نتایج جستجو برای: zno nanofluids
تعداد نتایج: 22248 فیلتر نتایج به سال:
Nanofluids have gained attention for their potential to solve overheating problems in various industries. They are a mixture of base fluid and nanoparticles dispersed on the nanoscale. The can be metallic, ceramic, or carbon based, depending desired properties. While nanofluids offer advantages, challenges such as nanoparticle agglomeration, stability, cost effectiveness remain. Nonetheless, on...
In this research, Zinc Oxide-Ethylene @ glycol distilled water based nanofluid was synthesized using the sonochemical method. The convective heat transfer properties of as were observed for a closed single circular tube pipe in turbulent flow regimes. prepared nanofluids characterized by ultra violet spectroscopy (UV–VIS), UV–VIS absorbance, X-Ray diffraction (XRD), Fourier transform infrared (...
Abstract Mono, hybrid, and ternary nanofluids were tested inside the plain twisted-tape pipes using k-omega shear stress transport turbulence models. The Reynolds number was 5,000 ≤ Re 15,000, thermophysical properties calculated under condition of 303 K. Single (Al 2 O 3 /distilled water [DW], SiO /DW, ZnO/DW), hybrid (SiO + Al ZnO/DW, ZnO /DW) in mixture ratio 80:20, ZnO/DW) 60:20:20 estimate...
In this article, carbon black nanofluids were prepared by dispersing the pretreated carbon black powder into distilled water. The size and morphology of the nanoparticles were explored. The photothermal properties, optical properties, rheological behaviors, and thermal conductivities of the nanofluids were also investigated. The results showed that the nanofluids of high-volume fraction had bet...
Nanofluids are a new class of fluids engineered by dispersing nanometer-size structures (particles, fibers, tubes, droplets) in base fluids. The very essence of nanofluids research and development is to enhance fluid macroscopic and megascale properties such as thermal conductivity through manipulating microscopic physics (structures, properties and activities). Therefore, the success of nanofl...
Sustainable machining, with implementation of eco-friendly dry and minimum quantity lubrication (MQL) methods, has gained attraction researchers engineers to solve the environmental health allied issues caused by bulk usage conventional cutting fluids. Nanofluids have recently became more obvious choice as a fluid in MQL applications owing their superior thermo-physical properties. In this work...
Nanofluids, i.e., colloidal dispersions of nanoparticles in a base liquid (solvent), have received considerable attention in the last years due to their potential applications. One attractive feature of these systems is that their thermal conductivity can exceed the corresponding values of the base fluid and of the fluid with large particles of the same chemical composition. However, there is a...
Nanofluids are suspensions of nanoparticles in base fluids, a new challenge for thermal sciences provided by nanotechnology. Nanofluids have unique features different from conventional solid-liquid mixtures in which mm or μm sized particles of metals and non-metals are dispersed. Due to their excellent characteristics, nanofluids find wide applications in enhancing heat transfer. Research work ...
In this research, two different diesel oil-based nanofluids were prepared and the influence of temperature nanoparticle content examined on viscosity, tribological, physicochemical features oil. The kinematic viscosity samples was experimentally evaluated based standard ASTM D445. greatest increment diagnosed at 0.7 wt% 100 °C for both nanofluids. anti-friction behavior studied utilizing a pin-...
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