Effect of nozzle size on texturing performance comparison

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  • Effect of nozzle size on texturing performance: comparison ...

    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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  • Effect of nozzle size on texturing performance: comparison ...

    2014-9-17 · (2015). Effect of nozzle size on texturing performance: comparison between air-jet and steam-jet texturing. The Journal of The Textile Institute: Vol. 106, No. 10, pp. 1051-1058.

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  • Effect of nozzle size on texturing performance: comparison ...

    Effect of nozzle size on texturing performance: comparison between air-jet and steam-jet texturing Abstract The objectives of this research work were to investigate the use of steam in order to

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance

    Abstract and Figures. 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 ...

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  • Effect of Nozzle Geometry on Air-Jet Texturing Performance ...

    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 texturing nozzle with a rectangular cross section has been developed.

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  • Effects of core-yarn overfeed on texturing performance ...

    Effect of nozzle size on texturing performance: comparison between air-jet and steam-jet texturing September 2014 · Journal of the Textile Institute G.L.D. Wickramasinghe

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  • Effect of nozzle type, size and pressure on spray droplet ...

    2007-7-1 · The test results clearly show the effect of the nozzle type, size and pressure on the droplet size and velocity spectra. Comparison with the results from other researches confirms the need for reference nozzles to classify sprays because of the considerable variation of absolute results depending on settings and type of measuring equipment.

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  • RESEARCH Open Access Investigation of the influence of ...

    2017-8-29 · Investigation of the influence of effect-yarn draw and effect-yarn overfeed on texturing performance: comparison between air-jet and steam-jet textured yarn Ganemulle Lekamalage Dharmasri Wickramasinghe1* and Peter William Foster2 *Correspondence:[email protected] 1Department of Textile and Clothing Technology, University of Moratuwa, Moratuwa ...

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  • Role of textured tool in improving machining performance ...

    2019-7-1 · The size and shape of the textures generally depend on the size of grains of the micro-abrasive powders, pressure of air and nozzle to surface distance. In comparison to other techniques such as EDM, laser surface texturing, micro grinding, etc., it proves to be an effective and more economical technique to create micro level textures over a ...

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  • aerodynamics - How does the nozzle diameter affect the ...

    2021-8-3 · In general, the job of a nozzle is to match the pressure at jet engine exit to that outside it. If the pressure is different, it gets matched outside the engine, where it doesn't produce thrust. When the engine is a rocket, which creates high pressure, the nozzle needs to expand the gas, converting pressure to thrust through acting on the nozzle.

    Get Price
  • EFFECT OF DIFFERENT NOZZLES ON THE PERFORMANCE OF

    2019-4-21 · comparison with the direct nozzle. Both direct nozzle with acceptable maximum length and diverging nozzle of small length and high divergence angle improve the thrust of the engine. REFERENCES M. Ruhul Amin et al[11] made numerical investigations on the effects of nozzle geometry on the performance of a Pulse

    Get Price
  • Effect of bubble characteristics and nozzle size on the ...

    2019-4-24 · Smaller nozzle size is more useful to enhance permeate flux and postpone a sharp flux decline. The results are consistent with the inspection of membrane surface autopsy by SEM. It is observed that less crystal deposition with rougher crystal face occurs on the membrane surface when using the smaller nozzle size (2.2 mm) in the intermittent gas ...

    Get Price
  • Air-jet yarn texturing and its nozzles - Textile Today

    2015-3-1 · Being effectively cylindrical nozzles can be included in the same category although they have two inlet roles in comparison to the one inlet hole in the T1OO and the three inlet holes in the T341 and standard-core nozzles. The effect of the area ratio of the inlet holes to the main duct if closer the higher the velocities at the exit plane of ...

    Get Price
  • Effect of area ratio of the primary nozzle on steam ...

    Effect of area ratio of the primary nozzle on steam ejector performance considering nonequilibrium condensations Yan Yang a, Nikolas Karvounis b, Jens Honore Walther b, c, Hongbing Ding d, Chuang Wen a, b, * a Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, United Kingdom b Department of Mechanical Engineering, Technical University of Denmark, Nils …

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  • (PDF) Impact of Process Parameters and Nozzle Design on ...

    1.6.1 Principle of air-jet texturing The processes of air-jet texturing are illustrated schematically in figure 1; When overfed (V1 > V2) filaments enter the texturing nozzle, they are carried along through the nozzle, blown out from the texturing end, and are formed into loops which are mutually trapped in the yarn structure by the effect of ...

    Get Price
  • Effect of nozzle rotation angles and sizes on thermal ...

    2018-9-14 · The effect of the nozzle ratio area on the swirl anti-icing system’s performance to be discussed in the present work. The simulation results show that the hotspot temperature decreases by 26 % and the cold spot temperature increases by 18 %, as the nozzle to be rotated from 0o to 13o towards the inner skin.

    Get Price
  • (PDF) ANALYSIS OF THE EFFECT OF NOZZLE HOLE DIAMETER

    An experimental study was carried out to find out the effect of fuel injector nozzle hole diameter on diesel engine performance using Karanja oil- diesel blends. For this experimental setup a 5.97 KW single cylinder, water-cooled, direct injection

    Get Price
  • Size effect on gas flow in micro nozzles - IOPscience

    2005-9-20 · To analyze the size effect on the flow characteristics in the micro nozzle, further studies were done in nozzles with different scales keeping geometric similarity by numerical simulation. This guarantees the ratio of outlet area to throat …

    Get Price
  • Effect of Nozzle Selection and Spray Volume on Droplet ...

    Effect of Nozzle Selection and Spray Volume on Droplet Size and Efficacy of Engenia Tank-Mix Combinations Christopher J. Meyer, Jason K. Norsworthy, Greg R. Kruger, and Tom L. Barber* Sprayer applicator-controlled variables, such as nozzle selection and spray volume, will become

    Get Price
  • The Effect of Variable Nozzle Temperature and Cross ...

    2021-7-20 · Nozzle temperature is varied from 220 to 260 °C in 10 °C increments and 231 °C is found as optimum for highest tensile properties. Using the optimum nozzle temperature of 231 °C in the narrow section, and a higher temperature of 261 °C in the grip sections and transition areas moves the breakage location towards the specimen center.

    Get Price
  • Effects of Geometry on the Flow Characteristics and ...

    2020-4-22 · nozzle with an expanded, parallel laser beam and projecting the resulting image on a screen. Standard texts such as Shapiro [11] explain the technique in more detail. The shadowgraphs were recorded with a 35 mm camera. Texturing Trials . In order to compare the performance of the various nozzles, we ran a series of texturing trials

    Get Price
  • Comparison of the Influences of Surface Texture and ...

    Close attentions have been widely paid to the engineering textured and slip surfaces for improving bearing tribological performances. Comparison studies on the tribological characteristics of slip and textured surfaces are carried out in this work. The analysis results point out that the influences of surface texture and boundary slip on tribological performances of slider bearing are strongly ...

    Get Price
  • 6.2. Nozzle Sizes — Bob's Project Notebook

    2021-7-12 · The next comparison uses an XYZ calibration cube printed with the following settings: Max volumetric speed 15 mm 3 /s (PLA) 2 perimeters. 20% infill. 5 top and bottom layers. Default PrusaSlicer extrusion width (calculated from nozzle size) Here are the results with a 0.40mm nozzle:

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  • Nozzles - NASA

    2021-5-13 · A typical nozzle-afterbody configuration is shown in the upper right for an F-15 with experimental maneuvering nozzles. As with the inlet design, the external nozzle configuration is often designed by the airframer and subjected to wind tunnel testing to determine the performance effects on the airframe. The internal nozzle is usually the ...

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  • Evaluation of the Predictive Capability of Diesel Nozzle ...

    2007-4-16 · Following the comparison with experiment, the effect of cavitation model assumptions, numerical implementation, discretisation scheme, model of turbulence grid resolution and cavitation physical sub-models on the predicted results on the nozzle discharge coefficient and hole exit %blockage are evaluated.

    Get Price
  • Modeling the Effect of Injector Nozzle-Hole Layout on ...

    2008-3-28 · Numerical simulations were used to study the effect of reduced nozzle-hole size and nozzle tip hole configuration on the combustion characteristics of a high speed direct injection diesel engine. The KIVA code coupled with the CHEMKIN chemistry solver was used for the calculations. The calculations were performed over wide ranges of equivalence ...

    Get Price
  • MicroBlasting Nozzles and Abrasive Media

    2020-1-29 · Comparison of spot size, shape, and depth from standard vs. Hi/Performance nozzles. Customers report up to 10x the efficiency with Hi/Performance nozzles. Standard .046 nozzle 50 micron Aluminum Oxide @ 100 psi Hi/Performance .046 nozzle 50 micron Aluminum Oxide @ 100 psi Standard .046 nozzle 50 micron Aluminum Oxide @ 100 psi Hi/Performance ...

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  • aerodynamics - How does the nozzle diameter affect the ...

    2021-8-3 · In general, the job of a nozzle is to match the pressure at jet engine exit to that outside it. If the pressure is different, it gets matched outside the engine, where it doesn't produce thrust. When the engine is a rocket, which creates high pressure, the nozzle needs to expand the gas, converting pressure to thrust through acting on the nozzle.

    Get Price
  • Spray Nozzle Index - fluidproducts.com

    2021-8-17 · Pressure. Pressure has an inverse effect on droplet size. An increase in pressure will reduce the droplet size, whereas a reduction in pressure will increase the droplet size. Example: A 1 gpm flat spray nozzle has a larger droplet at 30 psi than at 60 psi. Similarly, a 10 gpm full cone nozzle has a smaller droplet size at 40 psi than at 10 psi.

    Get Price
  • Aerospaceweb.org

    In an ideal nozzle that optimizes performance, the exit pressure (P exit) will be equal to the ambient pressure of the external atmosphere (P ¥). The flow in this case is perfectly expanded inside the nozzle and maximizes thrust. Unfortunately, this situation can only occur at one specific atmospheric pressure on a fixed-geometry nozzle.

    Get Price
  • Effects of Geometry on the Flow Characteristics and ...

    2020-4-22 · nozzle with an expanded, parallel laser beam and projecting the resulting image on a screen. Standard texts such as Shapiro [11] explain the technique in more detail. The shadowgraphs were recorded with a 35 mm camera. Texturing Trials . In order to compare the performance of the various nozzles, we ran a series of texturing trials

    Get Price
  • Effect of the Injector Nozzle Hole Diameter and Number on ...

    2005-10-24 · Effect of the Injector Nozzle Hole Diameter and Number on the Spray Characteristics and the Combustion Performance in Medium-Speed Diesel Marine Engines 2005-01-3853 Experiments and numerical simulations have been carried out to investigate the NOx formation and fuel consumption according to various fuel injection nozzle geometry in medium ...

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  • Comparison of the Influences of Surface Texture and ...

    Close attentions have been widely paid to the engineering textured and slip surfaces for improving bearing tribological performances. Comparison studies on the tribological characteristics of slip and textured surfaces are carried out in this work. The analysis results point out that the influences of surface texture and boundary slip on tribological performances of slider bearing are strongly ...

    Get Price
  • INFLUENCE OF ORIFICE NOZZLE GEOMETRY ON FLOW AND

    2015-3-3 · This project is focusing on the effect of different size of inlet diameter and the different injection pressure on an orifice nozzle on flow and spray characteristics. To complete this project, the actions are required: i. Study of different orifice nozzle geometry that related to the flow and spray characteristics. ii.

    Get Price
  • MicroBlasting Nozzles and Abrasive Media

    2020-1-29 · Comparison of spot size, shape, and depth from standard vs. Hi/Performance nozzles. Customers report up to 10x the efficiency with Hi/Performance nozzles. Standard .046 nozzle 50 micron Aluminum Oxide @ 100 psi Hi/Performance .046 nozzle 50 micron Aluminum Oxide @ 100 psi Standard .046 nozzle 50 micron Aluminum Oxide @ 100 psi Hi/Performance ...

    Get Price
  • A TOTAL LOOK AT OIL BURNER NOZZLES

    2018-6-11 · Effects of Pressure on Nozzle Performance . . . . . . . . . . 12 ... and an increase in droplet size. Type A nozzles produce a spray which delivers fine droplets outside the periphery of the main spray cone. These fine droplets greatly enhance ignition and create a stable flame for use with

    Get Price
  • The thermochemical non-equilibrium scale effects of the ...

    2020-8-10 · The high enthalpy nozzle converts the high enthalpy stagnation gas into the hypervelocity free flow. The flow region of the high enthalpy nozzle consists of three parts: an equilibrium region upstream of the throat, a non-equilibrium region near the throat, and a frozen region downstream of the throat. Here we propose to consider the thermochemical non-equilibrium scale effects …

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  • aerodynamics - How does the nozzle diameter affect the ...

    2021-8-3 · In general, the job of a nozzle is to match the pressure at jet engine exit to that outside it. If the pressure is different, it gets matched outside the engine, where it doesn't produce thrust. When the engine is a rocket, which creates high pressure, the nozzle needs to expand the gas, converting pressure to thrust through acting on the nozzle.

    Get Price
  • Everything about nozzles with a different diameter - Prusa ...

    2018-6-7 · Let’s compare it to the default 0.4mm nozzle. Despite the fact that ‘Detect thin walls’ is enabled, parts of the letters can be lost during slicing. This won’t happen with a 0.25mm nozzle, so you can use it to print an unusual …

    Get Price
  • COMPARISON OF DELUGE AND WATER MIST SYSTEMS

    2014-4-18 · COMPARISON OF DELUGE AND WATER MIST SYSTEMS FROM A PERFORMANCE AND PRACTICAL POINT OF VIEW M. Lakkonen, D. Sprakel and A. Feltmann FOGTEC Fire Protection, Germany ABSTRACT Fixed fire fighting systems (FFFS) are a relatively new technology in tunnels that has been researched intensively in the recent years.

    Get Price
  • INFLUENCE OF ORIFICE NOZZLE GEOMETRY ON FLOW AND

    2015-3-3 · This project is focusing on the effect of different size of inlet diameter and the different injection pressure on an orifice nozzle on flow and spray characteristics. To complete this project, the actions are required: i. Study of different orifice nozzle geometry that related to the flow and spray characteristics. ii.

    Get Price
  • aerodynamics - How does the nozzle diameter affect the ...

    2021-8-3 · In general, the job of a nozzle is to match the pressure at jet engine exit to that outside it. If the pressure is different, it gets matched outside the engine, where it doesn't produce thrust. When the engine is a rocket, which creates high pressure, the nozzle needs to expand the gas, converting pressure to thrust through acting on the nozzle.

    Get Price
  • COMPARISON OF DELUGE AND WATER MIST SYSTEMS

    2014-4-18 · COMPARISON OF DELUGE AND WATER MIST SYSTEMS FROM A PERFORMANCE AND PRACTICAL POINT OF VIEW M. Lakkonen, D. Sprakel and A. Feltmann FOGTEC Fire Protection, Germany ABSTRACT Fixed fire fighting systems (FFFS) are a relatively new technology in tunnels that has been researched intensively in the recent years.

    Get Price
  • Effects of Geometry on the Flow Characteristics and ...

    2020-4-22 · nozzle with an expanded, parallel laser beam and projecting the resulting image on a screen. Standard texts such as Shapiro [11] explain the technique in more detail. The shadowgraphs were recorded with a 35 mm camera. Texturing Trials . In order to compare the performance of the various nozzles, we ran a series of texturing trials

    Get Price
  • A TOTAL LOOK AT OIL BURNER NOZZLES

    2018-6-11 · Effects of Pressure on Nozzle Performance . . . . . . . . . . 12 ... and an increase in droplet size. Type A nozzles produce a spray which delivers fine droplets outside the periphery of the main spray cone. These fine droplets greatly enhance ignition and create a stable flame for use with

    Get Price
  • Everything about nozzles with a different diameter - Prusa ...

    2018-6-7 · Let’s compare it to the default 0.4mm nozzle. Despite the fact that ‘Detect thin walls’ is enabled, parts of the letters can be lost during slicing. This won’t happen with a 0.25mm nozzle, so you can use it to print an unusual …

    Get Price
  • Comparison of the Influences of Surface Texture and ...

    Close attentions have been widely paid to the engineering textured and slip surfaces for improving bearing tribological performances. Comparison studies on the tribological characteristics of slip and textured surfaces are carried out in this work. The analysis results point out that the influences of surface texture and boundary slip on tribological performances of slider bearing are strongly ...

    Get Price
  • Rocket Nozzle Geometries - gatech.edu

    2018-12-24 · • Other effect of increasing nozzle angle ... Approx. Optimal Design Performance • Less divergence loss for full length bell vs. conical • 70% bell has nearly same divergence loss but shorter and ... Nozzle Length Comparison • Ideal bell nozzle is longest for

    Get Price
  • ACHIEVING EFFICIENCY IN ABRASIVE BLAST CLEANING jpcl

    2012-3-23 · size, while a significant problem was encountered with Nozzle A. Nozzle A exhibited intermittently discharging abrasive at the nozzle exit when the abrasive size was less than 0.5 mm. These results may be attributed to the relatively rapid converging angle (9.3 de-grees) of Nozzle A against that (7.8 degrees) of Nozzle B (Fig. 5 and Table 2).

    Get Price
  • Spray Nozzle Index - fluidproducts.com

    2021-8-17 · Pressure. Pressure has an inverse effect on droplet size. An increase in pressure will reduce the droplet size, whereas a reduction in pressure will increase the droplet size. Example: A 1 gpm flat spray nozzle has a larger droplet at 30 psi than at 60 psi. Similarly, a 10 gpm full cone nozzle has a smaller droplet size at 40 psi than at 10 psi.

    Get Price
  • Effects of Geometry on the Flow Characteristics and ...

    2020-4-22 · nozzle with an expanded, parallel laser beam and projecting the resulting image on a screen. Standard texts such as Shapiro [11] explain the technique in more detail. The shadowgraphs were recorded with a 35 mm camera. Texturing Trials . In order to compare the performance of the various nozzles, we ran a series of texturing trials

    Get Price
  • aerodynamics - How does the nozzle diameter affect the ...

    2021-8-3 · In general, the job of a nozzle is to match the pressure at jet engine exit to that outside it. If the pressure is different, it gets matched outside the engine, where it doesn't produce thrust. When the engine is a rocket, which creates high pressure, the nozzle needs to expand the gas, converting pressure to thrust through acting on the nozzle.

    Get Price
  • Modeling the Effect of Injector Nozzle-Hole Layout on ...

    2008-3-28 · Numerical simulations were used to study the effect of reduced nozzle-hole size and nozzle tip hole configuration on the combustion characteristics of a high speed direct injection diesel engine. The KIVA code coupled with the CHEMKIN chemistry solver was used for the calculations. The calculations were performed over wide ranges of equivalence ...

    Get Price
  • Everything about nozzles with a different diameter - Prusa ...

    2018-6-7 · Let’s compare it to the default 0.4mm nozzle. Despite the fact that ‘Detect thin walls’ is enabled, parts of the letters can be lost during slicing. This won’t happen with a 0.25mm nozzle, so you can use it to print an unusual …

    Get Price
  • ACHIEVING EFFICIENCY IN ABRASIVE BLAST CLEANING jpcl

    2012-3-23 · size, while a significant problem was encountered with Nozzle A. Nozzle A exhibited intermittently discharging abrasive at the nozzle exit when the abrasive size was less than 0.5 mm. These results may be attributed to the relatively rapid converging angle (9.3 de-grees) of Nozzle A against that (7.8 degrees) of Nozzle B (Fig. 5 and Table 2).

    Get Price
  • Spot size - Comco Inc

    2015-8-25 · Nozzle shape has a trickier relationship with spot size. Round nozzles are the workhorse nozzles. They suit most applications, and the spot size from a round nozzle tends to remain circular at any distance. However, the spot size from rectangular nozzles gradually opens into a circular blast pattern as the nozzle …

    Get Price
  • COMPARISON OF DELUGE AND WATER MIST SYSTEMS

    2014-4-18 · COMPARISON OF DELUGE AND WATER MIST SYSTEMS FROM A PERFORMANCE AND PRACTICAL POINT OF VIEW M. Lakkonen, D. Sprakel and A. Feltmann FOGTEC Fire Protection, Germany ABSTRACT Fixed fire fighting systems (FFFS) are a relatively new technology in tunnels that has been researched intensively in the recent years.

    Get Price
  • Rocket Nozzle Geometries - gatech.edu

    2018-12-24 · • Other effect of increasing nozzle angle ... Approx. Optimal Design Performance • Less divergence loss for full length bell vs. conical • 70% bell has nearly same divergence loss but shorter and ... Nozzle Length Comparison • Ideal bell nozzle is longest for

    Get Price
  • Spray Nozzle Index - fluidproducts.com

    2021-8-17 · Pressure. Pressure has an inverse effect on droplet size. An increase in pressure will reduce the droplet size, whereas a reduction in pressure will increase the droplet size. Example: A 1 gpm flat spray nozzle has a larger droplet at 30 psi than at 60 psi. Similarly, a 10 gpm full cone nozzle has a smaller droplet size at 40 psi than at 10 psi.

    Get Price
  • Reacting Nozzle Flow - MIT OpenCourseWare

    2020-12-31 · Reacting Nozzle Flow 14.1 Introduction As indicated in the introductory discussion of section 12.1, the actual expansion process in a rocket or ramjet nozzle is intermediate between the extremes of “frozen” and “equilibrium” flow, with the latter producing higher performance due

    Get Price
  • EFFECT OF DIFFERENT NOZZLES ON THE PERFORMANCE OF

    2019-4-21 · comparison with the direct nozzle. Both direct nozzle with acceptable maximum length and diverging nozzle of small length and high divergence angle improve the thrust of the engine. REFERENCES M. Ruhul Amin et al[11] made numerical investigations on the effects of nozzle geometry on the performance of a Pulse

    Get Price
  • Effect of bubble characteristics and nozzle size on the ...

    2019-4-24 · Smaller nozzle size is more useful to enhance permeate flux and postpone a sharp flux decline. The results are consistent with the inspection of membrane surface autopsy by SEM. It is observed that less crystal deposition with rougher crystal face occurs on the membrane surface when using the smaller nozzle size (2.2 mm) in the intermittent gas ...

    Get Price
  • Air-jet yarn texturing and its nozzles - Textile Today

    2015-3-1 · Being effectively cylindrical nozzles can be included in the same category although they have two inlet roles in comparison to the one inlet hole in the T1OO and the three inlet holes in the T341 and standard-core nozzles. The effect of the area ratio of the inlet holes to the main duct if closer the higher the velocities at the exit plane of ...

    Get Price
  • Effect of area ratio of the primary nozzle on steam ...

    Effect of area ratio of the primary nozzle on steam ejector performance considering nonequilibrium condensations Yan Yang a, Nikolas Karvounis b, Jens Honore Walther b, c, Hongbing Ding d, Chuang Wen a, b, * a Faculty of Engineering, University of Nottingham, Nottingham, NG7 2RD, United Kingdom b Department of Mechanical Engineering, Technical University of Denmark, Nils …

    Get Price
  • (PDF) Impact of Process Parameters and Nozzle Design on ...

    1.6.1 Principle of air-jet texturing The processes of air-jet texturing are illustrated schematically in figure 1; When overfed (V1 > V2) filaments enter the texturing nozzle, they are carried along through the nozzle, blown out from the texturing end, and are formed into loops which are mutually trapped in the yarn structure by the effect of ...

    Get Price
  • Effect of nozzle rotation angles and sizes on thermal ...

    2018-9-14 · The effect of the nozzle ratio area on the swirl anti-icing system’s performance to be discussed in the present work. The simulation results show that the hotspot temperature decreases by 26 % and the cold spot temperature increases by 18 %, as the nozzle to be rotated from 0o to 13o towards the inner skin.

    Get Price
  • (PDF) ANALYSIS OF THE EFFECT OF NOZZLE HOLE DIAMETER

    An experimental study was carried out to find out the effect of fuel injector nozzle hole diameter on diesel engine performance using Karanja oil- diesel blends. For this experimental setup a 5.97 KW single cylinder, water-cooled, direct injection

    Get Price
  • Size effect on gas flow in micro nozzles - IOPscience

    2005-9-20 · To analyze the size effect on the flow characteristics in the micro nozzle, further studies were done in nozzles with different scales keeping geometric similarity by numerical simulation. This guarantees the ratio of outlet area to throat …

    Get Price
  • Effect of Nozzle Selection and Spray Volume on Droplet ...

    Effect of Nozzle Selection and Spray Volume on Droplet Size and Efficacy of Engenia Tank-Mix Combinations Christopher J. Meyer, Jason K. Norsworthy, Greg R. Kruger, and Tom L. Barber* Sprayer applicator-controlled variables, such as nozzle selection and spray volume, will become

    Get Price
  • The Effect of Variable Nozzle Temperature and Cross ...

    2021-7-20 · Nozzle temperature is varied from 220 to 260 °C in 10 °C increments and 231 °C is found as optimum for highest tensile properties. Using the optimum nozzle temperature of 231 °C in the narrow section, and a higher temperature of 261 °C in the grip sections and transition areas moves the breakage location towards the specimen center.

    Get Price
  • Effects of Geometry on the Flow Characteristics and ...

    2020-4-22 · nozzle with an expanded, parallel laser beam and projecting the resulting image on a screen. Standard texts such as Shapiro [11] explain the technique in more detail. The shadowgraphs were recorded with a 35 mm camera. Texturing Trials . In order to compare the performance of the various nozzles, we ran a series of texturing trials

    Get Price
  • Size effect on gas flow in micro nozzles - IOPscience

    2005-9-20 · The performance of a micro propulsion system is determined primarily by the performance of the micro nozzles. A rectangular cross-section convergent–divergent micro nozzle, with a throat width of 20 µm and an expansion area ratio of 1.7, is fabricated and studied using experiment and numerical simulation.

    Get Price
  • Evaluation of the Predictive Capability of Diesel Nozzle ...

    2007-4-16 · Following the comparison with experiment, the effect of cavitation model assumptions, numerical implementation, discretisation scheme, model of turbulence grid resolution and cavitation physical sub-models on the predicted results on the nozzle discharge coefficient and hole exit %blockage are evaluated.

    Get Price
  • Reacting Nozzle Flow - MIT OpenCourseWare

    2020-12-31 · Reacting Nozzle Flow 14.1 Introduction As indicated in the introductory discussion of section 12.1, the actual expansion process in a rocket or ramjet nozzle is intermediate between the extremes of “frozen” and “equilibrium” flow, with the latter producing higher performance due

    Get Price
  • NOZZLES - UPM

    2021-1-2 · We do not consider too small nozzles, say with chamber size <10 mm and neck size <1 mm, where the effect of boundary layers become predominant. Restricting the analysis to isentropic flows, the minimum set of input parameters to define the propulsive properties of a nozzle (the thrust is the mass-flow-rate times the exit speed, F mv = e) are:

    Get Price
  • Aerospaceweb.org

    In an ideal nozzle that optimizes performance, the exit pressure (P exit) will be equal to the ambient pressure of the external atmosphere (P ¥). The flow in this case is perfectly expanded inside the nozzle and maximizes thrust. Unfortunately, this situation can only occur at one specific atmospheric pressure on a fixed-geometry nozzle.

    Get Price
  • Optimal Performance from Center Pivot Sprinkler Systems

    2010-11-20 · Optimal Performance from Center Pivot Sprinkler Systems ... following the manufacturer's nozzle size and pressure range recom-mendations. However, ... Sprinkler deflection plate configuration has a large effect on the sprinkler application rate pattern. In general, smooth deflection plates

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  • 11.6 Performance of Jet Engines - MIT

    2010-10-10 · 11. 6. 2 Ideal Assumptions. Inlet/Diffuser: , (adiabatic, isentropic) Compressor or fan: , . Combustor/burner or afterburner: , Turbine: Nozzle: , . 11. 6. 3 Ideal Ramjet . To get started with a simple example (no turbomachinery), we will reexamine the ideal ramjet, picking up where we left off in Section 3.7.3. (Note that we will continue to use station 5 as the exit station, consistent …

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  • A comparison of existing standards for testing blast ...

    2016-9-28 · A comparison of existing standards for testing blast resistant glazing and windows DECEMBER 2014 ... explosion effects Report EUR 27133 EN . European Commission ... performance'of'the'blastSresistantglazing'has'to'be'validated'by'testing'basedonthe'requirements.'

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  • BJNANO - Friction reduction through biologically inspired ...

    2018-9-26 · Size effect under dry sliding. When testing the tribological performance of round dimples created by laser surface texturing, considerable size effects for dry and lubricated experiments, as well as for static and dynamic friction were …

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