Search Results - "Knowlton, Ted"

High speed imaging of particle flow fields in CFB risers by Shaffer, Frank, Gopalan, Balaji, Breault, Ronald W., Cocco, Ray, Karri, S.B. Reddy, Hays, Roy, Knowlton, Ted

“…Particle flows of high particle concentration are important in many fields, including chemical processing, pharmaceutical processing, energy conversion and…”
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Cluster characteristics of Geldart Group B particles in a pilot-scale CFB riser. I. Monodisperse systems by Chew, Jia Wei, Hays, Roy, Findlay, John G., Knowlton, Ted M., Reddy Karri, S.B., Cocco, Ray A., Hrenya, Christine M.

“…Experiments in a circulating fluidized bed (CFB) riser with Geldart Group B particles have been carried out with an emphasis on cluster characterization. In…”
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Cluster characteristics of Geldart group B particles in a pilot-scale CFB riser. II. Polydisperse systems by Chew, Jia Wei, Hays, Roy, Findlay, John G., Knowlton, Ted M., Karri, S.B. Reddy, Cocco, Ray A., Hrenya, Christine M.

“…Experiments with a focus on the impact of polydispersity on clustering characteristics (namely, appearance probability, duration, and frequency) of Geldart…”
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Intrusive probes in riser applications by Cocco, Ray A., Karri, S.B. Reddy, Knowlton, Ted M., Findlay, John, Gauthier, Thierry, Chew, Jia Wei, Hrenya, Christine M.

“…Many of the probes used to understand hydrodynamics in circulating fluidized bed risers intrude into the environment they are measuring, although assumptions…”
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Small-Scale Particle Interactions Are Having Significant Effects on Global Fluidized Bed Behavior by Cocco, Ray, Issangya, Allan, Karri, S.B. Reddy, Freeman, Tim, Jaeger, Heinrich M., Knowlton, Ted M.

“…Fluidized bed design and scale-up depends strongly on particle characteristics such as size, shape, and for Geldart Group A particles, the level of fines…”
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Species segregation of binary mixtures and a continuous size distribution of Group B particles in riser flow by Chew, Jia Wei, Hays, Roy, Findlay, John G., Karri, S.B. Reddy, Knowlton, Ted M., Cocco, Ray A., Hrenya, Christine M.

“…Experiments involving a gas–solid, pilot-scale circulating fluidized bed (CFB) have been carried out, with a focus on species segregation measurements in a…”
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Reverse core-annular flow of Geldart Group B particles in risers by Chew, Jia Wei, Hays, Roy, Findlay, John G., Knowlton, Ted M., Karri, S.B. Reddy, Cocco, Ray A., Hrenya, Christine M.

“…Experiments involving monodisperse Geldart Group B particles have been carried out in a pilot-scale riser of a circulating fluidized bed (CFB). Several…”
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Impact of material property and operating conditions on mass flux profiles of monodisperse and polydisperse Group B particles in a CFB riser by Chew, Jia Wei, Hays, Roy, Findlay, John G., Knowlton, Ted M., Karri, S.B. Reddy, Cocco, Ray A., Hrenya, Christine M.

“…Experiments directed at understanding local mass flux behavior of Geldart Group B materials in the riser of a gas-solids circulating fluidized bed (CFB) have…”
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Simulating hydrodynamics of hot and large Group A particle systems at cold conditions to obtain data for scale-up by Knowlton, Ted M.

“…Scaling laws based on the concept of dimensional similitude are proposed to simulate the hydrodynamics of hot and large particle systems at conditions of cold…”
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How Underflow Standpipes Adjust to Maintain Pressure Balance Around a Circulation Loop by Knowlton, Ted, Karri, S. B. Reddy

“…The standpipe has become a standard element of most circulation loops. In the past, standpipes have been thought of as a device to only allow solids to…”
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History of fluidization in North America by Knowlton, Ted M., Keairns, Dale L., Yang, Wen-Ching

“…This paper primarily discusses the development of fluidization in North America in the 20th century. Although the history described is primarily in North…”
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Effect of Aeration on the Operation of Cyclone Diplegs Fitted with Trickle Valves by Karri, S. B. Reddy, Knowlton, Ted M

“…Tests were conducted with a trickle valve attached to a 100-mm-diameter dipleg to determine the effect of trickle valve operation with aerated and unaerated…”
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Bed density and bubble void fraction variation in a fluidized bed stripper by Issangya, Allan S., Cocco, Ray A., Reddy Karri, S.B., Knowlton, Ted M., Wei Chew, Jia

“…•Beddensity, pressure fluctuation andbubble void fraction quantified for strippers.•Gratings gave higher bed density and allowed a wider range of operating…”
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Engaging the Future: Forecasts, Scenarios, Plans, and Projects by Knowlton, Ted

“…Engaging the Future: Forecasts, Scenarios, Plans, and Projects, edited by Lewis D. Hopkins and Marisa A. Zapata, is reviewed…”
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Particle clusters in and above fluidized beds by Cocco, Ray, Shaffer, Frank, Hays, Roy, Reddy Karri, S.B., Knowlton, Ted

“…High-speed video imaging of particle clusters in and above a fluidized bed suggests that clustering is significant for FCC catalyst and polyethylene powders…”
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Solids flux profiles of Geldart Group A particles in high‐velocity circulating fluidized bed risers by Issangya, Allan S., Karri, S. B. Reddy, Cocco, Ray A., Knowlton, Ted, Chew, Jia Wei

“…Circulating fluidized bed (CFB) risers using Group A particles have traditionally, mostly, been considered to operate in the fast fluidization regime, which…”
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Introduction to Fluidization by Cocco, Ray, Karri, S B Reddy, Knowlton, Ted

“…Figure 1 shows the increase in pressure drop with increasing superficial gas velocity through a bed of particles that is initially packed. As the superficial…”
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Applying Innovative Performance Metrics for Corridor Evaluation by Vyas, Maria, Harris, Jeffery, Knowlton, Ted, LaBonty, G. J., Milam, Ronald T., Seager, Shawn, Williges, Chris, Zundel, Lisa

“…Widespread application of traditional performance metrics such as vehicle level of service has resulted in transportation networks that are often suited for…”
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Intrusive probes in riser applications by Cocco, Ray A., Karri, S. B. Reddy, Knowlton, Ted M., Findlay, John, Gauthier, Thierry, Chew, Jia Wei, Hrenya, Christine M.

“…Not provided…”
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Use of pressure to mitigate gas bypassing in fluidized beds of FCC catalyst particles by Issangya, Allan S., Reddy Karri, S.B., Knowlton, Ted, Cocco, Ray

“…Deep gas fluidized beds of low-fines fluid catalytic cracking (FCC) catalyst particles can have severe gas maldistribution due to gas bypassing. Tests were…”
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