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Title: Multiphase, multi-electrode Joule heat computations for glass melter and in situ vitrification simulations

Abstract

Waste glass melter and in situ vitrification (ISV) processes represent the combination of electrical thermal, and fluid flow phenomena to produce a stable waste-from product. Computational modeling of the thermal and fluid flow aspects of these processes provides a useful tool for assessing the potential performance of proposed system designs. These computations can be performed at a fraction of the cost of experiment. Consequently, computational modeling of vitrification systems can also provide and economical means for assessing the suitability of a proposed process application. The computational model described in this paper employs finite difference representations of the basic continuum conservation laws governing the thermal, fluid flow, and electrical aspects of the vitrification process -- i.e., conservation of mass, momentum, energy, and electrical charge. The resulting code is a member of the TEMPEST family of codes developed at the Pacific Northwest Laboratory (operated by Battelle for the US Department of Energy). This paper provides an overview of the numerical approach employed in TEMPEST. In addition, results from several TEMPEST simulations of sample waste glass melter and ISV processes are provided to illustrate the insights to be gained from computational modeling of these processes. 3 refs., 13 figs.

Authors:
;
Publication Date:
Research Org.:
Pacific Northwest Lab., Richland, WA (USA)
Sponsoring Org.:
DOE/NE
OSTI Identifier:
6036732
Report Number(s):
PNL-SA-19026; CONF-910287-2
ON: DE91008261; TRN: 91-008424
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: National research and development conference on the control of hazardous materials, Anaheim, CA (USA), 20-22 Feb 1991
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; CHEMICAL WASTES; VITRIFICATION; HAZARDOUS MATERIALS; RADIOACTIVE WASTES; T CODES; ELECTRIC FIELDS; FEASIBILITY STUDIES; FINITE DIFFERENCE METHOD; FLUID FLOW; IN-SITU PROCESSING; JOULE HEATING; LAND POLLUTION CONTROL; REMEDIAL ACTION; THEORETICAL DATA; WASTE FORMS; WASTE PROCESSING; COMPUTER CODES; CONTROL; DATA; ELECTRIC HEATING; HEATING; INFORMATION; ITERATIVE METHODS; MANAGEMENT; MATERIALS; NUMERICAL DATA; NUMERICAL SOLUTION; PLASMA HEATING; POLLUTION CONTROL; PROCESSING; RADIOACTIVE MATERIALS; RESISTANCE HEATING; WASTE MANAGEMENT; WASTES; 990200* - Mathematics & Computers; 052001 - Nuclear Fuels- Waste Processing; 320305 - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Industrial Waste Management

Citation Formats

Lowery, P.S., and Lessor, D.L. Multiphase, multi-electrode Joule heat computations for glass melter and in situ vitrification simulations. United States: N. p., 1991. Web.
Lowery, P.S., & Lessor, D.L. Multiphase, multi-electrode Joule heat computations for glass melter and in situ vitrification simulations. United States.
Lowery, P.S., and Lessor, D.L. Fri . "Multiphase, multi-electrode Joule heat computations for glass melter and in situ vitrification simulations". United States.
@article{osti_6036732,
title = {Multiphase, multi-electrode Joule heat computations for glass melter and in situ vitrification simulations},
author = {Lowery, P.S. and Lessor, D.L.},
abstractNote = {Waste glass melter and in situ vitrification (ISV) processes represent the combination of electrical thermal, and fluid flow phenomena to produce a stable waste-from product. Computational modeling of the thermal and fluid flow aspects of these processes provides a useful tool for assessing the potential performance of proposed system designs. These computations can be performed at a fraction of the cost of experiment. Consequently, computational modeling of vitrification systems can also provide and economical means for assessing the suitability of a proposed process application. The computational model described in this paper employs finite difference representations of the basic continuum conservation laws governing the thermal, fluid flow, and electrical aspects of the vitrification process -- i.e., conservation of mass, momentum, energy, and electrical charge. The resulting code is a member of the TEMPEST family of codes developed at the Pacific Northwest Laboratory (operated by Battelle for the US Department of Energy). This paper provides an overview of the numerical approach employed in TEMPEST. In addition, results from several TEMPEST simulations of sample waste glass melter and ISV processes are provided to illustrate the insights to be gained from computational modeling of these processes. 3 refs., 13 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {2}
}

Conference:
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