

Type of Document Master's Thesis Author Faucher, Florent Patrice Author's Email Address ffaucher@vt.edu URN etd-121698-145749 Title A Numerical Model of a Microwave Heated Fluidized Bed Degree Master of Science Department Mechanical Engineering Advisory Committee
Advisor Name Title Thomas, James R. Jr. Committee Chair Davis, Willam A. Committee Member Stern, Curtis H. Committee Member Keywords
- Microwave
- Fluidization
- Heat transfer
- Catalyst
Date of Defense 1998-12-10 Availability unrestricted Abstract This proposes a model for a microwave heated fluidizedbed by ceramic pellets to highlight the possibility
to obtain a temperature gradient between the gas and
the pellets. After a review of the recent work on
microwave effects on chemical reactions, a short
description of fluidization is given for a better
understanding of the phenomena, followed by a
development of a model of the heat transfer
processes taking place in the fluidized bed. A
parameter study describes the trends that should be
expected despite the numerous restrictions and
assumptions. Also, a set of parameters is proposed
for optimal conditions that are close to the real
conditions often encountered in practice. Numerous
figures and tables are added, completing the main
argument advanced in the thesis: it is possible to
obtain a temperature difference between the gas
and the pellets of a chemical bed reactor heated by
microwaves by carefully choosing the following
parameters: pellet diameter, bed height, gas
velocity, pellet density and electric field.
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