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Show Xb-2. American Japanese Flame Research Committees 1998 International Symposium October 11-15, Maui, Hawaii ADVANCED COMBUSTION FACILITIES AND DIAGNOSTICS 'j. Dugue, 2W. Von Drasek. 'j.M. Samaniego. :0. Charon. 3T. Oguro Air Liquide, Centre D e Recherche Claude-Delorme. Les Loges-en-Josas. France : American Air Liquide. Chicago Research Center. Countryside. IL. U S A ! Teisan K.K., Harima Technical Center. Harima. Japan ABSTRACT Air Liquide recently completed the commissioning of a new advanced furnace for combustion system development and testing. This flexible, large scale test platform located in France is designed for ox> -natural gas and oxy-heavy fuel oil flames with firing rates up to 2.0 M W . The new furnace is equipped with a continuous probe access slot and a fully automated 3-D traversing system allowing in-flame measurements in horizontal and vertical planes. The addition of this furnace expands Air Liquide's experimental facilities, which include 730 k W and 30 k W test furnaces at the Chicago Research Center. These furnaces can operate at wall temperatures of 1600°C and allow measurements of heat transfer profile, furnace thermal efficiency and flue gas compositions with a high level of accuracy and repeatability. This paper presents details of the new furnace and the associated flame diagnostics specifically designed for in high temperature oxy-flames. The conventional and laser measurement techniques routinely used at the Chicago and the Claude-Delorme Research Centers allow detailed flame characterization for gas composition, local or line-of-sight gas temperature, soot volume fraction. Other optical and imaging teclmiques are used for visualizing O H emission. characterizing burner jet mixing, and identifying spectral content of flame and furnace gases. INTRODUCTION Applications of oxy-fuel combustion technology have been developing steadily in the last years, fueled by a reduction oxygen production costs and emergence of new on-site technology. Today, oxy-combustion is used to increase productivity and fuel efficiency and to reduce pollutant emissions in metals, glass and mineral processing industries. In order to design improved combustion equipment within a short time constraint, the Research and Development teams must rely on a range of efficient experimental and modeling tools. Mathematical modeling and other analytical tools have proven a valuable help to improve burner design, in particular by helping achieve desired flame characteristics with a lower reliance on time-consuming and expensive experimental testing. However, experimental testing remains essential to validate burner concepts and to characterize the influence of burner and furnace parameters on flame geometry, pollutant emissions and heat transfer profile. Beyond burner input/furnace output measurements, detailed flame data is required both for fundamental combustion studies, for validation of improved mathematical sub-models. and for fine-tuning burner design to achieve desired flame characteristics. Air Liquide combustion R&D is carried out at research facilities located in Countryside. Illinois (CRC). and Les Josas. France (CRCD). Both R & D centers are equipped with state of the art high temperature furnaces, high temperature flame diagnostics and mathematical modeling capabilities. The scales of the flames studied van from (30 k W ) laboratory burners for fundamental work to 2.0 M W industrial scale flames. This paper presents an update on the Air Liquide developments on experimental facilities and flame diagnostics. Previous Air Liquide publications on the application of optical diagnosUcs to high temperature oxygen flames can be found in [1-3]. ©1998 American Air Liquide All Rights Reserved. 1 |