The present work studies numerically the heating of multilayer porous packed bed which is subjected to the microwave radiation with a rectangular waveguide. The multilayer porous packed bed consists of the layers of fine and coarse beds. The simulations of electromagnetic field are described by solving Maxwell’s equations with the finite difference time domain (FDTD) method. The flow fields and the temperature profiles are determined by the solutions of the Brinkman–Forchheimer extended Darcy model, energy, and Maxwell’s equations. The study aims to understand of the influences of layered configuration, layered thickness, and operating frequency on the transport processes in a multilayer porous packed bed. The results show that all parameters have significant effect on the distributions of electromagnetic field inside a waveguide, temperature profiles, and velocity fields within the multilayer porous packed bed.
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e-mail: ratphadu@engr.tu.ac.th
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Numerical Model of Microwave Driven Convection in Multilayer Porous Packed Bed Using a Rectangular Waveguide
Waraporn Klinbun,
Waraporn Klinbun
Rattanakosin College for Sustainable Energy and Environment (RCSEE),
Rajamangala University of Technology Rattanakosin
, 96 moo 3, Puthamonthon Sai 5, Salaya, Puthamonthon Nakhon Pathom 73170, Thailand
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Phadungsak Rattanadecho
Phadungsak Rattanadecho
Research Center of Microwave Utilization in Engineering (R.C.M.E.), Department of Mechanical Engineering, Faculty of Engineering,
e-mail: ratphadu@engr.tu.ac.th
Thammasat University (Rangsit Campus)
, 99 moo 18 Klong Luang, Pathumthani 12120, Thailand
Search for other works by this author on:
Waraporn Klinbun
Rattanakosin College for Sustainable Energy and Environment (RCSEE),
Rajamangala University of Technology Rattanakosin
, 96 moo 3, Puthamonthon Sai 5, Salaya, Puthamonthon Nakhon Pathom 73170, Thailand
Phadungsak Rattanadecho
Research Center of Microwave Utilization in Engineering (R.C.M.E.), Department of Mechanical Engineering, Faculty of Engineering,
Thammasat University (Rangsit Campus)
, 99 moo 18 Klong Luang, Pathumthani 12120, Thailand
e-mail: ratphadu@engr.tu.ac.th
J. Heat Transfer. Apr 2012, 134(4): 042605 (10 pages)
Published Online: February 15, 2012
Article history
Received:
January 5, 2011
Revised:
September 30, 2011
Online:
February 15, 2012
Published:
February 15, 2012
Citation
Klinbun, W., and Rattanadecho, P. (February 15, 2012). "Numerical Model of Microwave Driven Convection in Multilayer Porous Packed Bed Using a Rectangular Waveguide." ASME. J. Heat Transfer. April 2012; 134(4): 042605. https://doi.org/10.1115/1.4005254
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