Turkey PDF The effect of nozzle geometry on air-jet texturereliable quality

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance

    2020-4-22 · The air-jet texturing process is widely known for its ability to produce spun-like synthetic continuous filament yarns. Structural modification is achieved by contact of the continuous feed yarn with a supersonic air stream delivered by a nozzle. The details of the flow patterns are influenced by the geometry of the nozzle. This

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  • INSTITUTE OF BIOPOLYMERS AND CHEMICAL FIBRES

    2018-2-17 · In order to facilitate the research, an air-jet texturing nozzle with a rectangular cross section has been developed. The texturing performance of the nozzles is assessed by means of process observations and on-line measurement of stabilizing zone tension, and also by measuring the in creased linear density of the yams on textured yarn samples.

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  • Experimental and computational analysis of nozzle ...

    2018-2-17 · This paper systematically investigates the effect of a number of geometric parameters on the texturing performance of air-jet texturing nozzles. In order to facilitate the research, an air-jet text...

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  • Optimization of Fuel Inlet Port Geometry of an Air ...

    Compact-jet spinning systems have the possibility for further improvement in terms of changes in nozzle geometry and air pressure level. Acknowledgements This work is supported by grants from the Unit of Scientific Research Projects of Isparta in Turkey (Project No: 1795-D-09) and The Scientific and Technological Research Co-

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  • Optimization of Fuel Inlet Port Geometry of an Air ...

    2020-3-15 · A numerical simulation study was performed to examine the effect of nozzle geometry and divergent length on gas-particle flows in dual hose dry ice blasting. The simultaneous model of mass momentum and energy exchange between two phases was solved iteratively. The phases are solid dry ice particle and compressible air fluid as a working medium.

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  • Water Jet Guided Laser vs. Conventional Laser ...

    2019-3-23 · ao Tuccar G, Uludamar E, Aydın K (2016) Optimization of Fuel Inlet Port Geometry of an Air Assisted Diesel Injector. Adv Automob Eng 5: 158. doi: 10.4172/2167-7670.1000158 Page 3 of 3 oe e 2 oo gg a oe ae oa 2 obtained at the exit orifice of the injector. Maximum injection velocity

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  • INSTITUTE OF BIOPOLYMERS AND CHEMICAL FIBRES

    Compact-jet spinning systems have the possibility for further improvement in terms of changes in nozzle geometry and air pressure level. Acknowledgements This work is supported by grants from the Unit of Scientific Research Projects of Isparta in Turkey (Project No: 1795-D-09) and The Scientific and Technological Research Co-

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  • Water Jet Guided Laser vs. Conventional Laser ...

    2021-4-9 · namely abrasive water jet machining (AWJM), electrical discharge machining (EDM) and laser beam machining (LBM) in terms of quality characteristics. They performed experiments on a nickel-based aerospace alloy, Inconel 718, and found the kerf surface of LBM cuts to exhibit the poorest surface quality, as shown in Fig. 1.

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  • © 2021 JETIR March 2021, Volume 8, Issue 3

    Int. Symp. on Heat Transfer in Gas Turbine Systems 9*14 August 2009, Antalya, Turkey MULTIPLE JET IMPINGEMENT – A REVIEW Bernhard Weigand* and Sebastian Spring Institute of Aersoapce Thermoynamics (ITLR) Universität Stuttgart Pfaffenwaldring 31, 70569 Stuttgart, Germany (* Corresponding author: [email protected]) Jet impingement systems provide an …

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  • Fluid Flow in the Mold - University of Illinois Urbana ...

    We studied the structural properties, bursting strength and pilling properties of single jersey knitted fabrics made from OE rotor spun yarns. Raw material of 100% cotton of the Urfa region of Turkey was specifically handled in the study. The yarns were produced with dif ferent nozzle types with a yarn of linear density of 19.67 tex. Five different ceramic nozzles were used in yarn production.

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  • Various Nozzle Designs Eff ect on the Polyproplene (PP ...

    2003-5-19 · Fig. 14.3 helps to improve surface quality by substantially lowering meniscus turbulence, although it has little effect on air entrainment. 14.2.2 Stopper Rod Flow Control To avoid reoxidation and produce higher quality steel, a protective ceramic nozzle can be used to …

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  • Effect of Process Parameters and Shot Peening on the ...

    2016-11-29 · plasma jet treatment induces 26o contact angle reduction using with N2 type nozzle with constant parameters. Maximum contact angle reduction obtained with the N1 type plasma nozzle. N3 type nozzle effect on surface contact angle value is between them. This change in water contact angle may be as a result of thermal oxidation caused to

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  • & Aeros Journal of Aeronautics & Aerospace El-Zahaby et

    2019-10-17 · Effect of Process Parameters and Shot Peening on the Tensile Strength and Deflection of ... The sample geometry is provided in Fig. 4. ... peened with glass beads from 10 to 25 passes in increments of 5 passes at a constant maximum air pressure of 85 psi with the gun nozzle …

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  • One-dimensional Model of an Optimal Ejector and

    2019-2-15 · mesh quality of minimum orthogonal quality equal to 8.04913e-01 and maximum aspect ratio equal to 2.50071e+01(according to Fluent mesh quality indicator [20]. While the cells close to primary nozzle, walls and mixing section is dense enough to solve the complex flow phenomenon at each. Secondly, in order to predict better the internal flow status,

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  • A review on nozzle wear in abrasive water jet machining ...

    2017-1-16 · The effect of nozzle-exit-channel shape on the resultant fiber diameter was investigated by machining several nozzles with different exit-channel shapes. The cross-sectional area for C1, Sqr, Tri, and R1 nozzles was 38 000 ± 500 μm 2. Figure 4 shows the average diameters of produced fibers using C1, Sqr, Tri, and R1 nozzles at 100 °C to 140 ...

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  • ţă conform site CNATDCU (varianta Ianuarie 2012)

    2014-4-15 · One-dimensional Model of an Optimal Ejector and Parametric Study of Ejector Efficiency Ronan K. McGoverna, Kartik V. Bulusub, Mohammed A. Antarc and John H. Lienhard Vd a Massachusetts Institute of Technology, Cambridge, MA, U.S.A., [email protected] b The George Washington University, Washington D.C., U.S.A., [email protected] c King Fahd University of …

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  • Shi, Z., Chen, J., You, R., Chen, C., and Chen, Q. 2016 ...

    2016-6-24 · 1 Modeling of Gasper-Induced Jet Flow and Its Impact on Cabin Air Quality Zhu Shi1, Jun Chen1, Ruoyu You1, Chun Chen2 and Qingyan Chen1,3 1 School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA 2 Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T. 999077, Hong Kong SAR, China

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  • Fluid Flow in the Mold - University of Illinois Urbana ...

    2003-5-19 · Fig. 14.3 helps to improve surface quality by substantially lowering meniscus turbulence, although it has little effect on air entrainment. 14.2.2 Stopper Rod Flow Control To avoid reoxidation and produce higher quality steel, a protective ceramic nozzle can be used to …

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  • International Journal of Engineering Trends and

    2017-2-8 · nozzle jet ejector and is as follows A. Experimental set up 1. The experimental Setup for industry scale jet ejector is shown schematically in Figure 2. concentration and gas concentration. The results are compiled. Fig. 1 Detail of the jet ejector used in experimental setup These experiments were conducted on industrial stage

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  • Heat Transfer, Fluid Mechanics and Thermodynamics in ...

    2016-4-8 · The effect that two different mesh grids have on the structure of the mixing layer of an axisymmetric jet was studied in the seventh paper. Detailed measurements of mean velocity and turbulent velocity fluctuations were made with a hot wire probe. The grids were introduced at two locations: one location just downstream of the nozzle exit plane ...

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  • Efficient Cleaning of Heating and - cbpg.com

    2020-6-3 · Nozzle geometry and nozzle diameter, as well as the blowing pressure, are essential factors that determine the water jet quality. In the cleaning operation, the water impact angle, the water volume and the size of the covered area must match the intensity and characteristics of the deposit. By varying the water jet speed, the impact time is ...

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  • THE EFFECT OF DEINKING AND BINDER TYPE ON INKJET

    2020-11-10 · a nozzle via piezoelectric motion in a closed chamber (Figure 1). Inkjet ink consists of a solute dissolved or otherwise dispersed in solvent (Tekin et al, 2008). The ink inside the continuously moving print head ejects a fixed amount of ink out of the nozzle due to the shock effect by electrical voltage changes (Lim et al, 2008).

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  • ţă conform site CNATDCU (varianta Ianuarie 2012)

    2013-10-10 · 18 Title: The effect of frontal nozzle geometry and of gas pressure on the steel coating properties obtained by wire arc spraying Author(s): Toma Stefan Lucian, Bejinariu Costica, Baciu Raluca, Radu Steluta Source: Surface & Coatings Technology (2012),online on November, 14, 2012 DOI: 10.1016/j.surfcoat.2012.11.011 Published: 2012 1.51351

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  • Cold spray coating: review of material systems and future ...

    2014-7-4 · REVIEW Cold spray coating: review of material systems and future perspectives A. Moridi1,2, S. M. Hassani-Gangaraj1,2, M. Guagliano*1 and M. Dao2 Cold gas dynamic spray or simply cold spray (CS) is a process in which solid powders are

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  • Investigating the effect of fabrication temperature on ...

    2018-10-1 · such effect has a strong influence on the strength of parts fabricated with extruded filaments perpendicular to load direction [13]. This effect which is also known as corner effect is the result of decelerating and accelerating of the nozzle at turns, which leads to a …

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