Modelling of the Parameters of Air-Flow in Pneumatic Nozzles for Linking Staple and Filament Yarns. Part I. Determining of the Volume Flow and Local Speeds of Air-Flow
Research and development
Authors:
- Dopierała Halina
Textile Research Institute, Łódź, Poland - Radom Czesław (j/w)
- Swaczyna Paweł (j/w)
- Zawadzki Leszek
Department of Textile Machines Mechanics, Faculty of Material Technologies and Textile Design, Technical University of Łódź, Łódź, Poland
 Full text | Abstract: This article presents the results of different solutions of pneumatic nozzles for linking yarns manufactured from staple and filament fibres. The research focused on determining the influence of the construction design of pneumatic nozzles on forming the stream of outflowing air. The investigations included an analysis of the construction design of interlacing nozzles with regard to their internal structure (divided into two groups depending on structural features: symmetrical and asymmetrical), an analysis of air-flow parameters, such as the local speeds of the air stream flowing out of the nozzle, measured at different points of the outlet planes of the yarn interlacing duct, the volume of air-flow, which were measured at specially prepared experimental stands, and estimation of the methods applied. The article also presents a hypothesis of air-flow in symmetrical nozzles, elaborated on the basis of experimental results. |
Tags: pneumatic nozzle, air-flow parameters, pneumatic linking, filament yarns.
Citation: Dopierała H., Radom C., Swaczyna P., Zawadzki L.; Modelling of the Parameters of Air-Flow in Different Construction Designs of Pneumatic Nozzles for Linking Staple and Filament Yarns. Part I. Determining of the Volume Flow and Local Speeds of Air-Flow. FIBRES & TEXTILES in Eastern Europe 2011, Vol. 19, No. 3 (86) pp. 30-36.