Optimization of refrigerated shields using multilayer thermal insulatin: Cryostats design - analytical solution

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

augusto, pa (Autor) Outra; castelo-grande, t (Autor) Outra; Augusto, P (Autor) Outra; barbosa, d (Autor) FEUP

Revista

Título: Cryogenics

Vol. 46

Páginas: 449-457

ISSN: 0011-2275

Editora: Elsevier

Indexação

ISI Web of Knowledge - 5 Citações

Scopus - 8 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia mecânica

Outras Informações

ID Authenticus: P-004-KBV

DOI: 10.1016/j.cryogenics.2006.02.002

Abstract (EN): Although many cryostats have been designed with refrigerated shields covered by multilayer thermal insulation, the theory behind it has not yet been fully developed. In this paper, a thermodynamic analysis is made to minimize the power consumption of cryogenic systems containing refrigerated shields, considering all the design variables (temperatures, number of layers/cm present in the insulation and refrigeration efficiencies). In what concerns the temperature optimization, the theory of Eyssa and Okasha is extensively revised and improved, and analytical solutions are presented. We also analyze several typical cases concerning some optimization options.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9