Transmission Performance of Water-Based Nano Fluid Based on Computational Fluid Dynamics

2015 ◽  
Vol 1095 ◽  
pp. 58-62
Author(s):  
Zheng Zheng Song ◽  
Zhang Yong Wu ◽  
Zi Yong Mo
Keyword(s):  
Mass Fraction ◽  
Good Resistance ◽  
Sedimentation Stability ◽  
Nano Fluid ◽  
Dispersing Agent ◽  
Shaped Tube ◽  
Velocity Flow ◽  
Water Based ◽  
Transmission Fluid ◽  
Membrane Treatment

The nanoboron carbide particle size is 60nm, dispersed in RO reverse osmosis membrane treatment water form water-based nanofluid by adding the dispersant. In experiment, Water-based nanoboron carbide fluid has good resistance sedimentation stability when adding sodium carboxymethyl cellulose as a dispersing agent. Prepared three kinds of water-based nanoboron carbide fluid, the mass fraction of nanoparticles is 0.6%, 0.8%, 1.0%. By establishing a model of U-shaped tube, simulated the water-based nanofluids flow field in U-shaped tube using FLUENT, get velocity flow lines picture and pressure variation graph by CFD post-processing. From simulation results obtained: Water-based nanoboron carbide has good transmission fluid performance when nanoparticles mass fraction of 0.8%.

Study on Dispersion and Rheology of Particles in Water-Based Nano TiN Fluid

2015 ◽  
Vol 1095 ◽  
pp. 53-57
Author(s):  
Xin Wang Ouyang ◽  
Zhang Yong Wu ◽  
Zi Yong Mo
Keyword(s):  
Rheological Properties ◽  
Dispersion Medium ◽  
Mass Fraction ◽  
Deionized Water ◽  
Dispersion Effect ◽  
Step Method ◽  
Sedimentation Stability ◽  
Preparation Conditions ◽  
Water Based

The water-based nanoTiN fluids were prepared by nanoTiN particles, dispersion medium and dispersant using a two-step method. The dispersion and rheology of nanoparticles in water-based fluid were studied under different preparation conditions. The dispersion and rheology of prepared nanoTiN fluids were evaluated and analyzed from the mass fraction of nanoparticles, mass fraction of dispersant and type of dispersion medium respectively by using the analysis of sedimentation stability and rheological properties. The results show that the above-mentioned factors all have different degree of influence on nanofluids’ dispersion and rheology. The viscosity of nanofluids increases with mass fraction of nanoparticles. A balance amount of mass fraction of dispersant will improve nanofluids’ dispersity and fluidity. The dispersion effect of deionized water is the best when the nanoparticles dispersed in different dispersion medium.

Research on the Adhension of Water-Based Ink on UV Varnish

2013 ◽  
Vol 469 ◽  
pp. 26-29 ◽  
Author(s):  
Dan Dan Wang ◽  
Xian Fu Wei ◽  
Bei Qing Huang
Keyword(s):  
Surface Tension ◽  
Dispersing Agent ◽  
Film Forming ◽  
Water Based ◽  
Resin Film ◽  
Major Factors

In order to enhance the adhension of ink, base ink was prepared with proper pigment and grinding resin, as well as dispersing agent, then compounded it and film-forming resin. The paper has studied the major factors, including grinding resin, film-forming resin and additives, which influenced the adhension of water-based ink on UV varnish. The results indicated that the content and the variety of grinding resin had a certain influence on the adhension of water-based ink. Besides, since the structure of film-forming resin is different, it has a significant effect on the adhension of water-based ink with the change of the variety of resin. Whats more, additives, which could decrease the surface tension of ink effectively and made the ink intend to adhere on UV varnish easily, is also an important factor that influences the adhension of the water-based ink on UV varnish.

Experimental Investigation on Surface Tension of Water-Based Graphene Oxide Nanofluids

2014 ◽  
Vol 1082 ◽  
pp. 297-301 ◽  
Author(s):  
Zhao Zhi Zheng
Keyword(s):  
Surface Tension ◽  
Experimental Investigation ◽  
Graphene Oxide ◽  
Mass Fraction ◽  
Deionized Water ◽  
Nanoparticle Size ◽  
Refrigeration Cycle ◽  
Absorption Refrigeration ◽  
Water Based ◽  
Increasing Temperature

The water-based graphene oxide nanofluids were prepared. The surface tension of nanofluids with different mass fraction, temperature and different nanoparticle size was researched. The surface tension value was measured through ringmethod. The experimental results show that the surface tension of nanofluids is increased with increasing the mass faction of nanoparticles. But the surface tension of nanofluids with maximum concentration (0.1 wt %) is only increased up to 2.9% compared with deionized water. The surface tension of nanofluids decreases with increasing temperature and decreasing nanoparticle size. The results of this paper may provide reference for the research of absorption liquid for absorption refrigeration cycle.

Synthesis and characterization of novel flake-shaped carbonyl iron and water-based magnetorheological fluids using laponite and oleic acid with enhanced sedimentation stability

2021 ◽  
pp. 1045389X2098700
Author(s):  
Chandra Shekhar Maurya ◽  
Chiranjit Sarkar
Keyword(s):  
Magnetic Field ◽  
Oleic Acid ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Carbonyl Iron ◽  
Vibration Isolation ◽  
Zero Field ◽  
Sedimentation Stability ◽  
Mr Fluids ◽  
Water Based

In this study, micron-sized flake shaped carbonyl iron (CI) water-based MR fluids were prepared with adding laponite and oleic acid as an additive and surfactant, respectively. The MR suspensions are comprised of the fixed CI particles and water weight %, while weight % of laponite and oleic acid changes from 1 to 3 wt% and 0.5 to 1.5 wt%, respectively. The remarkable enhancement in magnetorheological properties was obtained with improved sedimentation stability for CI/water MR suspensions with the addition of laponite and oleic acid. It was found that at the lowest magnetic field strength, the higher laponite concentration is effective, while at the highest magnetic field strength, the smaller concentration was effective. It was because of the combined effect of the field-induced CI chains and the laponite clay gel network. Its storage moduli showed a stable plateau area for whole angular frequencies, suggesting distinguished solid-like behavior of the MR fluid. Finally, a novel correlation was obtained between the initial settling rate of the CI particles and magnetorheological behavior of CI/laponite/OA MR suspensions with 1 wt% laponite and 0.5 wt% oleic acid, which has less zero-field, high on-state shear stress with enhanced sedimentation stability. The prepared MR fluids are a reliable industrial application vibration-isolation, clutch, and brake.

scholarly journals Study of freezing characteristics of water based grapheme Nano-fluid PCM in a spherical capsule

2018 ◽  
Vol 402 ◽  
pp. 012042
Author(s):  
D Premnath ◽  
K Hemalatha ◽  
G Balaji ◽  
L R Ganapathy Subramanian
Keyword(s):  
Nano Fluid ◽  
Water Based ◽  
Spherical Capsule

Study on Water-Based Paint Stripper for Tinplate

2013 ◽  
Vol 690-693 ◽  
pp. 2071-2075
Author(s):  
Ning Duan ◽  
Yao Wen Gao ◽  
Teng Zhang ◽  
Ke Ming Wu ◽  
Yin Feng Zhang
Keyword(s):  
Electron Microscopy ◽  
Mass Fraction ◽  
Steel Surface ◽  
Ammonium Bromide ◽  
Distilled Water ◽  
Water Based ◽  
Corrosive Effect ◽  
Stripping Efficiency ◽  
Sem Test ◽  
Scanning Electron

A novel water-based paint stripper was prepared for white, metallic ink and varnish coated on the tinplate steel surface. The effect of accelerator and surfactant on stripping efficiency was investigated with the types and dosage of the accelerator and surfactant, the stripping temperature and stirring up condition. The highest stripping efficiency was achieved with the stripper composited by (mass fraction) 35% benzyl alcohol, 6% propanediol carbonate, 10% formic acid, 2% cetyl tri-methyl ammonium bromide (CTMAB) and 47% distilled water, respectively. This paint stripper had low volatility, and was not easy to burn. Scanning electron microscopy (SEM) test indicated that the paint stripper had little corrosive effect on tinplates.

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