Radiative heat transfer in a cylindrical mixture of non-gray particulates and molecular gases
Abstract
The interaction between particulate clouds and molecular gases with respect to radiative heat transfer in a one-dimensional cylindrical medium with black walls is investigated. The particulates are assumed to have a non-gray absorption coefficient with a power-law dependence on wavenumber. The absorption coefficient of the molecular gases is described by the exponential wide-band model. Heat transfer rates are found through the evaluation of internal and external total hemispherical emissivities of the particulate cloud and through evaluation of total band absorptances for the molecular gases, modified to account for the interaction with the particles. Simple, closed-form expressions for the total hemispherical emissivities and total band absorptance are also presented, resulting in good accuracy.
- Publication:
-
Journal of Quantitative Spectroscopy and Radiative Transfer
- Pub Date:
- December 1983
- DOI:
- 10.1016/0022-4073(83)90011-0
- Bibcode:
- 1983JQSRT..30..555T
- Keywords:
-
- Cylindrical Chambers;
- Gas-Solid Interactions;
- Molecular Gases;
- Nongray Gas;
- Particulates;
- Radiative Heat Transfer;
- Two Phase Flow;
- Absorptance;
- Clouds;
- Emissivity;
- Laminar Heat Transfer;
- Molecular Absorption