|Published (Last):||25 November 2008|
|PDF File Size:||8.66 Mb|
|ePub File Size:||12.74 Mb|
|Price:||Free* [*Free Regsitration Required]|
In fluidized bed processes, the gas—solid interactions and chemical reactions generate a large number of variables to be handled, making the process very complex.
Philippsen looks to complete her studies by The method of Wen and Yu which consists of simultaneously eliminating the bed voidage at minimum fluidization and particle sphericity from levenspiel fluidization engineering pdf download minimum fluidization velocity calculation remains definitively scientifically wrong and should be avoided. Has experience in Mechanical Engineering with emphasis on Harnessing of Levenspiel fluidization engineering pdf download, acting on the following topics: The present study aims at presenting an improvement of the use of Wen and Yu simplifications for minimum fluidization velocity having presented the scientific awkwardness contained in the usual method of using their or similar relations simultaneously in combination with Ergun’s equation.
A change in the Wen and Yu’s correlations use is then suggested to increase, on the one hand, the prediction accuracy for the minimum fluidization velocity levenspiel fluidization engineering pdf download, and on the other hand, the scientific exactness of this generally received engineering method. Abstract The fluidized bed is a technology that involves multiple phases, allowing for efficient contact between them, therefore it is widely used in the chemical industry, metallurgy, oil and thermal power generation.
Based on this, the present work presents a review of the main mathematical models that describe the behavior of a fluidized bed reactor, and the state of the art regarding the use of modeling and simulation of the bed to predict and analyze different processes. As a result of this review, we can observe the importance levenspiel fluidization engineering pdf download further development of the hydrodynamic modeling of fluidized beds, where understanding the interactions between the phases and the influence of this interaction levenspiel fluidization engineering pdf download crucial for a better understanding and control of the processes.
Keywords minimum fluidization velocity. Performances of the new method significantly improves the prediction of minimum fluidization velocity.
Recommended articles Citing articles 0. Published by Elsevier B. Under a Creative Commons license. Published by Elsevier Editora Ltda.
The present study has demonstrated the contradiction deduced from down,oad simultaneous use of these Wen and Yu relations as it is the case for the minimum fluidization velocity. Therefore, fluidized bed modeling levenspiel fluidization engineering pdf download simulation is widely used to predict and analyze different processes, but it is possible to find in the literature many mathematical correlations that describe this type of flow.
The fluidized bed is a technology that involves multiple phases, allowing for efficient contact between them, therefore it is widely used in levenspiiel chemical industry, metallurgy, oil and thermal power generation. Generating experimental data of gas—solid and solid—solid interactions is also required for the validation of the numerical models.
Revisiting the Wen and Yu Equations for Minimum Fluidization Velocity Prediction – ScienceDirect
Author links open overlay panel A. Also provides advice and design of passive energy systems in architecture: Check if you have access through your login credentials or your institution.
Has experience in guiding students pcf Technology Center, in conducting projects in Metallurgical and Materials Engineering. Correlating data is a delicate task where the best is among the worse.
Currently a Director of ABM. Recommended articles Citing articles 0. Her research, under Dr. Leandro Dalla Zen, studies the fluid dynamics behavior and their influences in combustion processes in bubbling fluidized beds.