نتایج جستجو برای: Pneumatic conveying

تعداد نتایج: 11759  

2000
Hui Li Yuji Tomita

An experimental study concerning particle behaviors in a horizontal dilute swirling flow pneumatic conveying was performed. Measurements of particle velocities and concentration profiles have been carried out using the photographic image technique. From the experimental results, it is found that mean particle velocity of swirling flow pneumatic conveying is lower than that of conventional pneum...

Ali Sarrami Foroushani Mohsen Nasr Esfahany,

Computational Fluid Dynamics (CFD) simulations of gas-solid flow through a positive low-pressure pneumatic conveyor were performed using Eulerian-Eulerian framework. Pressure drop in pneumatic conveying pipelines, creation and destruction of plugs along the horizontal and vertical pipes, effect of 90° elbows and U-bends on cross-section concentrations, and rope formation and dispersion were...

2006
Sean McNamara Martin Strauß Florian Zeller Hans J. Herrmann

Dense phase pneumatic conveying has been investigated through simulation, using a discrete element approach for the granular particles and a finite difference method for the pressure field. Both horizontal and vertical conveying are studied and compared. Studies of single plugs or slugs promise to give insight into the performance of pneumatic conveying systems.

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
ali sarrami foroushani mohsen nasr esfahany

computational fluid dynamics (cfd) simulations of gas-solid flow through a positive low-pressure pneumatic conveyor were performed using eulerian-eulerian framework. pressure drop in pneumatic conveying pipelines, creation and destruction of plugs along the horizontal and vertical pipes, effect of 90° elbows and u-bends on cross-section concentrations, and rope formation and dispersion were num...

2015
N. S. Prabhath Sharma

3 Design engineer, Scorpio, Industries ltd., (India) ABSTRACT Pneumatic conveying system has always been economic and efficient means of conveying materials. From the historical background it is evident that there has been a considerable development to that extent where in even high density materials can be easily conveyed. With many advantages over conventional conveying system, it stands in a...

Journal: :KONA Powder and Particle Journal 2000

2008
A. Fuchs H. Zangl

This paper provides an overview of existing technologies to measure flow parameters, such as material velocity and material concentration, in industrial transportation processes of particulate and powdery solids with a focus on pneumatic conveying. Restrictions, advantages and drawbacks of state of the art measurement principles are discussed. We show that capacitance-based sensing with suitabl...

Journal: :journal of agricultural science and technology 2010
a. hemmat m. emamy s. j. razavi a. a. masoumi

knowledge of the aerodynamic properties of agricultural materials is needed in equip-ment design for operations such as pneumatic conveying in loading/unloading operations of corn silage into/from silos. while considerable information is available on seed grains, little is known about the aerodynamic behavior of corn (zea mays l.) silage. in this re-search, the weighed mean terminal velocity of...

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