Effective thermal conductivity and thermal diffusivity of catalysts and their supports as functions of temperature in various gaseous media and in vacuum. III. Radiative component of the thermal conductivity, contact thermal conductivity, and contribution of a gaseous medium to the effective thermal conductivity of granulated porous catalysts and their supports

Autor: Kh. Madzhidov
Rok vydání: 1996
Předmět:
Zdroj: Journal of Engineering Physics and Thermophysics. 69:234-242
ISSN: 1573-871X
1062-0125
DOI: 10.1007/bf02607950
Popis: It is established on the basis of experimental data that heat transfer in loads of granulated porous catalysts and their supports proceeds via intergranule contacts and the gaseous medium that fills pores and intergranule space, and by means of radiative heat transfer between granule surfaces. An equation is obtained that makes it possible to calculate the effective thermal conductivity of catalysts and their supports not investigated experimentally as functions of temperature, granule dimensions, load density, concentration, and type of introduced metallic particles in various gaseous media.
Databáze: OpenAIRE