Numerical study of the external flow effect on the heat transfer in a radiometric calorimeter dedicated to nuclear heating measurements

Author

Muragiia, M. ; Reynard-Carette, C. ; Brun, J. ; Carette, M. ; Lyoussi, A. ; Guimbal, P. ; Villard, S.-F.

Author_Institution

LISA, Aix-Marseille Univ., Marseille, France

fYear

2012

fDate

Oct. 27 2012-Nov. 3 2012

Firstpage

295

Lastpage

301

Abstract

Improvement of measurements in reactor is still a challenge. Thus, this work focuses on numerical studies of one sensor dedicated to nuclear heating measurements: a radiometric calorimeter. More precisely, this work presents the first full 3D simulations of the calorimeter head showing that the key parameter for the sensitivity control is the convective heat transfers between the calorimeter and its external surrounding. Moreover, some insights of the effect on the calorimeter response of the linear coupling between the external flow and the temperature field are given.

Keywords

calorimeters; convection; external flows; fission reactor cooling; fission reactor instrumentation; fission reactor theory; numerical analysis; radiometry; calorimeter head; calorimeter response; convective heat transfers; external flow effect; full 3D simulations; nuclear heating measurements; radiometric calorimeter; sensitivity control; temperature field; 3D Modeling; Calorimetry; Instrumentation; Nuclear heating;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE

Conference_Location

Anaheim, CA

ISSN

1082-3654

Print_ISBN

978-1-4673-2028-3

Type

conf

DOI

10.1109/NSSMIC.2012.6551110

Filename

6551110