203 Effect of Mean Particle Diameter on Pneumatic Conveying Characteristics of Suction Nozzle with Injection Pipe

2012 ◽  
Vol 2012.65 (0) ◽  
pp. 47-48
Author(s):  
Takaaki OSHIMA ◽  
Hiroshi KOUGUCHI ◽  
Minoru FUKUHARA ◽  
Hiroshi KATANODA ◽  
Hirokazu YAMAGUCHI
Keyword(s):  
Particle Diameter ◽  
Pneumatic Conveying ◽  
Suction Nozzle ◽  
Mean Particle Diameter

616 Effect of Particle Diameter on Pneumatic Conveying Characteristics of Suction Nozzle with Injection Pipe : 1st Report, In the case without Nozzle Depth

2014 ◽  
Vol 2014.67 (0) ◽  
pp. _616-1_-_616-2_
Author(s):  
Takahiro YANO ◽  
Hiroshi KOUGUCHI ◽  
Minoru FUKUHARA ◽  
Hiroshi KATANODA ◽  
Koki MORIYAMA
Keyword(s):  
Particle Diameter ◽  
Pneumatic Conveying ◽  
Suction Nozzle

scholarly journals 624 Effect of Particle Diameter on Pneumatic Conveying Characteristics of Suction Nozzle with Injection Pipe : 2nd Report, In the case with Nozzle Depth

2014 ◽  
Vol 2014.67 (0) ◽  
pp. _624-1_-_624-2_
Author(s):  
Takahiro YANO ◽  
Hiroshi KOUGUCHI ◽  
Minoru FUKUHARA ◽  
Hiroshi KATANODA ◽  
Koki MORIYAMA
Keyword(s):  
Particle Diameter ◽  
Pneumatic Conveying ◽  
Suction Nozzle

scholarly journals Effect of Particle Diameter on Pneumatic Conveying Characteristics of Suction Nozzle with Injection Pipe

2017 ◽  
Vol 54 (4) ◽  
pp. 210-217
Author(s):  
Minoru Fukuhara ◽  
Hiroshi Kouguchi ◽  
Tatsuya Tanaka ◽  
Hiroki Mine ◽  
Kouriki Hayashida ◽  
...  
Keyword(s):  
Particle Diameter ◽  
Pneumatic Conveying ◽  
Suction Nozzle

Preparation and Evaluation of Chitosan Loaded Naproxen Nanoparticles by Emulsion Interfacial Reaction Method

2019 ◽  
Vol 9 (2) ◽  
pp. 89-96
Author(s):  
Abbaraju Krishna Sailaja ◽  
Juveria Banu
Keyword(s):  
Drug Release ◽  
Interfacial Reaction ◽  
Polymer Concentration ◽  
Chitosan Nanoparticles ◽  
Particle Diameter ◽  
Entrapment Efficiency ◽  
Reaction Method ◽  
Release Data ◽  
Mean Particle Diameter

Aim: The aim of this investigation was to develop and characterize naproxen loaded chitosan nanoparticles by emulsion interfacial reaction method. Methodology: For emulsion interfacial reaction method chitosan was used as a polymer. In this method, eight formulations were prepared by varying drug to polymer concentration. Discussion: Out of eight formulations prepared using emulsion interfacial reaction method EI8 formulation was found to be the best formulation. The drug content was observed as 94.4%, entrapment efficiency and loading capacity were found to be 87.5% and 75%, respectively. The mean particle diameter was measured as 324.6nm and the Zeta potential value was found to be -42.4mv. In vitro drug release data showed 97.2% of drug release rate sustained up to 12hrs. Conclusion: The results clearly reveal that EI8 formulation having the highest amount of drug was considered as the best formulation because of its small mean particle diameter, good entrapment efficiency, and stability.

scholarly journals Considerations over the floating speed of a particle in vacuum pneumatic conveying sytems in flour milling

2016 ◽  
Vol 20 (1) ◽  
pp. 65-76
Author(s):  
Tanase Tanase
Keyword(s):  
Spherical Particle ◽  
Particle Diameter ◽  
Pipe Diameter ◽  
Pneumatic Conveying ◽  
Specific Mass ◽  
Magnus Force ◽  
Spherical Form ◽  
Flour Milling ◽  
Mass Load ◽  
The Given

Abstract The present paper is a theoretical study aiming for to assess the influence of the different factors such as deviation from the spherical form of a particle, specific mass load of the pneumatic conveying pipe and the report between the particle diameter and the pipe diameter, over the floating speed of a particle. For a non-spherical particle, the Magnus force is affecting the floating speed of the given particle by increasing or decreasing it. The equation deducted within the present study, describes the movement of a particle or a fluid swirl under the resultant force with emphasis on the evaluation of the nature and magnitude of the Magnus force. The same Magnus Force explains the movement of the swirls in fluids, as for the wind swirls (hurricane) or water swirls. The next part of the study relate the report between the particle diameter and the pipe diameter as well as the specific loads of the pipe, to the same floating speed. A differentiation in denominating the floating speed is proposed as well as that for the non-spherical particle the floating speed should be a domain, rather than a single value.

Prediction of the deflagration index for organic dusts as a function of the mean particle diameter

2017 ◽  
Vol 50 ◽  
pp. 67-74 ◽  
Author(s):  
Anna Fumagalli ◽  
Marco Derudi ◽  
Renato Rota ◽  
Jef Snoeys ◽  
Sabrina Copelli
Keyword(s):  
Particle Diameter ◽  
Deflagration Index ◽  
The Mean ◽  
Mean Particle Diameter

Influence of nucleating agent type on the morphology of extruded polyetherimide foam for printed circuit boards*

2019 ◽  
Vol 56 (3) ◽  
pp. 317-341 ◽  
Author(s):  
Clemens Keilholz ◽  
Daniel Raps ◽  
Thomas Köppl ◽  
Volker Altstädt
Keyword(s):  
Surface Tension ◽  
Printed Circuit Boards ◽  
Particle Diameter ◽  
Nucleating Agent ◽  
Nucleating Agents ◽  
Circuit Boards ◽  
Printed Circuit ◽  
Foam Morphology ◽  
The Mean ◽  
Mean Particle Diameter

This work focuses on the development of foamed high temperature thermoplastic substrates for printed circuit boards. For this application it is necessary to achieve mean cell diameters smaller than 30 µm in order to be able to realize vias and high packaging densities (miniaturization). Different additives as nucleating agents, namely macro- and micro-crystalline talc, silica, calcium carbonate, and wollastonite, were melt-compounded with polyetherimide using a twin-screw extruder. Foamed samples are prepared by foam extrusion using a slit die and CO2 as physical blowing agent. The aim of this study is to analyze the influence of the mean particle size and the particle surface tension on the mean cell diameters. Therefore, the shape of the additives, the foam morphology, and the elongational viscosity were considered. The additives with a suitable particle size and surface tension exhibit a positive influence on the foam morphology, resulting in smaller cell diameters (<30 µm), a narrower cell size distribution and a foam density lower than 900 kg/m3. If the mean particle diameter of the nucleating agents is lower than 0.6 µm in this study, no nucleation effect could be observed. This is related to the fact that no heterogeneous nucleation occurs, if the particle diameter is too small. If the mean particle diameter of the used additives is larger than 1.5 µm, which could be demonstrated in this study in case of polyetherimide, then the additive acts as nucleating agent and heterogeneous nucleation occurs. Furthermore, it was observed that the mean cell diameter was affected by the different surface tensions of the studied nucleating agents.

scholarly journals Effect of Nozzle Depth on Pneumatic Conveying Characteristics of Suction Nozzle with Injection Pipe

2012 ◽  
Vol 49 (2) ◽  
pp. 92-99
Author(s):  
Minoru Fukuhara ◽  
Kenta Takamoto ◽  
Yoshitaka Oda ◽  
Takaaki Oshima ◽  
Hiroshi Kouguchi ◽  
...  
Keyword(s):  
Pneumatic Conveying ◽  
Suction Nozzle
Sign in / Sign up

Export Citation Format

Share Document