Simplified Numerical Simulation of Coal Combustion: Experiments vs. Numerical Simulation - Couverture souple

Nosek, Radovan

 
9783639861433: Simplified Numerical Simulation of Coal Combustion: Experiments vs. Numerical Simulation
Couverture souple
ISBN 10 : 3639861434 ISBN 13 : 9783639861433
Editeur : Scholars' Press, 2015

Synopsis

Fixed bed boilers are widely used to fire coal for heat and power production. However, these systems are often reported to have relatively high unburnout, low efficiency and high emissions, in addition to needing to be optimized and modernized. In this work, the measurements were performed in a test rig, where a combustion front propagates against the airflow. The author decided to use function to describe the simplified profile of emissions. The results obtained from measurements were converted in the form of approximation functions. Furthermore, developed functions were applied for defining the boundary conditions at the interface between the fixed bed and gas phase in FLUENT. The simulations of a domestic boiler have been done and the relative effects of different factors in CFD were evaluated by sensitivity analysis. The validity of the model was verified by measurements which were done in a 25 kW domestic boiler. Model predictions were compared with the experimental gas temperature and species concentration measurements, which were in good agreement. However, at a few measuring positions larger differences between the numerical results and the experiments are still observed.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

À propos de l?auteur

Associate Professor Radovan Nosek was awarded his PhD in Combustion Science by the University of Zilina and Silesian University of Technology, where he spent 20 months in the frame of Marie Curie Research Training Network. Much of his work has focussed on combustion, particulate matters, improving properties of wood pellets and heat recovery.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
Scholars' Press
Date d'édition
2015
Langue
anglais
ISBN 10 
3639861434
ISBN 13 
9783639861433
Reliure
Broché
Nombre de pages
140
Coordonnées du fabricant
non disponible
Personne responsable
non disponible