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Analysis of the steady state hydraulic behaviour of the ITER blanket cooling system
- Publication Year :
- 2015
- Publisher :
- Elsevier Ltd, 2015.
-
Abstract
- The blanket system is the ITER reactor component devoted to providing a physical boundary for plasma transients and contributing to thermal and nuclear shielding of vacuum vessel, magnets and external components. It is expected to be subjected to significant heat loads under nominal conditions and its cooling system has to ensure an adequate cooling, preventing any risk of critical heat flux occurrence while complying with pressure drop limits. At the University of Palermo a study has been performed, in cooperation with the ITER Organization, to investigate the steady state hydraulic behaviour of the ITER blanket standard sector cooling system. A theoretical–computational approach based on the finite volume method has been followed, adopting the RELAP5 system code. Finite volume models of the most critical blanket cooling circuits have been set-up, realistically simulating the coolant flow domain. The steady state hydraulic behaviour of each cooling circuit has been investigated, determining its hydraulic characteristic function and assessing the spatial distribution of coolant mass flow rates, velocities and pressure drops under reference nominal conditions. Results obtained have indicated that the investigated cooling circuits are able to provide an effective cooling to blanket modules, generally meeting ITER requirements in term of pressure drop and velocity distribution, except for a couple of circuits that are being revised.
- Subjects :
- Pressure drop
Finite volume method
Steady state
ITER, Blanket, Hydraulics
Critical heat flux
Mechanical Engineering
Mass flow
Nuclear engineering
Blanket
Coolant
Nuclear Energy and Engineering
Water cooling
Environmental science
General Materials Science
Settore ING-IND/19 - Impianti Nucleari
Civil and Structural Engineering
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....20f6acbe353f01a23e2a3353b28af1ba