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Title: Electrical heating of soils using high efficiency electrode patterns and power phases

Abstract

Powerline-frequency electrical (joule) heating of soils using a high efficiency electrode configuration and power phase arrangement. The electrode configuration consists of several heating or current injection electrodes around the periphery of a volume of soil to be heated, all electrodes being connected to one phase of a multi-phase or a single-phase power system, and a return or extraction electrode or electrodes located inside the volume to be heated being connected to the remaining phases of the multi-phase power system or to the neutral side of the single-phase power source. This electrode configuration and power phase arrangement can be utilized anywhere where powerline frequency soil heating is applicable and thus has many potential uses including removal of volatile organic compounds such as gasoline and tricholorethylene (TCE) from contaminated areas.

Inventors:
 [1]
  1. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
872714
Patent Number(s):
5994670
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
B - PERFORMING OPERATIONS B09 - DISPOSAL OF SOLID WASTE B09C - RECLAMATION OF CONTAMINATED SOIL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
electrical; heating; soils; efficiency; electrode; patterns; power; phases; powerline-frequency; joule; configuration; phase; arrangement; consists; current; injection; electrodes; periphery; volume; soil; heated; connected; multi-phase; single-phase; return; extraction; located; inside; remaining; neutral; source; utilized; powerline; frequency; applicable; potential; including; removal; volatile; organic; compounds; gasoline; tricholorethylene; tce; contaminated; electrical heating; current injection; electrodes located; electrode configuration; located inside; organic compound; power source; organic compounds; volatile organic; power phase; electrical heat; extraction electrode; frequency electrical; frequency electric; phase power; powerline-frequency electrical; efficiency electrode; /219/405/

Citation Formats

Buettner, Harley M. Electrical heating of soils using high efficiency electrode patterns and power phases. United States: N. p., 1999. Web.
Buettner, Harley M. Electrical heating of soils using high efficiency electrode patterns and power phases. United States.
Buettner, Harley M. Fri . "Electrical heating of soils using high efficiency electrode patterns and power phases". United States. https://www.osti.gov/servlets/purl/872714.
@article{osti_872714,
title = {Electrical heating of soils using high efficiency electrode patterns and power phases},
author = {Buettner, Harley M},
abstractNote = {Powerline-frequency electrical (joule) heating of soils using a high efficiency electrode configuration and power phase arrangement. The electrode configuration consists of several heating or current injection electrodes around the periphery of a volume of soil to be heated, all electrodes being connected to one phase of a multi-phase or a single-phase power system, and a return or extraction electrode or electrodes located inside the volume to be heated being connected to the remaining phases of the multi-phase power system or to the neutral side of the single-phase power source. This electrode configuration and power phase arrangement can be utilized anywhere where powerline frequency soil heating is applicable and thus has many potential uses including removal of volatile organic compounds such as gasoline and tricholorethylene (TCE) from contaminated areas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

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