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Title: Modeling and Simulation of the ITER First Wall/Blanket Primary Heat Transfer System

Abstract

ITER inductive power operation is modeled and simulated using a thermal-hydraulics system code (RELAP5) integrated with a 3-D CFD (SC-Tetra) code. The Primary Heat Transfer System (PHTS) functions are predicted together with the main parameters operational ranges. The control algorithm strategy and derivation are summarized as well. The First Wall and Blanket modules are the primary components of PHTS, used to remove the major part of the thermal heat from the plasma. The modules represent a set of flow channels in solid metal structure that serve to absorb the radiation heat and nuclear heating from the fusion reactions and to provide shield for the vacuum vessel. The blanket modules are water cooled. The cooling is forced convective with constant blanket inlet temperature and mass flow rate. Three independent water loops supply coolant to the three blanket sectors. The main equipment of each loop consists of a pump, a steam pressurizer and a heat exchanger. A major feature of ITER is the pulsed operation. The plasma does not burn continuously, but on intervals with large periods of no power between them. This specific feature causes design challenges to accommodate the thermal expansion of the coolant during the pulse period and requiresmore » active temperature control to maintain a constant blanket inlet temperature.« less

Authors:
 [1];  [2]
  1. University of California, Los Angeles
  2. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); ITER Organization, St. Paul Lez Durance (France)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1031524
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 19th Topical Meeting on the Technology of Fusion Energy, Las Vegas, NV, USA, 20101107, 20101111
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALGORITHMS; COOLANTS; FIRST WALL; FLOW RATE; HEAT EXCHANGERS; HEAT TRANSFER; HEATING; PLASMA; PRESSURIZERS; RADIATIONS; SHIELDS; STEAM; TEMPERATURE CONTROL; THERMAL EXPANSION; THERMAL HYDRAULICS; THERMONUCLEAR REACTORS

Citation Formats

Ying, Alice, and Popov, Emilian L. Modeling and Simulation of the ITER First Wall/Blanket Primary Heat Transfer System. United States: N. p., 2011. Web.
Ying, Alice, & Popov, Emilian L. Modeling and Simulation of the ITER First Wall/Blanket Primary Heat Transfer System. United States.
Ying, Alice, and Popov, Emilian L. 2011. "Modeling and Simulation of the ITER First Wall/Blanket Primary Heat Transfer System". United States.
@article{osti_1031524,
title = {Modeling and Simulation of the ITER First Wall/Blanket Primary Heat Transfer System},
author = {Ying, Alice and Popov, Emilian L},
abstractNote = {ITER inductive power operation is modeled and simulated using a thermal-hydraulics system code (RELAP5) integrated with a 3-D CFD (SC-Tetra) code. The Primary Heat Transfer System (PHTS) functions are predicted together with the main parameters operational ranges. The control algorithm strategy and derivation are summarized as well. The First Wall and Blanket modules are the primary components of PHTS, used to remove the major part of the thermal heat from the plasma. The modules represent a set of flow channels in solid metal structure that serve to absorb the radiation heat and nuclear heating from the fusion reactions and to provide shield for the vacuum vessel. The blanket modules are water cooled. The cooling is forced convective with constant blanket inlet temperature and mass flow rate. Three independent water loops supply coolant to the three blanket sectors. The main equipment of each loop consists of a pump, a steam pressurizer and a heat exchanger. A major feature of ITER is the pulsed operation. The plasma does not burn continuously, but on intervals with large periods of no power between them. This specific feature causes design challenges to accommodate the thermal expansion of the coolant during the pulse period and requires active temperature control to maintain a constant blanket inlet temperature.},
doi = {},
url = {https://www.osti.gov/biblio/1031524}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 2011},
month = {Sat Jan 01 00:00:00 EST 2011}
}

Conference:
Other availability
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