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  • The influence of molecular geometry on the efficiency

    2010-11-1 · 1. Introduction. This paper describes the effect of injector geometry on the performance of an internally mixed injector. The objective of this effort is to develop a fuel injector whose spray properties could be varied in a controlled fashion to accommodate various operating conditions , .For example, it may be desirable to keep the mean droplet size constant while varying the fuel flow rate ...

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  • Effect of injector geometry on the performance of an ...

    2012-9-1 · The R744 two-phase ejector assembly consisted of a stainless steel nozzle section, brass mixing and diffuser sections, and a stainless steel ending section (see Fig. 2).The investigation into the influence of geometry was limited to different sizes of the mixer and the diffuser with a constant geometry of the motive nozzle.

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  • Experimental and numerical investigation of the

    2011-4-1 · Geometry 1 is poor for mixing and there was nothing to encourage mixing in the fluids that flow through it. In microchannel Reynolds number ( Re ) is calculated as Re = ( LV avg ρ ) μ , where L is the effective channel length, V avg is the average velocity of fluid in the channel, ρ is the density and μ is the viscosity of the fluid.

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  • Effect of micro-channel geometry on fluid flow and

    2002-3-4 · A Numerical Study of the Influence of Diesel Nozzle Geometry on the Inner Cavitating Flow. 2002-01-0215. In order to analyze the influence of nozzle geometry on the internal flow characteristics of a Diesel injector, a CFD analysis of the flow through various nozzle geometries has been carried out with a commercial code.

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  • A Numerical Study of the Influence of Diesel Nozzle ...

    2014-11-17 · In studying the influence of the mixing chamber length on the performance of the steam ejector, the primary, the secondary and the back pressure are fixed at 600 kPa, 15 kPa and 40 kPa, respectively. The mixing chamber length is changed without changing the convergence angle and the outlet diameter of the mixing chamber.

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  • Numerical investigation of the influences of mixing ...

    2014-7-3 · Influence of the mixing system. Static mixing systems, which are shown in Fig. 4, were used to examine the influence of mixer geometry and the number of mixing elements on the adhesive properties. The spiral mixer consists of 24 spirals twisted by 180 ° and joined rotated by 90 °, respectively.

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  • Influence of the dosing and mixing technology on the ...

    2016-8-5 · So this influence on the performance of the ejector is also negligible and this is another reason the divergent section length of the nozzle can be designed in a much broader range. Download : Download high-res image (291KB) Download : Download full-size image; Fig. 10. Velocity counters at different nozzle divergent section length.

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  • Numerical study for the influences of primary nozzle

    2018-10-1 · The shape of the tank plays an important role in the hydrodynamic performance of the agitation. A 3D simulation was done using CFD calculation code (CFX16.0). The study was carried out for large Reynolds number: 104–2.105. Navier–Stokes equations governing the phenomenon are solved by a method of discretization finite volume. The turbulence model used is the k–ε standard type.

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  • Influence of the vessel shape on the performance of a ...

    2021-5-6 · 2.4 Influence of Electro-Chemo-Mechanical Degradation of SEs 2.4.1 CV and In Situ Pressure Monitoring. In order to eliminate the influence of LCO(coated) and focus on the properties of the SEs on cell performance, Li 4 Ti 5 O 12 | LGPS | SE/C65 cells were fabricated. Carbon C65 was added to investigate the decomposition of the SEs in contact ...

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  • Article What Affects Dewatering Performance of High ...

    Several means for visualizing large-scale vortex structure in a turbulent mixing layer are proposed. Most of the observations are recorded along the low-speed side of the mixing layer, external to the rotational portion of the flow.

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  • Experimental investigations of the influence of mixing ...

    The experimental apparatus and procedure are described. The aim of the research was to investigate the influence of the ejector geometry on is performance. A special attention was paid to the influence of the mixing chamber length on the gas suction rate, ejector efficiency as well as on the friction loss coefficient of the mixing chamber.

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  • The Influence of Tip Geometry and Distance on Light

    2008-1-1 · Therefore, for lower distances between the light guide and the restorative material, the tip with a higher R-value is more efficient. Between 4 mm and 5 mm of distance, there is a change in efficacy between the two tips, and the tip with R=1.18 generates a higher depth of cure (4.52 ± 0.02 mm) than the tip with R=1.63 (4.44 ± 0.03 mm).

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  • Selective aerobic oxidation of para-xylene in sub- and ...

    2021-2-16 · Lai, TW, Fu, SC, Chan, KC, Chao, CYH, & Law, AKY. 'Numerical Study on the Influence of Microchannel’s Geometry on Sub-Micron Particles Separation Using Acoustophoresis.' Proceedings of the ASME 2020 International Mechanical Engineering Congress and Exposition. Volume 1: Acoustics, Vibration, and Phononics. Virtual, Online. November 16–19, 2020.

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  • Numerical Study on the Influence of Microchannel’s ...

    2014-6-20 · The PFF cell is an exception that shows much lower performance. A single polarization curve at 120 mL/min is shown at the bottom of Figure 6. The poor performance of the PFF cell can be attributed to low rates of vanadium transfer to the fibers in the electrode in the absence of forced convection.

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  • The Influence of Electrode and Channel

    2021-7-31 · Energy Consumption Performance of Aeration Systems. One of the key factors to consider when evaluating performance characteristics of various aeration mixing system options is the predicted cost of energy to operate the system over its useful life. The challenge in calculating such costs is including efficiency data from manufacturers that ...

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  • Energy Consumption Performance of Aeration Systems

    2021-7-20 · The effect of mixing plane boundary condition in conjugate heat transfer analysis is studied. The vehicle is a 1.5 stage warm turbine rig solved using a loosely coupled fluid/solid heat transfer ...

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  • COMPUTATIONAL FLUID DYNAMICS (CFD):

    2016-8-3 · Influence of steel fibres and matrix composition on the properties of UHPFRC Kim Huy Hoang, Philipp Hadl, Nguyen Viet Tue 5 4. Results Table 2: The critical volumes of StF1 and StF2 and the equivalent fibre factors for the four UHPC matrices. Fibre …

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  • Influence of Steel Fibres and Matrix Composition on The ...

    2021-7-14 · Railway ballast degradation under dynamic loads progressively leads to loss of mechanical performance and geometry of the track, so that maintenance interventions are frequently needed.

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  • Investigation on the Performance of Railway Ballast

    2020-8-14 · In response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), some politicians have been keen to exploit the idea of achieving herd immunity. Countering this possibility are estimates derived from work on historical vaccination studies, which suggest that herd immunity may only be achieved at an unacceptable cost of lives. Because human populations are far from homogeneous ...

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