In this paper, we present the preliminary results about the thermal field inside the cryostat, obtained by finite element numerical simulations performed in Comsol Multiphysics environment. The simulations concern simplified three-dimensional geometries obtained from field inspections and construction schemes; sizes and materials actually used and all modes of heat transfer are taken in account. We discuss some configurations of thermal insulation and boundary conditions able to simulate the effect of a "cold head" placed in contact with a very limited portion of the cryo-shields.
Numerical study of the thermal field in a cryostat for nuclear magnetic resonance imaging / D'Orazio, Annunziata; D., Bernardi; M., Campoli. - ELETTRONICO. - (2014). (Intervento presentato al convegno 32 nd UIT Heat Transfer Conference tenutosi a Pisa nel 23-25 june 2014).
Numerical study of the thermal field in a cryostat for nuclear magnetic resonance imaging
D'ORAZIO, Annunziata;
2014
Abstract
In this paper, we present the preliminary results about the thermal field inside the cryostat, obtained by finite element numerical simulations performed in Comsol Multiphysics environment. The simulations concern simplified three-dimensional geometries obtained from field inspections and construction schemes; sizes and materials actually used and all modes of heat transfer are taken in account. We discuss some configurations of thermal insulation and boundary conditions able to simulate the effect of a "cold head" placed in contact with a very limited portion of the cryo-shields.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
