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Three-dimensional modeling of utility boiler pulverized coal tangentially fired furnace
(Pergamon-Elsevier Science Ltd, Oxford, 2006)
This paper presents selected results of numerical simulations of processes in utility boiler pulverized coal tangentially fired dry-bottom furnace. The simulations have been performed by specially developed comprehensive ...
Condensation induced non-condensables accumulation in a non-vented vertical pipe
(Pergamon-Elsevier Science Ltd, Oxford, 2005)
At the end of the year 2001 the radiolytic gases hydrogen and oxygen accumulated and exploded in non-vented steam pipelines at two nuclear power plants. The HELIO code has been developed for the numerical simulation and ...
Influence of mechanical activation on the structure of ultrafine BaTiO3 powders
(Elsevier Science Sa, Lausanne, 2009)
The influence of mechanical activation in a planetary ball mill on the change of the structure of BaTiO3 powders has been investigated. The particle size distribution of the nonactivated and activated samples was measured ...
Sustainable development of the Belgrade energy system
(Pergamon-Elsevier Science Ltd, Oxford, 2009)
Cities are the most important energy consumers of any country in all energy vector components. Nowadays, Belgrade as a cultural, educational, scientific, administrative, political, and business center of the region with ...
A numerical study of a utility boiler tangentially-fired furnace under different operating conditions
(Elsevier Sci Ltd, Oxford, 2008)
For prediction of complex processes in two-phase turbulent reactive flows within large-scale boiler furnaces firing pulverized coal, a comprehensive 3D differential mathematical model and CFD computer code have been developed ...
Three-dimensional numerical simulation of non-condensables accumulation induced by steam condensation in a non-vented pipeline
(Pergamon-Elsevier Science Ltd, Oxford, 2006)
A substantial increase of the concentration of non-condensable gases in the mixture with steam can occur in a non-vented pipeline due to the condensation. This phenomenon is investigated with the thermal-hydraulic and ...
Three-fluid model predictions of pressure changes in condensing vertical tubes
(Pergamon-Elsevier Science Ltd, Oxford, 2008)
Pressure changes in annular downward flows of condensing steam in vertical tubes are predicted with a three-fluid model. Several available correlations for the steam-liquid film interfacial friction are applied in the ...
Investigation on thermal radiation spectra of coal ash deposits
(Pergamon-Elsevier Science Ltd, Oxford, 2009)
This paper deals with thermal radiation properties of ash deposits on a pulverized coal boiler of an electric power plant. Normal emittance spectra in the 2.5-25 mu m interval, and total normal emittance, were measured on ...
Modeling the temperature in coal char particle during fluidized bed combustion
(Elsevier Sci Ltd, Oxford, 2008)
The temperatures of a coal char particle in hot bubbling fluidized bed (FB) were analyzed by a model of combustion. The unsteady model includes phenomena of heat and mass transfer through a porous char particle, as well ...
Heat transfer rate of direct-contact condensation on baffle trays
(Pergamon-Elsevier Science Ltd, Oxford, 2008)
The paper deals with the experimentally obtained results of the direct-contact condensation of steam in contact with water in cascade column. Baffle trays were used to obtain contact between water and steam in DN 300 column ...