Superconducting resin banded coil: a modified convection coefficient

This paper deals with a modifying factor of the convection coefficient obta ined thanks to the Monte-Carlo method. The aim of this modification is to t ake into account the thickness of the resin which band a thin coil immersed in liquid helium. This allows to reduce the 3-D thermal study to a 2-D pro blem because the diffusion in the resin is taken into account thanks to the modifying factor. To calculate this factor, we consider the variation with temperature and the anisotropy of the thermal conductivity and the specifi c heat of the coil. (C) 1999 Elsevier Science Ltd. All rights reserved.