Research on Air Interlacing Nozzle Service-oriented

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  • Fluid Simulation of the Airflow in Interlacing Nozzles ...

    The interlacing degree and loop frequency of the airflow are calculated with respect to different interlacing conditions while processing fine denier yarn thread. The results reveal that better interlacing is produced when the cross-sectional area of the inlet hole or the length of the yarn channel decreases or the inlet air pressure increases.

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  • US Patent for Air nozzle for the interlacing of ...

    The air nozzle has a continuous yarn channel (3.1) into which terminate laterally an air feed bore (5) and a threading slot (4). The wall of the yarn channel (3.1) contains two cylindrical, for example circular-cylindrical wall sections, namely a baffle wall section (6.1) lying in opposition to the air feed bore (5) and a nozzle wall section (9.1) proximate to the air feed bore (5).

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  • Research on control-oriented coupling modeling for air ...

    Research on control-oriented coupling modeling for air-breathing hypersonic propulsion systems ... combustion efficiency, and exothermic reactions based on quasi-1D flow theories. Nozzle/afterbody modeling was established based on identification of the free boundary (i.e., the location of the shear layer) by Newton collision theory, and flow ...

    Get Price
  • [PDF] Effect of Double-Nozzle Jet on Mechanical Properties ...

    Earlier investigations have demonstrated that air interlacing improves the mechanical properties of Self-Twist (ST) yarns. In following of previous efforts, this paper discusses improving of mechanical properties of ST yarn by using double-nozzle jet. In the present work, at first, a Murata jet was attached to Repco ST yarn machine which the air pressure and distance of double-nozzle jet from ...

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    However, in recent times multiple air inlet long length nozzle was introduced for commingling high performance fibres such as glass, carbon, basalt, and aramid . The prime focus of single orifice nozzle used in air-jet texturing or interlacing nozzle was to create loops and impart cohesion between fibres of the yarn.

    Get Price
  • Effect of Geometry on the Performance of Intermingling Nozzles

    This study investigates the effect of nozzle geometry on the intermingling process. The dimensions of intermingling nozzles with single air inlets extended across the width of a rectangular yam channel are systematically varied. Nozzles with this cross-sectional shape prove to be easy to manufacture and efficient at intermingling.

    Get Price
  • Manufacturer for ATY airjet core, interlacing nozzle, air ...

    SIP TEXTILE NOZZLE CO., LTD is the professional manufacturer of the textile machine spare parts for following items: 1. DTY Air Jet Interlacing, 2. ATY Texturing Jet Nozzle, 3. ATY Jet Housing, 4. Aspirator Suction Gun for DTY/FDY/POY/BCF, 5. Textile Ceramic Guides. ATY.

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  • Determination of Yarn Interlacing Frequency of Triangular ...

    A numerical approach to predict the yarn interlacing frequency of triangular interlacing nozzle is discussed in this paper. The inviscid, compressible flow field inside air nozzles is computed through solving the steady continuity, momentum and energy equations with a finite volume method. A mathematical model for the prediction of yarn interlacing frequency of air nozzle is proposed, which is ...

    Get Price
  • Air Interlaced Yarn Structure and Properties - Menghe Miao ...

    The air interlacing technique is used to introduce intermittent nips to a flat filament yam so as to improve its performance in further textile processing. Observation of the interlaced flat yam nips reveals that their structure is very complicated and can be categorized into four classes: twist, braid, wrap, and entanglement nips.

    Get Price
  • Research on control-oriented coupling modeling for air ...

    Research on control-oriented coupling modeling for air-breathing hypersonic propulsion systems ... combustion efficiency, and exothermic reactions based on quasi-1D flow theories. Nozzle/afterbody modeling was established based on identification of the free boundary (i.e., the location of the shear layer) by Newton collision theory, and flow ...

    Get Price
  • Determination of Yarn Interlacing Frequency of Triangular ...

    A numerical approach to predict the yarn interlacing frequency of triangular interlacing nozzle is discussed in this paper. The inviscid, compressible flow field inside air nozzles is computed thro...

    Get Price
  • Numerical Investigation of Nozzle Jet Flow in a Pelton ...

    The characterization of flow through Pelton hydro turbines allows the optimization of their operation and maximization of energy performance. The flow in the injector of Pelton turbines and in the free jet area (the area from the injector outlet surface to the runner bucket inlet surface) is influenced by several parameters: the geometry of injector components (nozzle and injector spear), the ...

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  • US Patent for High-performance device for air interlacing ...

    A device for air interlacing (10) of a yarn (Y), comprising an interlacing chamber (24), a first entrance channel (22) for receiving the yarn (Y) at the device (10) entrance and feeding it to the interlacing chamber (24), and a second exit channel (23) for receiving the yarn from the interlacing chamber (24) and releasing it at the device exit, in which the interlacing chamber (24) is ...

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  • Research on air sprays and unique foam-application methods ...

    @article{osti_6040948, title = {Research on air sprays and unique foam-application methods. Phase II-B report: laboratory investigation of air sprays}, author = {}, abstractNote = {This report presents the results of the laboratory investigation on the effectiveness of air sprays for dust control on longwall faces. The investigation was carried out on a simulated 100-foot-long, 6-foot-high ...

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  • Heberlein - Heberlein

    The Heberlein air migration jet causes an even, economical distribution of the preparation. It produces a crossing of the filaments without interlacing points. The yarns can therefore be better processed (in texturing, for example). Air interlacing jets. During the on-line process, Heberlein air interlacing jets produce the yarn cohesion of the ...

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  • Proceedings of the 3rd International Conference on ...

    Research on Inherent Strain Distribution in Welded Low-Alloy Components; The Correlation Between 45 Steel Fatigue Test and Tangential Components of MMM Signals; The Empirical Survey on the Effect of Using Media in Explosive Forming of Tubular Shells; The Equipment Design for the Nitridation and Decarbonization of Grain-Oriented Silicon Steel

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  • of studies in the following on the terms of

    Areas of interest include data collection, experimental interlacing, laboratory and/or technology oriented computer hardware, optical data acquisition operating systems and data analysis, neuralcomputir and networks. The objective of the study on Laser in Medicine is to provide basic and clinical studieson the

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  • Research progress on precision control methods of air ...

    Orchard air-assisted spraying technology and equipment are incorporating intelligent technologies to achieve higher precision.Liquid application rate and air supply rate are the two manipulated outputs of an orchard sprayer control system,which should be simultaneously controlled precisely at all times.For a target-oriented precision spraying,which aims to reduce off-target deposition or drift ...

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  • Research Raises Awareness of Indoor Air Quality Risk from ...

    Consumer-oriented 3D printers could show up on many holiday wish lists this year, and purchasers should be aware of research conducted at Georgia Institute of Technology that highlights how the popular low-cost devices could pose a health risk by harming indoor air quality.

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  • Method and apparatus for measuring the interlacing degree ...

    There are described a method and an apparatus for measuring the state of interlacing of an interlaced multifilament yarn. The interlaced yarn is moved by a self-conveying fluid nozzle (air nozzle). The yarn largely fills the nozzle channel, whilst it comes out of the nozzle in a state virtually free of tensile stress.

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  • Research on air sprays and unique foam application methods ...

    @article{osti_5317572, title = {Research on air sprays and unique foam application methods. Phase II report. Laboratory investigation of foam systems}, author = {}, abstractNote = {The objective of this study is to assess the effectiveness of air sprays and foam systems for dust control on longwall double-drum shearer faces. Laboratory testing has been conducted using foam systems and ...

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  • Results of Research&Development - BUT

    Results of Research&Development Result type All Publications Patents Products RUV Year All 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 Author, text, editor, patent number…

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  • Spray Nozzle Catalogue

    If you would like the assistance of a Technical Sales Representative simply call toll free 1.877.624.5757 and you will be in touch with the Spray Nozzle Sales Representative nearest you. Our product scope includes a wide range of spray nozzles and accessories for the industrial and process market sectors. Over the years, John Brooks Company ...

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  • of studies in the following on the terms of

    Areas of interest include data collection, experimental interlacing, laboratory and/or technology oriented computer hardware, optical data acquisition operating systems and data analysis, neuralcomputir and networks. The objective of the study on Laser in Medicine is to provide basic and clinical studieson the

    Get Price
  • Temco CoolFlow Texturing Discs - Saurer

    Optimised air stream. The German Institute of Textiles and Fiber Research has completed simulations of the texturizing process and proved that the air flow between the discs has been improved, and we have confirmed the improved heat transfer in numerous factory conditions around the world.

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  • A Design for Fouling Oriented Optimization of an HPT Nozzle

    Friso, R, Casari, N, Suman, A, Pinelli, M, & Montomoli, F. 'A Design for Fouling Oriented Optimization of an HPT Nozzle.' Proceedings of the ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition.

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  • RESEARCH LABORATORY Experimental Investigation of Diffuser ...

    Injector nozzles were located just upstream of the leading edge of the diffuser vanes. Nozzle orientations were set to produce injected streams angled at –8, 0 and +8 degrees relative to the vane mean camber line. Several injection flow rates were tested using both an external air supply and recirculation from the diffuser exit.

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  • Computational and Experimental Study of Plume and Shock ...

    A wind tunnel test was performed in the NASA Ames 9x7 Supersonic Wind Tunnel focusing on the shock waves traveling through and interacting with an exhaust nozzle plume. This experimental study was conducted to develop and validate the CFD capability required to accurately include nozzle flow with impinging shock effects on near field and ground‐propagated sonic boom signatures.

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  • The geometry of air: large-scale multi-colour robotic ...

    This research investigates the integrated design, robotic fabrication and materialisation of novel air-diffusion systems for contemporary office environments. Specifically, the research focuses on the integration of computational design, multi-objective optimisation and the development of novel approaches and techniques for large-scale 3D-printed module systems for low-embodied energy air ...

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  • About Us

    Fluid Air is a division of Spraying Systems Co., the world leader in spray nozzle technology. Spraying Systems Co. was founded in 1937 and has established its leadership through the development of its extensive global sales force, its global manufacturing capabilities, including twelve manufacturing plants worldwide, and its innovative, solution-oriented approach toward customers.Founded in ...

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  • China Air Jet Nozzle, China Air Jet Nozzle Manufacturers ...

    A wide variety of air jet nozzle options are available to you, such as provided, not available. You can also choose from manufacturing plant, hotels, and machinery repair shops. As well as from 1.5 years, 3 months, and 6 months. And whether air jet nozzle is provided, or not available. There are 6,049 air jet nozzle suppliers, mainly located in ...

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  • SAMPLING WITH THE US DH-48 DEPTH-INTEGRATING SUSPENDED ...

    Federal Interagency Sedimentation Project 2 Sampling with the US DH-48 Depth-Integrating Suspended-Sediment Sampler Characteristics Description: The US DH-48 is a lightweight sampler used for collection of isokinetic depth- integrated suspended-sediment samples where wading rod suspension is used (Figure 1).

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  • From a single source: diagnostics, parts and services for ...

    Battery service BAT Vehicle lift equipment VLE New! Light tester HTD Brake system analysis BSA Air-conditioning service p. 32 Reliable air-conditioning service for commercial vehicles: Bosch ACS 810 Bosch Electronic Service p. 33 24-hour repair service for electronic Module Bosch Commercial Vehicles p. 34

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  • China Supplier Aluminum Jet Exhaust Nozzle Ceiling ...

    Air Diffuser, Jet Diffuser Air Diffuser, Jet Diffuser manufacturer supplier in China, offering China Supplier Aluminum Jet Exhaust Nozzle Ceiling Diffuser for Ventilation, HVAC Aluminum Return Air Square Ceiling Supply Air Diffuser with Opposite Blade Damper, HVAC Aluminum Customized Wall Installed Grille Return Air Grille for Ventilation Use and so on.

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  • Application of Rainbow Schlieren Deflectometry for Jets ...

    The jet from a round Laval nozzle followed by a cylindrical duct with an inner diameter of 10 mm and a length of 50 mm is investigated experimentally. The Laval nozzle has a design Mach number of 1.5. Quantitative flow visualization of the jet issued from the duct exit is performed over a range of nozzle pressure ratios from 2.0 to 4.5 using the rainbow schlieren deflectometry combined with ...

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  • Evaluation of a Variable Nozzle Turbine Turbocharger on a ...

    The most common solution is using of pivoted vanes forming a variable nozzle turbine (VNT). The adaptation of VGT turbochargers imposes new and different demands when it comes to the adaptation to the engine system as compared with conventional turbochargers.

    A conventional turbocharger has a fixed operating point at every combination of ...

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  • RESEARCH LABORATORY Experimental Investigation of Diffuser ...

    Injector nozzles were located just upstream of the leading edge of the diffuser vanes. Nozzle orientations were set to produce injected streams angled at –8, 0 and +8 degrees relative to the vane mean camber line. Several injection flow rates were tested using both an external air supply and recirculation from the diffuser exit.

    Get Price
  • Measurement of Air-Velocity Profiles for Finned-Tube Heat ...

    2195, Page 1 Measurement of Air-Velocity Profiles for Finned-Tube Heat Exchangers Using Particle Image Velocimetry David YASHAR1*, Hong Hyun CHO2, Piotr DOMANSKI3 1The National Institute of Standards and Technology, Building and Fire Research Laboratory Mailstop 8631, Gaithersburg, MD, 20899-8631, USA

    Get Price
  • The geometry of air: large-scale multi-colour robotic ...

    This research investigates the integrated design, robotic fabrication and materialisation of novel air-diffusion systems for contemporary office environments. Specifically, the research focuses on the integration of computational design, multi-objective optimisation and the development of novel approaches and techniques for large-scale 3D-printed module systems for low-embodied energy air ...

    Get Price
  • Replacing Rotary Atomizers with Dual Fluid Spray Nozzles

    The plant permit required a baghouse inlet temperature of 300°F and each SDA is followed by a Baghouse. The rotary atomizers were used to spray water to maintain a temperature below this permitted temperature. The plant struggled with operating the SDA’s to cool the gases, so that the temperatures could be kept below 300°F.

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  • Research Raises Awareness of Indoor Air Quality Risk from ...

    Consumer-oriented 3D printers could show up on many holiday wish lists this year, and purchasers should be aware of research conducted at Georgia Institute of Technology that highlights how the popular low-cost devices could pose a health risk by harming indoor air quality.

    Get Price
  • Device for air-intermingling multifilament yarns ...

    The device comprises a body (1, 2) with a continuous yarn channel into which terminate a blast nozzle (7) and a threading slot (8). The yarn channel is defined by two hollow wall surfaces (11.1, 11.2 and 12.1, 12.3) emanating from respectively one rim of the orifice of the threading slot (8) and being symmetrical with respect to a plane of symmetry (E) containing the axis (A) of the yarn channel.

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  • PhD Electrochemistry Research

    The Electrochemistry Group has research programmes to generate new materials and new electrochemical approaches to energy conversion and storage including research in fuel cells, thermoelectrics, lithium batteries and supercapacitors. In batteries a wide range of systems are addressed including novel Li-ion battery structures, electrode ...

    Get Price
  • Meniscus-Confined Three-Dimensional Electrodeposition for ...

    Continued progress in the electronics industry depends on downsizing, to a few micrometers, the wire bonds required for wiring integrated chips into circuit boards. We developed an electrodeposition method that exploits the thermodynamic stability of a microscale or nanoscale liquid meniscus to “write” pure copper and platinum three-dimensional structures of designed shapes and sizes in an ...

    Get Price
  • Background Oriented Schlieren Method (BOS)

    The Background Oriented Schlieren Method is a very simple technique to visualize density gradients, that base on the deviation of light rays due to refractive index changes. The technique can be applied for all kinds of refractive indices. Even very weak density gra-dients cause refractive indices, which can be detected safely. E.g. the convection of warm air …

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  • IJERT – International Journal of Engineering Research ...

    International Journal of Engineering Research & Technology is a peer-reviewed, open access and multidisciplinary engineering, technology and science journal that publishes original research …

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  • Impact of Hose Streams on Air Flows inside a Structure

    environment. NIST has conducted a significant amount of research examining how ventilation affects the growth and spread of fire within structures and how the air flow to the fire may be . controlled to limit or delay the growth of the fire [1, 2]. The studies have provided insight for the fire service regarding ventilation tactics.

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  • Rocket PropulRto'1 Laboretory - DTIC

    Research Corporation the excellent serviceability of pyrolytic graphite coatings in 1/2-inch diameter nozzles was demonstrated with propellants having flame temperatures from 5500* to 6500*F. In the current work nozzles of 1.1-inch and 2.3-inch diameter are to be tested with a [email protected] propellant.

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  • Measurement of Air-Velocity Profiles for Finned-Tube Heat ...

    2195, Page 1 Measurement of Air-Velocity Profiles for Finned-Tube Heat Exchangers Using Particle Image Velocimetry David YASHAR1*, Hong Hyun CHO2, Piotr DOMANSKI3 1The National Institute of Standards and Technology, Building and Fire Research Laboratory Mailstop 8631, Gaithersburg, MD, 20899-8631, USA

    Get Price
  • (PDF) Wet Scrubbers – Design of Spray Tower to Control Air ...

    designed Spray Tower has been to the tune of more than 95 percent. Keywords: particulate matter control, spray …

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  • A simulation analysis for lubricating characteristics of ...

    The 3-D oil-air two-phase flow transient simulation model is built based on the volume of fluid (VOF) method and sliding mesh technique in this research. The two-phase flow field was analyzed.

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  • Effects of Nozzle Helmholtz Number on Indirect Combustion ...

    On the one hand, after fan and jet noise, combustion noise is the dominant cause of noise pollution generated by the whole turbojet. Although methods to mitigate fan and jet noise have been in place for a decade—such as ultra-high bypass ratio turbofan engines, acoustic liners, and fan blade geometric design—combustion noise is bound to increase with the implementation of low-emission ...

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  • Air-cooled heat exchangers INDIVIDUAL SOLUTIONS

    nozzles. Cover plate header with stud bolts In this version, the nozzles are arranged at the top and at the bottom. The benefit: you can remove the cover plate without dismantling any tubes. The cover plates are also available with built-in nozzles…

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  • Numerical Propulsion System Simulation (NPSS)

    NPSS ® stands for Numerical Propulsion System Simulation ®.It is an advanced object-oriented, non-linear thermodynamic modeling environment used by the aerospace industry for modeling turbomachinery, air-breathing propulsion systems, liquid rocket engines, engine control systems, and system model integration.

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  • PhD Electrochemistry Research

    The Electrochemistry Group has research programmes to generate new materials and new electrochemical approaches to energy conversion and storage including research in fuel cells, thermoelectrics, lithium batteries and supercapacitors. In batteries a wide range of systems are addressed including novel Li-ion battery structures, electrode ...

    Get Price
  • Piping Design Guide of Reactors – What Is Piping

    A nozzle summary table indicating the Nozzle number, service, size, rating, flange face, elevation from the bottom tan line, and stand out from the vessel center is to be included in the drawing. For nozzles …

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  • Fluid Simulation of the Airflow in Interlacing Nozzles ...

    The interlacing degree and loop frequency of the airflow are calculated with respect to different interlacing conditions while processing fine denier yarn thread. The results reveal that better interlacing is produced when the cross-sectional area of the inlet hole or the length of the yarn channel decreases or the inlet air pressure increases.

    Get Price
  • US Patent for Air nozzle for the interlacing of ...

    The air nozzle has a continuous yarn channel (3.1) into which terminate laterally an air feed bore (5) and a threading slot (4). The wall of the yarn channel (3.1) contains two cylindrical, for example circular-cylindrical wall sections, namely a baffle wall section (6.1) lying in opposition to the air feed bore (5) and a nozzle wall section (9.1) proximate to the air feed bore (5).

    Get Price
  • Research on control-oriented coupling modeling for air ...

    Research on control-oriented coupling modeling for air-breathing hypersonic propulsion systems ... combustion efficiency, and exothermic reactions based on quasi-1D flow theories. Nozzle/afterbody modeling was established based on identification of the free boundary (i.e., the location of the shear layer) by Newton collision theory, and flow ...

    Get Price
  • [PDF] Effect of Double-Nozzle Jet on Mechanical Properties ...

    Earlier investigations have demonstrated that air interlacing improves the mechanical properties of Self-Twist (ST) yarns. In following of previous efforts, this paper discusses improving of mechanical properties of ST yarn by using double-nozzle jet. In the present work, at first, a Murata jet was attached to Repco ST yarn machine which the air pressure and distance of double-nozzle jet from ...

    Get Price
  • Numerical simulation of airflow behaviour and nozzle ...

    However, in recent times multiple air inlet long length nozzle was introduced for commingling high performance fibres such as glass, carbon, basalt, and aramid . The prime focus of single orifice nozzle used in air-jet texturing or interlacing nozzle was to create loops and impart cohesion between fibres of the yarn.

    Get Price
  • Effect of Geometry on the Performance of Intermingling Nozzles

    This study investigates the effect of nozzle geometry on the intermingling process. The dimensions of intermingling nozzles with single air inlets extended across the width of a rectangular yam channel are systematically varied. Nozzles with this cross-sectional shape prove to be easy to manufacture and efficient at intermingling.

    Get Price
  • Manufacturer for ATY airjet core, interlacing nozzle, air ...

    SIP TEXTILE NOZZLE CO., LTD is the professional manufacturer of the textile machine spare parts for following items: 1. DTY Air Jet Interlacing, 2. ATY Texturing Jet Nozzle, 3. ATY Jet Housing, 4. Aspirator Suction Gun for DTY/FDY/POY/BCF, 5. Textile Ceramic Guides. ATY.

    Get Price
  • Determination of Yarn Interlacing Frequency of Triangular ...

    A numerical approach to predict the yarn interlacing frequency of triangular interlacing nozzle is discussed in this paper. The inviscid, compressible flow field inside air nozzles is computed through solving the steady continuity, momentum and energy equations with a finite volume method. A mathematical model for the prediction of yarn interlacing frequency of air nozzle is proposed, which is ...

    Get Price
  • Air Interlaced Yarn Structure and Properties - Menghe Miao ...

    The air interlacing technique is used to introduce intermittent nips to a flat filament yam so as to improve its performance in further textile processing. Observation of the interlaced flat yam nips reveals that their structure is very complicated and can be categorized into four classes: twist, braid, wrap, and entanglement nips.

    Get Price
  • Technology Demonstration Nozzle for Mach 7 Turboramjets ...

    Research Papers. Technology Demonstration Nozzle for Mach 7 Turboramjets K. Pirker, ... future-oriented designs and technologies for reusable space vehicles, such as SA¨NGER, are being developed. ... MTU constructed and tested, with success from the very beginning, an actively cooled, asymmetric rectangular nozzle (SERN—single expansion ramp ...

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  • Technology

    Services. Lechler offers various services in agricultural and industrial technology as well as in Air Quality Control Systems (AQCS) and metallurgy that optimize your applications and make them more efficient. Services. Measuring Technologies Simulations by CFD Drift-and-loss-reducing technologies for agriculture Cadenas 3D CAD Engineering Data ...

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  • AgroPages-SINVOCHEM’s novel synergistic solution to the ...

    Thus, effort of synergy research deserves to be focused on those delivery stages, so as to compensate potential loss of efficacy. Based on this principle, Sinvochem carried out series of lab/field research and launched his novel synergists, aiming for the full play of efficacy and bioavailability. Figure 1. Investigation on Delivery of AI.

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  • Reactor Coolant System Weld Issues

    The pressurizer was removed from service, inspections were performed on the nozzle welds. These inspections included both surface and volumetric examinations, which concluded that under normal field NDE conditions, three welds would have been reported as having 360 degree circumferentially oriented indications with significant through—wall depth.

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  • Meniscus-Confined Three-Dimensional Electrodeposition for ...

    Continued progress in the electronics industry depends on downsizing, to a few micrometers, the wire bonds required for wiring integrated chips into circuit boards. We developed an electrodeposition method that exploits the thermodynamic stability of a microscale or nanoscale liquid meniscus to “write” pure copper and platinum three-dimensional structures of designed shapes and sizes in an ...

    Get Price
  • Tap Orientation for DP Flow Element in Gas Service

    In gas service, the taps should be oriented so the impulse tubing remains completely filled with gas while ensuring there is no accumulation of liquid between the taps and the transmitter. Failure to maintain a gaseous hydraulic connection between the flow element taps and the differential pressure transmitter can adversely affect the accuracy ...

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  • RTube™ Breath Condensate ... - Respiratory Research

    Exhaled air is directed through a unique one-way valve and into a cooled collection chamber where …

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  • Research Raises Awareness of Indoor Air Quality Risk from ...

    Consumer-oriented 3D printers could show up on many holiday wish lists this year, and purchasers should be aware of research conducted at Georgia Institute of Technology that highlights how the popular low-cost devices could pose a health risk by harming indoor air quality.

    Get Price
  • IJERT – International Journal of Engineering Research ...

    International Journal of Engineering Research & Technology is a peer-reviewed, open access and multidisciplinary engineering, technology and science journal that publishes original research …

    Get Price
  • Dräger International

    Dräger International. Dräger is a leading international company in the fields of medical and safety technology. Founded in Lübeck in 1889, Dräger has grown into a worldwide, DAX-listed enterprise in its fifth generation as a family-run business. Our long-term success is predicated on a value-oriented corporate culture with four central ...

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