scholarly journals An Investigation of Air Consumption of Air-Jet Loom

2021 ◽  
Vol 11 (1) ◽  
pp. 1-14
Author(s):  
Mohammad Mobarak Hossain ◽  
Habiba Alaya Suchona ◽  
Mst Tanzina Nasrin ◽  
Imran Hossain
Keyword(s):  
Air Jet ◽  
Air Jet Loom

Research on the response characteristics of solenoid valve of the air-jet loom by simulation

2013 ◽  
Vol 22 (6) ◽  
pp. 606-612 ◽  
Author(s):  
Yuzhen Jin ◽  
Ruoyu Deng ◽  
Yingzi Jin ◽  
Xudong Hu
Keyword(s):  
Solenoid Valve ◽  
Response Characteristics ◽  
Air Jet ◽  
Air Jet Loom

scholarly journals Air Stream ejected from Sub-nozzles of Air Jet Loom

1996 ◽  
Vol 42 (3-4) ◽  
pp. 80-85 ◽  
Author(s):  
Ryuji Shintani ◽  
Ikuei Donjou ◽  
Kazuhide Chikaoka ◽  
Atsushi Okajima
Keyword(s):  
Air Jet ◽  
Air Stream ◽  
Air Jet Loom

Investigation into the Fabric Handle which Weaved on Air-Jet Loom by Bundle Yarn Filling Insertion Technology

2013 ◽  
Vol 821-822 ◽  
pp. 360-364
Author(s):  
Yi Weng ◽  
Hong Jun Cui
Keyword(s):  
Bending Properties ◽  
Air Jet ◽  
Fabric Handle ◽  
Air Jet Loom

Aimed to investigate the fabric handle which weaved with bundle yarn filling insertion technology, the properties of interlace resistance, flatness, friction, bending and compressing are tested. And 2 fabrics with the same size which weaved by different weaving methods on air-jet loom are analyzed contrastively. The result shows that the double wefts satin fabric which weaved with bundle yarn filling insertion technology had the adjacent interweave resistance, touched more flat and stiff compared to which weaved by traditional weaving technique. It was smoother and had better bending properties at warp orientation. But along weft orientation, it was rougher and had less bending properties.

Analysis of the characteristics of air–yarn coupling movement in the profiled reed groove of an air-jet loom

2021 ◽  
pp. 004051752110569
Author(s):  
Yuzhen Jin ◽  
Hailang Xiong ◽  
Jingyu Cui
Keyword(s):  
Numerical Results ◽  
Weft Yarn ◽  
Valuable Insight ◽  
Arbitrary Lagrangian Eulerian ◽  
Air Jet ◽  
Gap Ratio ◽  
Gas Consumption ◽  
Simulation Results ◽  
Gas Leaks ◽  
Air Jet Loom

The movement characteristics of yarn in the profiled reed groove of an air-jet loom can have a great impact on the performance of the fabric. Unstable yarn movement tends to lead to weft defects, as short wefts or weft breaks may occur, which could deteriorate the quality of the final fabric. In this paper, the characteristics of the yarn movement in a profiled reed groove are numerically studied. The arbitrary Lagrangian–Eulerian method is used to solve the two-way airflow–yarn interaction and the yarn is simulated with the ball–socket model. A fluctuation ratio is defined to characterize the unsteadiness of the yarn movement. Our simulation first investigates the effect of the gap ratio of the profiled reed groove (β) on the yarn movement then compares the movements of different yarn kinds. The simulation results indicate that a larger β not only decreases gas leaks (thus saves gas consumption), but also stabilizes the yarn movement. Our simulation results also show that the movement of the yarn of polypropylene is more stable than the other two weft-yarn materials. An experiment is also conducted to validate our numerical results, which shows a favorable agreement between them. Our numerical results of the yarn movement in the profiled reed groove can provide a valuable insight into the optimization of the weft insertion system of the air-jet loom.

Optimization of fluid characteristics in the main nozzle of an air-jet loom

2021 ◽  
pp. 004051752110395
Author(s):  
Xinlei Huang ◽  
Lee Michael Clemon ◽  
Mohammad Saidul Islam ◽  
Suvash C. Saha
Keyword(s):  
Fluid Dynamic ◽  
Three Dimensional ◽  
Sudden Expansion ◽  
Dynamic Features ◽  
Original Design ◽  
Flow Models ◽  
Air Jet ◽  
Acceleration Tube ◽  
Air Jet Loom ◽  
Fluid Characteristics

As part of the propulsion system, the fluid dynamic features of the main nozzle can immediately affect the stability and efficiency of an air-jet loom. This study aims to optimize the fluid characteristics in the main nozzle of an air-jet loom. To investigate ways of weakening the effect of airflow congestion and backflow phenomenon occurring in the sudden expansion region, the computational fluid dynamics method is employed. Three-dimensional turbulence flow models for a regular main nozzle and 12 prototypes with different nozzle core tip geometry are built, simulated, and analyzed to get the optimum performance. Furthermore, a set of modified equations that consider the direction of airflow are proposed for better estimation of the friction force applied by the nozzle. The result shows that the nozzle core tip's geometry has a significant influence on the internal airflow, affecting the acceleration tube airflow velocity, turbulence intensity, and backflow strength of the sudden expansion region, and other critical fluid characteristics as well. Several proposed models have succeeded in reducing the backflow and outperforming the original design in many different aspects. Models A-60 and C-P, in particular, manage to increase the propulsion force by 37.6% and 20.2% in the acceleration tube while reducing the maximum backflow by 57.1% and 52.2%, respectively. These simulation results can provide invaluable information for the future optimization of the main nozzle.

Flow Characteristics of the Main Nozzle in an Air-Jet Loom

1994 ◽  
Vol 64 (2) ◽  
pp. 88-100 ◽  
Author(s):  
Minoru Ishida ◽  
Atsushi Okajima
Keyword(s):  
Flow Characteristics ◽  
Air Jet ◽  
Air Jet Loom

Statistical Model for Predicting Compressed Air Consumption on Air-Jet Looms

2014 ◽  
Vol 9 (3) ◽  
pp. 155892501400900 ◽  
Author(s):  
Abdul Jabbar ◽  
Shakeel Ahmed ◽  
Tanveer Hussain ◽  
Noman Haleem ◽  
Faheem Ahmed
Keyword(s):  
Statistical Model ◽  
Compressed Air ◽  
Dominant Factor ◽  
Weft Yarn ◽  
Prediction Ability ◽  
Textile Fabrics ◽  
Air Jet ◽  
Consumption Values ◽  
Yarn Count ◽  
Air Jet Loom

Compressed air is a major component of energy costs incurred in the weaving of textile fabrics on air-jet looms. The consumption of compressed air in air-jet weaving depends on different process variables. In this study, the effect of weft yarn count, reed count, fabric width and loom speed on the compressed air consumption of air-jet loom was determined using response surface methodology. Fabric width was found to be the most dominant factor affecting the air consumption followed by loom speed, reed count, and weft yarn count respectively. A statistical model for predicting the compressed air consumption on air-jet loom was developed. The prediction ability and accuracy of the developed model was assessed by the fitted line plot between the predicted and actual air consumption values. The prediction model may be used for optimizing the production planning, estimating the share of compressed air cost in weaving a particular fabric style, and in identifying any air wastages in the weaving shed by comparing the actual compressed air consumption with that predicted by the model which was developed under controlled conditions without any air leakages.

scholarly journals A Study on an Air-Jet Loom with Substreams Added

1972 ◽  
Vol 18 (2) ◽  
pp. 37-44 ◽  
Author(s):  
Minoru Uno
Keyword(s):  
Air Jet ◽  
Air Jet Loom
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