Papers by Author: Angel M. Estévez

Abstract: Research and applications of magnetically stabilized and fluidized beds begun several decades ago, and have maintained their rate of interest during all these years. During last years their applications was diversified, and the application of these beds in the processing of biological materials and in environmental issues has nowadays focused the main attention within this area. In this work we present a brief review of magnetically fluidized and stabilized beds, mainly concerning their theoretical background, heat and mass transfer topics, some industrial and laboratorial setups and applications.

Abstract: Constructing a new device we had to design some vapour-cooled current leads. This current leads are made of Low-Tc material connected with copper wires and some parts of High-Tc material. Its design is calculated keeping in mind the heat transfer by diffusion to a vapour-cooled stream that surrounds the conductive materials. The design and the calculations performed to achieve it, and also the background theory of the heat diffusion applied in this part of the device will be described.