Gas velocity distribution in conical spouted beds with high‐density particles

2021 ◽  
Author(s):  
Neslin Dogan ◽  
Murat Koksal ◽  
Gorkem Kulah
Keyword(s):  
Velocity Distribution ◽  
High Density ◽  
Gas Velocity ◽  
Spouted Beds

scholarly journals Active matter at high density: Velocity distribution and kinetic temperature

2020 ◽  
Vol 153 (18) ◽  
pp. 184901
Author(s):  
Lorenzo Caprini ◽  
Umberto Marini Bettolo Marconi
Keyword(s):  
Velocity Distribution ◽  
High Density ◽  
Kinetic Temperature ◽  
Active Matter

scholarly journals Study of Gas Velocity Distribution in Electrostatic Precipitators

1990 ◽  
Vol 12 (4) ◽  
pp. 947-952 ◽  
Author(s):  
Li Enliang ◽  
Wang Yingmin ◽  
J. A. Raper
Keyword(s):  
Velocity Distribution ◽  
Gas Velocity ◽  
Electrostatic Precipitators

Three-Dimensional Velocity and Droplet Size Measurements of Spray Flow (Keynote Paper)

2003 ◽  
Author(s):  
Yoshio Zama ◽  
Masaaki Kawahashi ◽  
Hiroyuki Hirahara
Keyword(s):  
Velocity Distribution ◽  
Droplet Size ◽  
Measurement Technique ◽  
Three Dimensional ◽  
High Density ◽  
Dimensional Structure ◽  
Practical Application ◽  
Droplet Motion ◽  
Observation Area ◽  
Spray Field

The present investigation describes an application of a novel technique of simultaneous measurement of droplet size and three-dimensional components of velocity in a high density spray with swirl. The spray has a complicated and three-dimensional structure caused by mixing with surrounding airflow entrained by high speed fuel jet issuing from a nozzle. The breakup process of fuel film to fine-droplet-cloud, the droplet size dispersion and the velocity distribution of droplets are important factors in practical application of fuel spray for combustors. The conventional technique can be applied to local measurement of droplet speed and size. Recent methods, based on optical and image processing techniques, provide measurement of the velocity and droplet size distribution in observation area or volume. Maeda et al. proposed an excellent measurement technique of the size and the velocity distribution of droplet in spray based on interferometric laser imaging in which the fringe pattern is generated at the out of focus plane by interference between 0th order and 1st order refractions of droplet illuminated by high power laser light sheet. And also, in this technique, the separation of overlapping droplets image has been successfully done by optical method. As a practical application, the size and velocity distributions of droplets in a high density spray without swirl have been measured by this technique. In general, the droplet motion in a spray field is highly three-dimensional. Especially, a spray generated by a swirl nozzle shows complicated droplet motion in the three-dimensional field. In order to analyze the configuration of a complicated spray field, three-dimensional velocity measurement of droplets must be required. In the present paper, a combined measurement technique of the size and three velocity components of droplets in three-dimensional spray field based on doublet imaging technique of droplets and stereoscopic PIV method has been developed. And its feasibility and applicability was confirmed by practical application to measurements of spray fields induced by a swirl jet nozzle using in gas turbine.

Influence of the particle diameter and density in the gas velocity in jet spouted beds

2005 ◽  
Vol 44 (2) ◽  
pp. 153-157 ◽  
Author(s):  
Marı́a J. San José ◽  
Sonia Alvarez ◽  
Alvaro Ortiz de Salazar ◽  
Martı́n Olazar ◽  
Javier Bilbao
Keyword(s):  
Particle Diameter ◽  
Gas Velocity ◽  
Spouted Beds

Experimental Study on Internal Flow Field of Wet Desulphurization Tower

2011 ◽  
Vol 354-355 ◽  
pp. 137-144
Author(s):  
Jing Zhu ◽  
Qi Xu ◽  
Li Ping Zhang
Keyword(s):  
Experimental Study ◽  
Pressure Drop ◽  
Velocity Distribution ◽  
Flue Gas ◽  
Velocity Ratio ◽  
Internal Flow ◽  
Liquid Droplets ◽  
Gas Velocity ◽  
Entrance Angle ◽  
Inlet Angle

In order to study the flue gas velocity distribution and pressure drop characteristics inside wet desulfurization Tower, experimental study has been carried out. Flow model is built with geometric scale of 1 / 12 , flue gas velocity ratio of 1 / 1 and different gas entrance angle as 12°and 7°. Experiment result shows that Spray liquid droplets made gas more evenly; The evenness of gas velocity distribution is very poor with very low gas load (<35%);The pressure drop in tower increases with increase of sprayer and increases with increase of gas load; The evenness of gas velocity distribution becomes poor and the pressure drop increases when gas inlet angle changes from 12°to 7°.

Measurement of gas velocity distribution using a wire-mesh electrostatic probe

2004 ◽  
Vol 112 (2-3) ◽  
pp. 237-243 ◽  
Author(s):  
Ok Jin Joung ◽  
Young Han Kim ◽  
Si Pom Kim
Keyword(s):  
Velocity Distribution ◽  
Wire Mesh ◽  
Gas Velocity ◽  
Electrostatic Probe
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