Numerical and Experimental Analysis of the 3D Flow-Pattern in Exhaust Gas Sensors

2004 ◽  
Author(s):  
Sascha Klett ◽  
Manfred Piesche ◽  
Helmut Weyl ◽  
Hans-Martin Wiedenmann ◽  
Uwe Schneider ◽  
...  
Keyword(s):  
Flow Pattern ◽  
Gas Sensors ◽  
Experimental Analysis ◽  
Exhaust Gas ◽  
3D Flow

Numerical and Experimental Analysis of the Mass Transfer in Exhaust Gas Sensors

2007 ◽  
Author(s):  
Marc Brück ◽  
Gunda Mader ◽  
Manfred Piesche ◽  
Sascha Klett
Keyword(s):  
Mass Transfer ◽  
Gas Sensors ◽  
Experimental Analysis ◽  
Exhaust Gas

Numerical and Experimental Analysis of the Momentum and Heat Transfer in Exhaust Gas Sensors

2005 ◽  
Author(s):  
Sascha Klett ◽  
Manfred Piesche ◽  
Stefan Heinzelmann ◽  
Helmut Weyl ◽  
Hans-Martin Wiedenmann ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Gas Sensors ◽  
Experimental Analysis ◽  
Exhaust Gas ◽  
Momentum And Heat Transfer

Experimental Characterization of a Swirl Stabilized MGT Combustor

2015 ◽  
Author(s):  
T. O. Monz ◽  
M. Stöhr ◽  
W. O’Loughlin ◽  
J. Zanger ◽  
M. Hohloch ◽  
...  
Keyword(s):  
Flow Field ◽  
Flow Pattern ◽  
Flame Stabilization ◽  
Main Stage ◽  
Exhaust Gas ◽  
Test Rig ◽  
Gas Emissions ◽  
Preheating Temperature ◽  
Exhaust Gas Emissions

A swirl stabilized MGT combustor (Turbec T100) was operated with natural gas and was experimentally characterized in two test rigs, a pressurized and optically accessible MGT test rig and an atmospheric combustor test rig. For the detailed characterization of the combustion processes, planar OH-PLIF and simultaneous 3D-stereo PIV measurements were performed in the atmospheric combustor test rig. Flow fields, reaction zones and exhaust gas emissions are reported for a range of pressure scaled MGT load points. Parameter studies on combustor inlet conditions (e.g. air preheating temperature, air and fuel mass flow rates and fuel split) were conducted in the atmospheric combustor test rig. From the parameters studies the fuel split between the pilot and the main stage and the air preheating temperature were found to have the biggest impact on the flame shape, flame stabilization and exhaust gas emissions. The measurements of the ATM test rig are compared with measurements of the pressurized MGT test rig with and without an optically accessible combustion chamber. Opened and closed conical flame and flow pattern were found in both test rigs. Reasons for the two flame and flow pattern are supposed to be the interaction of pilot stage combustion and flow field and the interaction of the dilution air with the combustion and the flow field. The results are discussed and compared with repect to a transferability of combustion characteristics from the ATM test rig to the MGT test rigs.

Investigation of Flow in a Steam Turbine Exhaust Hood With/Without Turbine Exit Conditions Simulated

2001 ◽  
Author(s):  
Jianjun Liu ◽  
Yongqiang Cui ◽  
Hongde Jiang
Keyword(s):  
Flow Pattern ◽  
Static Pressure ◽  
Navier Stokes ◽  
Steam Turbines ◽  
Exhaust Hood ◽  
Flow Conditions ◽  
3D Flow ◽  
Typical Design ◽  
Turbine Exhaust ◽  
Good Agreement

Experimental and numerical investigations for the flow in an exhaust hood model of large steam turbines have been carried out in order to understand the complex 3D flow pattern existing in the hood and also to validate the CFD solver. The model is a typical design for 300/600 MW steam turbines currently in operation. Static pressure at the diffuser tip and hub endwalls and at hood outer casing is measured and nonuniform circumferential distributions of static pressure are noticed. Velocity field at the model exit is measured and compared with the numerical prediction. The multigrid multiblock 3D Navier-Stokes solver used for the simulations is based upon the TVD Lax-Wendroff scheme and the Baldwin-Lomax turbulence model. Good agreement between numerical results and experimental data is demonstrated. It is found that the flow pattern and hood performance are very different with or without the turbine exit flow conditions simulated.

scholarly journals Experimental analysis of diffusion absorption refrigerator driven by electrical heater and engine exhaust gas

2017 ◽  
Vol 10 ◽  
pp. 255-261 ◽  
Author(s):  
Mohamed Izzedine Serge ADJIBADE ◽  
Ababacar THIAM ◽  
Christophe AWANTO ◽  
Dorothé AZILINON
Keyword(s):  
Experimental Analysis ◽  
Exhaust Gas ◽  
Engine Exhaust ◽  
Electrical Heater ◽  
Absorption Refrigerator ◽  
Diffusion Absorption
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