A dimensionless analysis of radial heat conduction with variable external convection boundary conditions

• Tipo: Artigo em Revista Científica Internacional
• Data: 2001

Autores

Branco, JF (Autor) Outra; C. Pinho (Autor) FEUP; Figueiredo, RA (Autor) Outra

Revista

Título: International Communications in Heat and Mass Transfer

Vol. 28

Páginas: 489-497

ISSN: 0735-1933

Editora: Elsevier

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-000-VNH

DOI: 10.1016/s0735-1933(01)00253-6

Abstract (EN): Radial heat conduction in insulated pipes under external convection is usually dealt with great detail in several heat transfer publications. However, an analysis carried out through the graphical representation of the dimensionless characteristic parameters, will allow a better understanding of the phenomenon. Here the dependence of the convection coefficient on the external radius and external surface temperature, typical of forced and free convection, is taken into account. Assuming a power law variation of the convection coefficient [l] and using the results of Sparrow [2], all the important dimensionless parameters, including the critical radius, are explicitly represented and compared with those arising in the case of the insulated sphere [3]. (C) 2001 Elsevier Science Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9