skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method and apparatus for improving heat transfer in a fluidized bed

Abstract

An apparatus contains a fluidized bed that includes particles of different triboelectrical types, each particle type acquiring an opposite polarity upon contact. The contact may occur between particles of the two types or between particles of etiher type and structure or fluid present in the apparatus. A fluidizing gas flow is passed through the particles to produce the fluidized bed. Immersed within the bed are electrodes. An alternating EMF source connected to the electrodes applies an alternating electric field across the fluidized bed to cause particles of the first type to move relative to particles of the second type and relative to the gas flow. In a heat exchanger incorporating the apparatus, the electrodes are conduits conveying a fluid to be heated. The two particle types alternately contact each conduit to transfer heat from a hot gas flow to the second fluid within the conduit.

Inventors:
 [1];  [1]
  1. (Richland, WA)
Issue Date:
Research Org.:
BATTELLE MEMORIAL INSTITUTE
OSTI Identifier:
867228
Patent Number(s):
4890667
Assignee:
Battelle Memorial Institute (Richland, WA) PNNL
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; improving; heat; transfer; fluidized; bed; contains; particles; triboelectrical; types; particle; type; acquiring; opposite; polarity; contact; occur; etiher; structure; fluid; fluidizing; gas; flow; passed; produce; immersed; electrodes; alternating; emf; source; connected; applies; electric; field; move; relative; exchanger; incorporating; conduits; conveying; heated; alternately; conduit; hot; fluidizing gas; source connected; opposite polarity; gas flow; electric field; heat exchange; fluidized bed; heat exchanger; heat transfer; hot gas; transfer heat; alternating electric; move relative; apparatus contains; particle type; /165/

Citation Formats

Lessor, Delbert L., and Robertus, Robert J. Method and apparatus for improving heat transfer in a fluidized bed. United States: N. p., 1990. Web.
Lessor, Delbert L., & Robertus, Robert J. Method and apparatus for improving heat transfer in a fluidized bed. United States.
Lessor, Delbert L., and Robertus, Robert J. Mon . "Method and apparatus for improving heat transfer in a fluidized bed". United States. https://www.osti.gov/servlets/purl/867228.
@article{osti_867228,
title = {Method and apparatus for improving heat transfer in a fluidized bed},
author = {Lessor, Delbert L. and Robertus, Robert J.},
abstractNote = {An apparatus contains a fluidized bed that includes particles of different triboelectrical types, each particle type acquiring an opposite polarity upon contact. The contact may occur between particles of the two types or between particles of etiher type and structure or fluid present in the apparatus. A fluidizing gas flow is passed through the particles to produce the fluidized bed. Immersed within the bed are electrodes. An alternating EMF source connected to the electrodes applies an alternating electric field across the fluidized bed to cause particles of the first type to move relative to particles of the second type and relative to the gas flow. In a heat exchanger incorporating the apparatus, the electrodes are conduits conveying a fluid to be heated. The two particle types alternately contact each conduit to transfer heat from a hot gas flow to the second fluid within the conduit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

Save / Share: