Analytical model for fusion first-wall temperature calculations

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5256563

Carroll, M C

A primary analytical thermal analysis model is presented that allows for calculation of temperatures in fusion reactor first walls. The model utilizes input quantities based on plasma-physics calculations and couples a two-and-one-half-dimensional geometric analysis with a one-dimensional heat conduction analysis in determining temperature profiles over the surface of and within materials used to confine the plasma and vacuum. Given materials-related temperature limitations, methods are also provided for calculating maximum allowable wall power loadings. The results are primarily applicable to the steady-state operation of magnetic confinement devices such as tokamaks. In the geometric analysis, effects of wall geometry, toroidal curvature, and wall corrugation were considered in computing local wall loadings for bremsstrahlung, cyclotron radiation, charged particle, and neutrons, the four main types of energy generated within fusion plasmas. It was found that local loadings vary up to about 20% from the calculated averages. Temperature solutions based on these loadings were readily obtained in rectangular coordinates.

• Research Organization: Illinois Univ., Urbana (USA)
• OSTI ID: 5256563
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700204* -- Fusion Power Plant Technology-- Cooling Systems
CALCULATION METHODS
CONFINEMENT
FIRST WALL
PHYSICAL PROPERTIES
PLASMA CONFINEMENT
POWER DENSITY
STEADY-STATE CONDITIONS
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THERMONUCLEAR REACTOR WALLS
THERMONUCLEAR REACTORS
WALL LOADING