Suscripción a Biblioteca: Guest
Página principal de la Biblioteca Digital de ICHMT Año actual Archivos Comité Ejecutivo Centro Internacional de Transferencia de Calor y Masa

APPLICATION OF OPTICAL THEORIES FOR THE NUMERICAL MODELLING OF THE PARTICLE RADIATION IN COAL COMBUSTION SYSTEMS

Hans-Gerd Brummel
Siemens AG, Power Generation KWU Department: 'Total Plant Thermodynamics, Steam Generators' D-91050 Erlangen, Germany

Sinopsis

To simulate the thermal radiation behaviour of particle laden flows on the basis of a physical approach, a comprehensive computer program was developed for the thermal design of radiant zones of coal combustion or conversion systems. For the description of the governing effects of the particulate phase, i. e. absorption and scattering, the generally valid, but complex Mie-theory was integrated in the radiation code. To reduce the computational effort, larger particles can be treated with the geometrical optics approximation. With the help of these optical theories it is possible to calculate the radiative heat transfer rate for coal combustion systems that operate with higher particle loadings, especially circulating fluidized beds.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH