Full Multi-Port Characterization of a Circular Orifice-Plate

2016 ◽  
Author(s):  
Stefan Sack ◽  
Mats Åbom
Keyword(s):  
Orifice Plate ◽  
Circular Orifice

Characterization of Oil-Water Dispersions/Emulsions Flowing Through Restrictions

2010 ◽  
Author(s):  
Mari´a V. Parra ◽  
Luis Go´mez ◽  
Ram S. Mohan ◽  
Ovadia Shoham ◽  
Gene Kouba ◽  
...  
Keyword(s):  
Phase Inversion ◽  
Processing Technique ◽  
Orifice Plate ◽  
Image Processing Technique ◽  
Inversion Point ◽  
Plate Size ◽  
Point Image ◽  
Oil Water ◽  
Water Cut

An experimental study of the characterization of oil-water dispersions/emulsions flowing through an orifice plate was carried out in the Dispersion Characterization Rig® (DCR), a state-of-the-art facility for studying the separation process of dispersions/emulsions. In this study, experiments with distilled water and mineral oil at different choke pressures, velocities, and different orifice sizes were conducted in order to find the phase-inversion zone and observe how the separation profile is affected by these variables. Bulk flow kinetic energy and water cut, are plotted against the pressure drop in the orifice plate to find the inversion point. Image processing technique is used to measure the coalescing and sedimenting profiles with respect to time. Results indicate a good agreement between the two methods used to find where phase inversion occurs and that this is affected by velocities, choke pressure and orifice plate size; also that emulsions become more stable when smaller size of orifice plates are used, as expected.

Experimental Study of Turbulence Across the Fractal Orifice Plate

2010 ◽  
Author(s):  
S. M. Muztaba Salim ◽  
Franck C. G. A. Nicolleau ◽  
Stephen B. M. Beck ◽  
Andrzej F. Nowakowski
Keyword(s):  
Experimental Study ◽  
Pressure Drop ◽  
Wind Tunnel ◽  
Orifice Plate ◽  
Flow Structures ◽  
Flow Properties ◽  
Flow Area ◽  
Flow Mixing ◽  
Circular Orifice ◽  
Edge Sharpness

An experimental study of turbulence behind a fractal orifice plate, a variant of classical circular orifice plate, was conducted in a circular wind tunnel. Four fractal orifice plates with iteration levels from zero to three in combination with a classical circular orifice plate, each with equal flow area, were used in the study. Of the two main objectives, the first one was to test the superiority of the proposed fractal orifice plate against the classical one and the second one was to investigate the fractal orifice effect on the flow properties. Across the fractal orifice plate, a decrease in the pressure drop and an increase in the flow mixing is observed making it much more efficient than the classical orifice plate. It was suggested that at each fractal iteration, the added edge sharpness generated finer flow structures and these flow structures were eventually responsible for the improved efficiency.

Spray and Atomization Characterization of a Micro-Variable Circular-Orifice (MVCO) Fuel Injector

2011 ◽  
Author(s):  
Deyang Hou ◽  
Yiqun Huang ◽  
Ming Huo ◽  
Way Lee Cheng ◽  
Xuan Feng ◽  
...  
Keyword(s):  
Fuel Injector ◽  
Circular Orifice

Characterization of high-pressure cavitating flow through a thick orifice plate in a pipe of constant cross section

2017 ◽  
Vol 114 ◽  
pp. 229-240 ◽  
Author(s):  
Behrouz Ebrahimi ◽  
Guoliang He ◽  
Yingjie Tang ◽  
Matthew Franchek ◽  
Dong Liu ◽  
...  
Keyword(s):  
High Pressure ◽  
Cross Section ◽  
Cavitating Flow ◽  
Orifice Plate ◽  
Constant Cross Section ◽  
Flow Through

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.

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