjet.net
Investigation the Stability of the Copper Oxide- Ethylene Glycol Nanofluids. Kusammanavar Basavaraj1*, K Elangovan2, Mallikarjuna Y1, Veerabhadrappa Algur1, Purushotham C1, Sagar H S1, Sagiraj Nagaraj1. 1Department of Mechanical Engineering, RYM Engineering College, Ballari, India, 583104. 2Department of Mechanical Engineering, Er.Perumal Manimekalai College of Engineering, Hosur, India.
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Abstract - Nano fluid is the suspension of nano sized
X.Wang .et al.[3] done the research to measure the Thermal conductivity of the nanofluids for the different concentration nanoparticles using the hot wire method. But the authors does not use the sedimentation method to measure the stability of the nanofluids for the heat transfer applications.
particles in the base fluid. Nanofluids are tremendous heat transfer applications in the field of thermal engineering such as radiator heat exchanger and solar applications etc. the applications of the CuO-Ethylene glycol (EG) nanofluid in a heat transfer area is essential and maintain the stability of CuO- EG nanofluid is necessary. In the present study two step method was used to prepare the CuO- EG nanofluid without adding surfactant.The sedimentation method was adopted to check the stability of the nanofluid for the volumetric concentration of 0.2%, 0.4%,and 0.6% of CuO nanoparticles in the EG. The thermo physical properties of the CuO- EG nanofluid was also studied using the appropriate model in the present work..
The Growth cycle of copper oxide which describes the Copper oxide thin films grown by plasma evaporation method was studied by K.Santra.et al. [4]. In their study they Explain about growth of copper oxide nanofluids which helps to determine thestability of CuO nanofluid for the heat transfer applications. A. Aslani .et al.[5] discuss the Controlling system of copper oxide nanostructure which explains Controlling the morphology and size of CuO nanostructures with synthesis by solvo/hydrothermal method without any additives.
Key Words: CuO-EG nanofluid, stability, sedimentation, thermo physical properties.
As the literature survey suggest that the preparation of the CuO EG nanofluid for the volumetric concentration of 0.2%, 0.4%, and 0.6% using the two-step method was not available for the 20-nanometre size spherical shape CuO nanoparticles. The sedimentation method was adopted to check the stability of the CuO - EG nano fluid was scant. Hence in the present work the preparation of nano fluid using the two-step method for the different concentration of the CuO nanoparticles considered and sedimentation method for stability checking was employed. Apart from these thermo physical properties of the nanofluid such as density, specific heat, thermal conductivity and viscosity for the different concentration of CuO nanoparticles in EG were studied and discussed.
1. INTRODUCTION. Nanofluids are most important and innovative fluids in the heat transfer applications due to the higher thermal conductivity then conventional fluids such as water, ethylene glycol, biofuels, and other oils which are used to transfer the heat from one fluid to another fluids. In order to employee the nano fluids for the heat transfer applications, it is essential to study the thermo physical properties of the CuOEG nano fluids. The preparation method, stability of the nanofluids and heat transfer characteristics of the CuO-EG nanofluids are also essential to focus. Amrut. S. et al [1] discussed Synthesis and optical characterization of copper oxide nanoparticles Author shoes TEM images, for size, tem images to show the rectangular morphology of the CuO nanoparticles. Xray diffraction pattern (XRD) reveals single phase monoclinic structure.Authors also describe the optical characteristics of the CuO nanoparticles.
2. MATERIALS AND METHODS The CuO selected as nano particles and EG as base fluids were selected based on the literature reviews and gap identified. The size of the CuO nano pparticles is 20 nano meter and in spherical in shape the methodology followed for the preparation and stability checking of the nanofluid shown in the Figure 1.
Q. Zhang.et al. [2] studied Characterization of nanoparticles and CuO nanostructures: synthesis, characterization, growth mechanisms, fundamental properties, and applications. The authors tells the characteristics of the nanoparticles.
2.1 Over view of EG EG is an organic compound with formula (C2H2OH), it’s mainly used as antifreeze formulations. It is an odorless,
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