Research on Air-jet Textured Nozzles The Influence of Nozzles

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance

    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...

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  • Air-jet texturing: Effect of jet type and some process ...

    2020-4-22 · parameters on the texturing performance of air-jet texturing nozzles. In order to facilitate the research, an air-jet texturing nozzle with a rectangular crosssection 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 yarns on textured …

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  • Effect of Nozzle Geometry on Air-Jet Texturing

    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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  • Effect of nozzle size on texturing performance:

    2014-9-17 · An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Using four texturing nozzles, both air-jet and steam-jet textured yarns were manufactured. The effect of nozzle size on process and yarn parameters has been studied and compared with air-jet textured yarns.

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  • Influence of the nozzle shape on heat transfer

    On the other hand, the uniformity of heat transfer is improved approximately by 10.7% for a square nozzles as compared to a circular nozzles. Furthermore, the experiments indicate that the uniformity of heat transfer is influenced significantly by the jet-to-jet distance than the jet to plate distance.

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  • Numerical and experimental study of the influence of ...

    2018-12-1 · The nozzles are designed in two main categories, short nozzles with length 12.0 mm and long nozzles with length 24.0 mm each nozzle has four tangential air inlets (injectors) placed in the center of the nozzle with constant orifice diameter 0.5 mm but with different angles with respect to the nozzle axis.

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  • Influence of Laval nozzles on the air flow field in melt ...

    2012-10-1 · The air flow field in the melt blowing process was examined as a function of P inlet at T inlet =25 °C in the absence of meltblown fibers. Based on the CFD simulations two Laval nozzles were fabricated out of 316-stainless steel, designed so they could be attached directly to the existing melt blowing die with minimal modification.

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  • EXPERIMENTAL INVESTIGATION ABOUT THE INFLUENCE

    distribution of direct-jet nozzles by CFD software [15]. ... while the air velocity’s influence on droplet has ... number of investigation and research on dust-suppression spray nozzles, a more ...

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  • Influence of air injection nozzles on filter cleaning ...

    2017-12-1 · Fig. 2(a − c) shows the tested air injection nozzles, i.e., the hole nozzle, nipple nozzle, and dual-slit injector, respectively. The hole and nipple nozzles each had a hole of 10 mm diameter in a 40 A blow tube, and the length of nipple was 80 mm.The dual-slit injector used in the experiment was an air injection nozzle with two columnar slits, which was designed to improve the pulse-jet ...

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  • Research on geometrical parameters effect of fan

    2018-11-15 · studied the flow characteristics of the jet by geometrical of cone-up, cone-down, single-con, and three-hole multiple nozzles. The influence of the geometry of cone-up nozzle, streamline nozzle and cone-down nozzle on the dynamics of jet flow was studied by Wang et al. . By adjusting the velocity and the width of jet flow, Eri et al.

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  • Heat transfer of multi-slot nozzles air jet impingement ...

    2021-3-5 · The research content includes the influence of thermal uniformity analysis and heat transfer capacity owing to the existence of adjacent jets. The multi-slot nozzles experiment was carried out under the specified conditions. ... A multi-slot nozzles air jet heat transfer experiment was performed according to the experimental design.

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  • Research on Effects of Double-layers Arrangement of ...

    2011-1-1 · Based on the YD4A75-C3 electronically controlled common rail diesel engine, combined with the theory of Bosch forth total axial variable nozzles common rail fuel injection system, a research was made on the double-layers arrangement of nozzles’ the influence on the fuel-gas mixing and combustion process in cylinder by using commercial CFD software FIRE.

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  • ABSTRACT - repository.lib.ncsu.edu

    2017-8-1 · The conclusion of this study is that at low H/R (0.1 and 0.15), there is no significant difference in behaviour between IV and symmetrical nozzles, whilst at high H/R (0.2), the IV nozzles begin separating whilst correctly expanded due to the propagation of pressure upstream from the edge of the reaction surface via the boundary layer.

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  • Air flow behaviour in commingling nozzles and their ...

    2016-8-30 · structure of the air-jet textured yarn, mechanism of loop formation, role of water in texturing etc. This current research is aimed to study one such aspect namely the effect of process variables and nozzle design on the tensile properties of the air-jet textured yarns.

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  • THE USE OF AIR-INDUCTION NOZZLES FOR HERBICIDE

    2008-3-24 · Indian Journal of Fibre & Textile Research Vol. 32, December 2007, pp. 414-420 Air flow behaviour in commingling nozzles and their influence on properties of commingled yarns . R Alagirusamya, Vinayak Ogaleb & Manick Bhowmickc. Department of Textile Technology, Indian Institute of Technology, New Delhi 110 016, India

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  • Effect of Nozzle Geometry on

    2014-9-17 · An existing air-jet texturing machine was modified to supply either air or steam to the texturing nozzle. Using four texturing nozzles, both air-jet and steam-jet textured yarns were manufactured. The effect of nozzle size on process and yarn parameters has been studied and compared with air-jet textured yarns.

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  • INFLUENCE OF THE NUMBER OF NOZZLE HOLES ON THE

    2012-5-17 · 27 January 2016 | The Aeronautical Journal, Vol. 118, No. 1209. Effects of area-ratio on the near-field flow characteristics and deflection of circular inclined coaxial jets. Experimental Thermal and Fluid Science, Vol. 54. Effect of a tab on the aerodynamical development and noise of an underexpanded supersonic jet.

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  • The Air Distribution Around Nozzles Based On Active ...

    The design and development of single jet nozzle was carried out in three phases in this research work. The developed nozzles consist of air inlet chamber, wrapper fiber chamber, false twist chamber and fascinated yarn chamber. In the first phase, 1-11 Nozzles were developed with different dimensions.

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  • Injector Nozzle Hole Parameters and their Influence on ...

    2013-1-30 · INFLUENCE OF THE NUMBER OF NOZZLE HOLES ON THE UNBURNED FUEL IN DIESEL ENGINE 1. ... turbulent energy generated by the jet. Because air fuel mixing is connected by turbulence generated at the jet boundary layer, this will offset the benefits of the reduced jet core size. ... All of the nozzles examined

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  • Research on Laval Nozzle and Overall Simulation Analysis ...

    2018-3-1 · The analysis of the airflow from sub-nozzles that have different emitting cross-sections is described. At first, tests were carried out outside the profiled reed and comparison between nozzles was made in terms of air velocity distribution, jet spreading, consumption and exerted drag force.

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  • Influence of Nozzle geometry on spray shape, particle

    2020-10-13 · The air distribution around nozzles based on active chilled beam system Bingjie Wu 1, 2 , Wenjian Cai ,* , Qinguo W ang 3 ,Can Chen 2 , Chen Lin , Haoran Chen 2 1 Energy Research Institute @ NTU ([email protected]), Interdisciplinary Graduate School, Nanyang Technological

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