Доступ предоставлен для: Guest
Главная ICHMT DL Текущий год Архив Исполнительный Комитет ICHMT


DOI: 10.1615/ICHMT.2014.IntSympConvHeatMassTransf.800
pages 1077-1088

Tanju Ergen
Istanbul Technical University, The Faculty of Aeronautics and Astronautics, Maslak, Istanbul, Turkey

Onur Tuncer
Istanbul Technical University, The Faculty of Aeronautics and Astronautics, Maslak, Istanbul, Turkey

A. Cihat Baytas
Istanbul Technical University, Faculty of Aeronautics and Astronautics, 34469 Maslak Istanbul, Turkey


It is most important that a fuel be burnt in a fashion that shall least pollute the environment. In this regard every day new legislation are passed restricting emissions. A second important issue is to obtain high density thermal energy via enhanced volumetric heat release. Porous media combustion offer solutions that address both these issues. In this study, we performed several numerical analyses of a symmetrical two-dimensional problem to investigate combustion in a 5 kW porous burner and thermal efficiency of our design. Solution domain consists of four sub-domains, two porous regions in tandem (first with low porosity and second with high porosity), a water tank with constant flow rate and a solid wall in between those. In order to achieve our goals, methane-air is used as reactant mixture for combustion with different excess air ratios and for the purpose of optimizing our design various water flow velocities are tested for each excess air ratio. Navier-Stokes, energy (thermal equilibrium model) and species transport equations are solved in two-dimensional symmetrical model. A two step methane oxidation mechanism is utilized. Velocities, temperature distributions in both combustion zone and water tank, temperature distribution in the axial direction at the centerline of the combustion zone and heat transfer from combustion zone to water are presented.

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