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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 ...
Get Price2016-8-30 · 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.
Get Price2016-7-20 · Indian Journal of Fibre & Textile Research 'Vol. 15, December 1990, pp. 154-158 Air-jet texturing of twisted filament yarns using new jets: Part I-Influence of twist levels and direction of twist on the properties of air-jet textured yarns A K Sengupta, V K Kothari & J Srinivasan
Get PriceLoop and entanglement formation is complete; textured yarn is transported at right angles to the direction of airflow by the take-up rollers to a region which is outside the influence of the primary air jet. ... Demir, A., Acar, M., and Turton, R. K., Air Flow in Nozzles, This synthesis of available information from our research …
Get Price2009-2-9 · includes atomization, vaporization and air entrainment into the jet. A growing vapor phase develops around the spray that eventually forms the so called head vortex. The auto ignition phase ranges from 3° - 5° ASI. Using chemiluminescence the start …
Get Price2002-6-1 · Simulation results indicate that texturing is enhanced when the cross-sectional area of the inlet hole reaches 1/4, or when the ratio of the length over diameter (L/D) of the yarn channel is ...
Get Price2021-1-25 · The jet length was calculated from the fuel jet in R4 (commonly used for straight nozzles and needle nozzles), which is a 2 mm wide and 13 mm long region as shown in Fig. 4. The jet length represents the primary breakup length of the fuel jet outside of the nozzle.
Get PriceFor all nozzles, complete atomisation of the liquid stream was strongly suggested by the production of individual particles.If correlating the particle size to the design of the nozzle, the size of the liquid inlet (D liquid ) seems of major impor-tance in two-fluid nozzles as particles produced with CD+ and CDÀ nozzles were much smaller than ...
Get Price2020-4-1 · Typical open jet air gauge consists of an inlet nozzle and a measuring nozzle connected with the measurement chamber, where back-pressure is measured , . Fig. 1 presents the drawing of physical model of such an air gauge that was used in the experimental research.. Download : Download high-res image (469KB) Download : Download full-size image Fig. 1
Get Price25 mm, 50 mm and 75 mm at each of the edges, as. well as the centre of the atomizer exit for the 0.033, 0.045 and 0.188 kg/s corresponding to 4.8, 6.0 and 10. MPa, respectively or 696.2 psi, 870.2 ...
Get Price2015-3-1 · 1. Introduction. Air-jet texturing is one of the most versatile methods known to convert flat syntheticfilament yarns to textured yarns. Over the years, developments in air jet texturing have been related to the developments in nozzle design. With this development yarns from finer denier to extremely coarse denier can be textured.
Get PriceAs an important actuator of the dual parallel jet, the porous nozzle has some non-structural parameters (such as inlet pressure, nozzle spacing ratio, etc.) which have a significant influence on energy transport, chemical combustion and pollutant generation. The research on the microfluidic state of the porous nozzle dual parallel jet, however, remains insufficient because of its microjet ...
Get Price2017-8-1 · 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.
Get PriceThe influence of pulsing air injection nozzle on the performance of a pulse-jet bag filter was examined. • A dual-slit injector was proposed and compared to two other nozzles. • The dual-slit injector exhibited superior filter cleaning efficiency and lower dust emission. • The dual-slit injector can work well under relatively low pulsing ...
Get Price2017-12-1 · 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 ...
Get PriceResearch on cleaning efficiency of high pressure micro jet - Influence of different shape nozzles in cleaning efficiency. Keiji Miyachi, Syuhei Kurokawa, Sayuri Kawashima, Hiroki Akenaga, Yoshiyuki Seike, Yoshinori Kobayashi, Osamu Ohnishi, Toshiro Doi. Manufacturing Process;
Get PriceKeywords — jet nozzles, Supersonic flows, fluid dynamics, solid works, CFD analysis. ... selecting a fluid and a achieved by passing ventilating air around the jet pipe, or by solid and settings of wall condition and initial and ambient lagging the section of the exhaust system with an insulating conditions. ... the complete jet pipe is ...
Get Price2021-1-1 · High-pressure nozzles for cleaning applications have a cone-capillary geometry and generate a turbulent water jet. It is known from the literature that cone-capillary nozzles have a higher discharge coefficient and therefore deliver a higher energy per unit time ( Begenir et al., 2004 ).
Get PriceImpinging jets are often used in industry to dry, cool, or heat items. In this work, a two-dimensional Computational Fluid Dynamics model is created to model an impingement jet dryer with a total of 9 pairs of nozzles that dries sheets of metal. Different methods to model the evaporation rate are studied, as well as the influence of recirculating the outlet air.
Get PriceFor all nozzles, complete atomisation of the liquid stream was strongly suggested by the production of individual particles.If correlating the particle size to the design of the nozzle, the size of the liquid inlet (D liquid ) seems of major impor-tance in two-fluid nozzles as particles produced with CD+ and CDÀ nozzles were much smaller than ...
Get Price2020-8-6 · NASA TECHNDCAL MEMORANDUM NASA TM X- 68064 s I- 4 v) {NASA-T3-X-68064) ICc z EHIISSIONS J. Grobman (NASA) 7972 CSCL 17 p 21E N7 2-2483C: REVIEW OF JZT ENGINE Unclas 63/28 29831 REVIEW OF JET ENGINE EMISSIONS by Jack Grobman Lewis Research Center Cleveland, Ohio TECHNICAL PAPER presented at the Department af 8 Transpordion Survey …
Get Price2016-12-11 · experimental study of traversing hot-jet ignition of lean hydrocarbon-air mixtures in a constant-volume combustor a thesis submitted to the faculty
Get Price2020-6-18 · The study also investigated the use of Coanda nozzles on the peripheral region of the craft, and found them to be less efficient than straight nozzles with similar ... complete this research. I would also like to express my sincere gratitude to Dr. Reeder ... Figure 9: Coanda effect: entrainment of air into the jet and jet deflection towards ...
Get Price2020-9-3 · Group hole nozzles, discussed later, are an interesting development and can also help maintain jet penetration from smaller nozzle holes while providing enhanced air entrainment. As was the case with maintaining injection rate with smaller hole size, penetration decreases with nozzle …
Get PriceHence higher CO emissions were found to be more with larger size hole injector. Increasing the number of holes in the injector resulted in decreased HC. That could be attributed to improved mixing of liquid fuel and the surrounding air inside the combustion chamber with a larger size hole injector and hence resulting in complete combustion.
Get Price2016-8-1 · Air-jet sieving was found to be inadequate to determine the dust content (Wenderdel et al. 2014) and consequently inadequate for fiber analysis. In the early stages of electronic data processing, Quirk ( 1981 ), Micko et al. ( 1982 ) and Myers ( 1983 ) began measuring fiber sizes with a handheld cursor on the basis of dry-scattered, optically ...
Get Price2016-11-1 · Air entrainment into the spray can be increased and engine-out soot emissions reduced by using high injection pressures while suppressing cavitation inside the nozzle, according to experiments performed with injection pressures of up to 3200 bar and injector nozzles with a k-factor of 2 and 25% hydro-grinding [1].
Get Price2020-8-5 · This paper mainly focuses on determination of optimum minimum quantity lubrication (MQL) parameter settings due to enhance the machinability of Ti–6Al–4V alloy, which is an area of huge concern for industrial production and academic research around the globe. MQL is an eco-friendly cooling method, which can be employed during machining Ti–6Al–4V alloys. In this work, a highly efficient ...
Get Price2020-8-6 · January 1992 Final Report for Period May 1990 through October 1991 AEDC·TR·91·20 Acoustic Interactions Between an Altitude Test Facility and Jet Engine Plumes Theory and Exp
Get PriceIn additional to a critical review of relevant research reported in literature, basic oxygen steelmaking (BOS)-slag-related research conducted by the present authors, including slag formation, in situ observation of high-temperature slag behavior, transient …
Get Price2015-3-1 · 1. Introduction. Air-jet texturing is one of the most versatile methods known to convert flat syntheticfilament yarns to textured yarns. Over the years, developments in air jet texturing have been related to the developments in nozzle design. With this development yarns from finer denier to extremely coarse denier can be textured.
Get PriceAs an important actuator of the dual parallel jet, the porous nozzle has some non-structural parameters (such as inlet pressure, nozzle spacing ratio, etc.) which have a significant influence on energy transport, chemical combustion and pollutant generation. The research on the microfluidic state of the porous nozzle dual parallel jet, however, remains insufficient because of its microjet ...
Get Price2017-8-1 · 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.
Get PriceThe influence of pulsing air injection nozzle on the performance of a pulse-jet bag filter was examined. • A dual-slit injector was proposed and compared to two other nozzles. • The dual-slit injector exhibited superior filter cleaning efficiency and lower dust emission. • The dual-slit injector can work well under relatively low pulsing ...
Get Price2017-12-1 · 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 ...
Get PriceResearch on cleaning efficiency of high pressure micro jet - Influence of different shape nozzles in cleaning efficiency. Keiji Miyachi, Syuhei Kurokawa, Sayuri Kawashima, Hiroki Akenaga, Yoshiyuki Seike, Yoshinori Kobayashi, Osamu Ohnishi, Toshiro Doi. Manufacturing Process;
Get PriceKeywords — jet nozzles, Supersonic flows, fluid dynamics, solid works, CFD analysis. ... selecting a fluid and a achieved by passing ventilating air around the jet pipe, or by solid and settings of wall condition and initial and ambient lagging the section of the exhaust system with an insulating conditions. ... the complete jet pipe is ...
Get Price2021-1-1 · High-pressure nozzles for cleaning applications have a cone-capillary geometry and generate a turbulent water jet. It is known from the literature that cone-capillary nozzles have a higher discharge coefficient and therefore deliver a higher energy per unit time ( Begenir et al., 2004 ).
Get PriceImpinging jets are often used in industry to dry, cool, or heat items. In this work, a two-dimensional Computational Fluid Dynamics model is created to model an impingement jet dryer with a total of 9 pairs of nozzles that dries sheets of metal. Different methods to model the evaporation rate are studied, as well as the influence of recirculating the outlet air.
Get PriceFor all nozzles, complete atomisation of the liquid stream was strongly suggested by the production of individual particles.If correlating the particle size to the design of the nozzle, the size of the liquid inlet (D liquid ) seems of major impor-tance in two-fluid nozzles as particles produced with CD+ and CDÀ nozzles were much smaller than ...
Get PriceSubaru's EE20 engine was a 2.0-litre horizontally-opposed (or 'boxer') four-cylinder turbo-diesel engine. For Australia, the EE20 diesel engine was first offered in the Subaru BR Outback in 2009 and subsequently powered the Subaru SH Forester, SJ Forester and BS Outback.The EE20 diesel engine underwent substantial changes in 2014 to comply with Euro 6 emissions standards – these changes …
Get Price2021-8-23 · Explore the NASA STI Repository (NTRS) The NASA STI Program manages a world-class collection of aerospace-related citations, full-text online documents, images, and videos created or funded by NASA. search Search Search the STI Repository to access scientific and technical information (STI) created or funded by NASA. public PubSpace NASA’s publication repository providing easy public …
Get Price2011-5-13 · /P Influence on Wall Jet Deflection • • . • . 49 10a -TCo~da Jet W411 Jet tZ L11 - Wall Jet Height/Cormer Radius Influence on Wall Jet Deflection . . 43 12 -Corner and Radius Wall Jet Aspect Ratio Influence on Wall Jet Deflection 45 71
Get Price2021-2-10 · Influence of upstream disturbances on performance of an LDV-based cryogenic flow meter standard – CFD modelling and preliminary measurements with air Flow Measurement and Instrumentation, Vol. 80 Heat transfer characteristics of laminar and turbulent wavy channel flow in the presence of a stationary or rotating blade
Get PriceSwitch to 'low-drift' nozzles when buying new ones. Keep more than one size and type of nozzle on the boom ready to switch when the need arises. Consider using air-assisted or electrostatic sprayers, which were developed for drift reduction. Use nozzles with a wider spray angle so you can keep the boom closer to the spray target.
Get Price2020-1-1 · The Fogger misting nozzle, at 12 L·h −1, without antidrip, produces a full conical jet, resulting in the highest performance of the three types of nozzles tested. The performance of this nozzle may have been superior to the others because of the fine …
Get Price2010-6-1 · (Page 1) Despite the prevalence of pressure vessels in the chemical process industries (CPI), a clear understanding of the basis-of-design responsibilities involved in designing, fabricating and repairing such a device remains elusive. Vessel users are …
Get Price2016-4-4 · Microset TM silicone elastomer was injected via the two nozzles (C), until the riser tubes (B) were both approximately half filled with elastomer. The filler holes were plugged and the casting box transferred to a compressed air pressure vessel and allowed to cure for 24 h at approximately 50 psi.
Get PriceDissertations & Theses from 2019. Krishnan, Ankita (2019) Understanding Autism Spectrum Disorder Through a Cultural Lens: Perspectives, Stigma, and Cultural Values among Asians . Suzuki, Takakuni (2019) Quantifying the Relations among Neurophysiological Responses, Dimensional Psychopathology, and Personality Traits . Dissertations & Theses from 2018. Abdel-Salam, Ahmed Nabil (2018) …
Get Price2016-2-28 · Piezoelectric material is one of the common smart materials utilized for harvesting vibration energy. This paper presents an experimental study of a rain energy harvester using a piezoelectric beam tested under different rain conditions. A spray-type rain simulator is developed to simulate actual rain by using three nozzles.
Get Price2014-8-3 · Pulsed beams, originating from a high pressure, fast acting valve equipped with a shaped nozzle, can now be generated at high repetition rates and with moderate vacuum pumping speeds. The high intensity beams are discussed, together with the …
Get Price2015-3-1 · 1. Introduction. Air-jet texturing is one of the most versatile methods known to convert flat syntheticfilament yarns to textured yarns. Over the years, developments in air jet texturing have been related to the developments in nozzle design. With this development yarns from finer denier to extremely coarse denier can be textured.
Get PriceAs an important actuator of the dual parallel jet, the porous nozzle has some non-structural parameters (such as inlet pressure, nozzle spacing ratio, etc.) which have a significant influence on energy transport, chemical combustion and pollutant generation. The research on the microfluidic state of the porous nozzle dual parallel jet, however, remains insufficient because of its microjet ...
Get Price2017-8-1 · 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.
Get PriceThe influence of pulsing air injection nozzle on the performance of a pulse-jet bag filter was examined. • A dual-slit injector was proposed and compared to two other nozzles. • The dual-slit injector exhibited superior filter cleaning efficiency and lower dust emission. • The dual-slit injector can work well under relatively low pulsing ...
Get Price2017-12-1 · 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 ...
Get PriceResearch on cleaning efficiency of high pressure micro jet - Influence of different shape nozzles in cleaning efficiency. Keiji Miyachi, Syuhei Kurokawa, Sayuri Kawashima, Hiroki Akenaga, Yoshiyuki Seike, Yoshinori Kobayashi, Osamu Ohnishi, Toshiro Doi. Manufacturing Process;
Get PriceKeywords — jet nozzles, Supersonic flows, fluid dynamics, solid works, CFD analysis. ... selecting a fluid and a achieved by passing ventilating air around the jet pipe, or by solid and settings of wall condition and initial and ambient lagging the section of the exhaust system with an insulating conditions. ... the complete jet pipe is ...
Get Price2021-1-1 · High-pressure nozzles for cleaning applications have a cone-capillary geometry and generate a turbulent water jet. It is known from the literature that cone-capillary nozzles have a higher discharge coefficient and therefore deliver a higher energy per unit time ( Begenir et al., 2004 ).
Get PriceImpinging jets are often used in industry to dry, cool, or heat items. In this work, a two-dimensional Computational Fluid Dynamics model is created to model an impingement jet dryer with a total of 9 pairs of nozzles that dries sheets of metal. Different methods to model the evaporation rate are studied, as well as the influence of recirculating the outlet air.
Get PriceFor all nozzles, complete atomisation of the liquid stream was strongly suggested by the production of individual particles.If correlating the particle size to the design of the nozzle, the size of the liquid inlet (D liquid ) seems of major impor-tance in two-fluid nozzles as particles produced with CD+ and CDÀ nozzles were much smaller than ...
Get PriceSpray Equipment and Calibration. (AE73, Revised March 2018) Download PDF. Many pesticides used to control weeds, insects, and disease in field crops, ornamentals, turf, fruits, vegetables, and rights-of-way are applied with hydraulic sprayers. Tractor- mounted, pull-type, pickup-mounted and self-propelled sprayers are available from numerous ...
Get Price2016-4-4 · Microset TM silicone elastomer was injected via the two nozzles (C), until the riser tubes (B) were both approximately half filled with elastomer. The filler holes were plugged and the casting box transferred to a compressed air pressure vessel and allowed to cure for 24 h at approximately 50 psi.
Get PriceInjection is accomplished using pressure nozzles that produce an atomized cone spray of fine droplets. The droplets evaporate and the resultant vapour mixes with the air to form a combustible mixture. The shear layer created between the two counter-rotating streams helps mix the fuel vapour supplied by the evaporating droplets with the air.
Get Price2021-2-10 · Influence of upstream disturbances on performance of an LDV-based cryogenic flow meter standard – CFD modelling and preliminary measurements with air Flow Measurement and Instrumentation, Vol. 80 Heat transfer characteristics of laminar and turbulent wavy channel flow in the presence of a stationary or rotating blade
Get Price2016-2-28 · Piezoelectric material is one of the common smart materials utilized for harvesting vibration energy. This paper presents an experimental study of a rain energy harvester using a piezoelectric beam tested under different rain conditions. A spray-type rain simulator is developed to simulate actual rain by using three nozzles.
Get PriceDissertations & Theses from 2019. Krishnan, Ankita (2019) Understanding Autism Spectrum Disorder Through a Cultural Lens: Perspectives, Stigma, and Cultural Values among Asians . Suzuki, Takakuni (2019) Quantifying the Relations among Neurophysiological Responses, Dimensional Psychopathology, and Personality Traits . Dissertations & Theses from 2018. Abdel-Salam, Ahmed Nabil (2018) …
Get Price2016-6-2 · This paper focuses on the study of influence of ultrasound on liquid atomization using ejection nozzles. Two principles of influence of ultrasound on the atomization process such as a change of conditions on gas-liquid boundary during the generation of ultrasound oscillation in the gas and liquid jet (film) disintegration under the action of ...
Get PriceAll papers published in this volume of IOP Conference Series: Materials Science and Engineering have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of …
Get Price2018-11-8 · R.A.E. half-model conventional-balance rig with air connectors I R.A.E. complete-model conventional-balance rig with simple flexible connectors 2 Air-bearing connectors for R.A.E. virtual-centre balance rig 3a,b Composite-model rig for R.A.E. virtual-centre balance 4 R.A.E. subsonic-transport jet-nacelle research model 5a,b
Get Price2021-3-7 · (Re) including different jet to impingement surface distance and various range of Reynolds number. Larion et al. [9] experimentally analyzed multi-channel swirling air impinging jets heat transfer rate and uniformity on a flat plate. They were concerned about the influence …
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