| Téléchargement | - Voir le manuscrit accepté : Evaluation of solution methods for radiative heat transfer in gaseous oxy-fuel combustion environments (PDF, 764 Kio)
|
|---|
| DOI | Trouver le DOI : https://doi.org/10.1016/j.jqsrt.2010.04.028 |
|---|
| Auteur | Rechercher : Porter, R.; Rechercher : Liu, F.1; Rechercher : Pourkashanian, M.; Rechercher : Williams, A.; Rechercher : Smith, D. |
|---|
| Affiliation | - Conseil national de recherches du Canada. Institut de technologie des procédés chimiques et de l'environnement du CNRC
|
|---|
| Format | Texte, Article |
|---|
| Sujet | Radiative transfer; Non-gray gas models; Full spectrum k-distribution; Discrete ordinates method; Oxy-fuel combustion; Computational fluid dynamics |
|---|
| Résumé | The exact solution to radiative heat transfer in combusting flows is not possible analytically due to the complex nature of the integro-differential radiative transfer equation (RTE). Many different approximate solution methods for the solution of the RTE in multi-dimensional problems are available. In this paper, two of the principal methods, the spherical harmonics (P1) and the discrete ordinates method (DOM) are used to calculate radiation. The radiative properties of the gases are calculated using a non-gray gas full spectrum k-distribution method and a gray method. Analysis of the effects of numerical quadrature in the DOM and its effect on computation time is performed. Results of different radiative property methods are compared with benchmark statistical narrow band (SNB) data for both cases that simulate air combustion and oxy-fuel combustion. For both cases, results of the non-gray full spectrum k-distribution method are in good agreement with the SNB data. In the case of oxy-fuel simulations with high partial pressures of carbon dioxide, use of gray method for the radiative properties may cause errors and should be avoided. |
|---|
| Date de publication | 2010-05-01 |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Numéro du CNRC | NRCC 52876 |
|---|
| Numéro NPARC | 17719189 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 19b103f9-8f87-47e4-a81b-c937aefb499f |
|---|
| Enregistrement créé | 2011-05-18 |
|---|
| Enregistrement modifié | 2020-04-17 |
|---|
