Relevant bibliographies by topics / Low-NOx burner

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Low-NOx burner'

Author: Grafiati
Published: 4 June 2021
Last updated: 12 February 2022

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Journal articles on the topic "Low-NOx burner"

1

VANDERDRIFT, A. "Low-NOx hydrogen burner." International Journal of Hydrogen Energy 21, no. 6 (June 1996): 445–49. http://dx.doi.org/10.1016/0360-3199(95)00105-0.

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Terada, Shinya, Ryosuke Matsumoto, Isao Ishihara, and Mamoru Ozawa. "F161 Development of Low-NOx Diffusion Burner." Proceedings of the Thermal Engineering Conference 2005 (2005): 255–56. http://dx.doi.org/10.1299/jsmeted.2005.255.

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McVey, J. B., F. C. Padget, T. J. Rosfjord, A. S. Hu, A. A. Peracchio, B. Schlein, and D. R. Tegel. "Evaluation of Low-NOx Combustor Concepts for Aeroderivative Gas Turbine Engines." Journal of Engineering for Gas Turbines and Power 115, no. 3 (July 1, 1993): 581–87. http://dx.doi.org/10.1115/1.2906746.

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An experimental program was conducted to evaluate low-NOx combustor concepts applicable to natural-gas-burning aeroderivative gas turbine engines operating at a nominal pressure ratio of 20:1. Gas sampling measurements at the exit of the primary zone of high-shear and lean premixed burners were acquired under elevated entrance pressure and temperature conditions over a range of primary zone equivalence ratios. Piloting systems were incorporated in most of the burner designs to achieve satisfactory burner operability. Both swirl stabilized and perforated-plate (grid) stabilized burners were found to produce NOx levels lower than the current engine goal of 25 ppm (15 percent O2).
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Andrews, G. E., H. S. Alkabie, M. M. Abdul Aziz, U. S. Abdul Hussain, N. A. Al Dabbagh, N. A. Ahmad, A. F. Ali Al Shaikly, M. Kowkabi, and A. R. Shahabadi. "High-Intensity Burners with Low Nox Emissions." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 206, no. 1 (February 1992): 3–17. http://dx.doi.org/10.1243/pime_proc_1992_206_003_02.

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Experimental combustion and NOx emissions results are summarized for a range of jet shear layer combustion systems that have rapid fuel and air mixing, short intense flames, a high turn-down ratio and low NOx characteristics. Two burner sizes of 76 and 140 mm are investigated for propane and natural gas. Three jet shear layer burners are compared with axial and radial swirlers. The combustion techniques were developed for application to low NOx combustion systems for industrial gas turbines, where NOx emissions as low as 10 ppm at 15 per cent oxygen have been demonstrated. It is shown that at one bar pressure, gas turbine combustors and high-intensity burners operate at similar air flow, blockage and pressure loss conditions.
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MATSUMOTO, Keigo, Koutarou Fujimura, Kazuhiro DOMOTO, Naofumi ABE, and Jun KASAI. "E110 Development of innovative low NOx coal burner." Proceedings of the National Symposium on Power and Energy Systems 2010.15 (2010): 191–92. http://dx.doi.org/10.1299/jsmepes.2010.15.191.

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Bussman, Wes, Roger Poe, Bob Hayes, Jason McAdams, and Jay Karan. "Low NOx burner technology for ethylene cracking furnaces." Environmental Progress 21, no. 1 (April 2002): 1–9. http://dx.doi.org/10.1002/ep.670210107.

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Amano, Iwamaro, Shigeharu Kokuryo, and Keigo Matsumoto. "Low NOx Burner for Coal Fired Steam Generator." JAPAN TAPPI JOURNAL 68, no. 6 (2014): 625–28. http://dx.doi.org/10.2524/jtappij.68.625.

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MATSUMOTO, Ryosuke, Mamoru OZAWA, Isao ISHIHARA, Shingo SASAKI, and Masahiro TAKAICHI. "Development of Low-NOx DME Multi-Port Burner." JSME International Journal Series B 49, no. 2 (2006): 245–52. http://dx.doi.org/10.1299/jsmeb.49.245.

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Kim, Se Won, Chang Yeop Lee, and Min Jun Kwon. "Studies on the Ultra-Low NOx Burner Technology Using Partial Oxidation Reaction." Applied Mechanics and Materials 704 (December 2014): 93–97. http://dx.doi.org/10.4028/www.scientific.net/amm.704.93.

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A new concept of low NOx burner, based on a partial oxidation combustion concept, is successfully applied in this research. The burner is designed such that a portion of liquid fuel is heated and pre-vaporized in the furnace then injected into a fuel rich combustion zone so that a partial oxidation reaction occurs. The effects of equivalence ratio, thermal load, and fuel distribution ratio on the emissions of NOx and CO are experimentally investigated. This newly developed burner showed very low NOx emission level, about 12 ppm, when light oil is used as a fuel.
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Bee´r, J. M., M. A. Toqan, J. M. Haynes, and R. W. Borio. "Development of the Radially Stratified Flame Core Low NOx Burner: From Fundamentals to Industrial Applications." Journal of Engineering for Gas Turbines and Power 126, no. 2 (April 1, 2004): 248–53. http://dx.doi.org/10.1115/1.1688767.

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Research and development of the low NOx radially stratified flame core (RSFC) burner is followed from its fundamental concept through prototype burner design, pilot scale experiments at M.I.T. and scale-up and commercial design by ABB-CE (now ALSTOM Power) to applications in industrial and utility plant boilers. The principle that turbulence can be significantly damped in a rotating flow field with a strong positive radial density gradient was used to increase the fuel rich zone residence time in internally staged low NOx burners. The continuous interaction of ideas from laboratory experimental and computational studies with those from the commercial design and industrial scale tests played a pivotal role in the development of the final product, the commercial RSFC burner. Examples of application in gas, oil, and coal fired industrial and utility boilers are discussed.
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Dissertations / Theses on the topic "Low-NOx burner"

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O'Nions, Phillip. "Low NOx combustion utilising a Coanda ejector burner." Thesis, University of Sheffield, 1998. http://etheses.whiterose.ac.uk/14674/.

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Current and future pollutant enussion legislation calls for decreased NOx emissions from combustion systems. A review of techniques used for NOx abatement led to the choice of combustor redesign to be the most cost effective method available. This led to the design, construction and development of a combustion system that utilised a Coanda ejector to generate recirculation of the exiting high temperature combustion products to mix with the air supply. Cooling of the burner was integrated into the design through the use of the air and fuel supplies. Computational fluid dynamics was used to model and aid development of the design. The model was used to predict NOx and CO emissions and the fuel-air mixing pattern. This, along with an analysis of experimental results and observations led to an understanding of the burner operation with respect to pollutant emissions and stability. NOx emissions from the Coanda burner were found to be lowest when using a 0.2 mm Coanda gap width, resulting in 16 ppm NOx being emitted at an air to fuel ratio of 1.5. However, the use ofa 0.2 mm Coanda gap width required an air supply pressure of up to 4 bar. The use of a 0.5 mm Coanda gap width enabled burner operation at lower air supply pressures. The resulting NOx emissions were measured as 23 ppm at an air to fuel ratio of 1.I, with a corresponding exit gas temperature of 2200 K. Flue gas recirculation quantity, flame stability, flame stabiliser shape and operational limits proved to be inter-linked in the reduction of NOx emissions. It was found that fuel-air mixing was controlled by the entrainment properties of the Coanda ejector and the flame stabiliser. The average oxygen concentration entering the combustion chamber when using a 0.2 mm and 0.5 mm Coanda gap width was 13.7 % and 16.6 %, respectively. Due to the position of the fuel injector, a fuel rich region formed behind the flame stabiliser. With a suitable flame stabiliser geometry and the use of 'fingers', low NOx combustion and flame stability was achieved near stoichiometric conditions. It was shown that the design of the burner enabled very low pollutant emissions near stoichiometric conditions, resulting in high exit gas temperatures. Conceivable applications of this type of burner could lie in small and intermediate furnaces where low NOx emissions are required. Additionally, very high temperature applications, such as glass furnaces could benefit in both cost and pollutant emissions from such a burner.
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Spangelo, Øystein. "Experimental and Theoretical Studies of a Low Nox Swirl Burner." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, 2004. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-310.

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Nitrogen oxides emitted to the atmosphere can cause health problems for humans and environmental problems such as acid rain and global warming. The main part of the world energy consumption involves combustion; hence nitrogen oxide abatement in combustion is an important research field. Formation and reduction of NOx in combustion and the current regulations on NOx emissions are reviewed.

A novel low NOx swirl stabilized gas burner concept, the Swirl Burner, has been studied experimentally, theoretically and numerically. Flame stabilization, rapid air and fuel mixing and internal flue gas recirculation are provided by a strongly swirling flow generated in this patented burner concept. NOx emissions have been measured below 25 and 45 ppmv dry corrected to 3% O2 in the flue gases using methane and propane as fuel respectively.

Studying the effect of varying geometrical parameters on the emissions of NOx, fuel and air supply pressure and flame stability, have resulted in an optimized burner design. The optimized Swirl Burner has successfully been scaled from a 200 kW burner down to a 20 kW burner and up to a 370 kW burner, using a constant velocity scaling criteria which is the most commonly used scaling criteria for industrial burners. Experiments with the scaled burners have revealed that the fuel to air momentum should be preserved while scaling the burner. The 200 kW and the 370 kW burners were operated stable with the boiler to burner diameter (confinement) ratio in the range 5.3-6.7. The 20 kW burner, which was operated in an un-cooled and a water-cooled combustion chamber with confinement ratio of 8.1, was found to have a narrower range of stable operation with regards to thermal throughput. High post-flame heat extraction, which is enhanced by increased confinement ratio and combustion chamber cooling, reduces the emissions of NOx, but might cause flame instabilities.

NOx emissions measured from the three Swirl Burners scale well with NOx scaling correlations based on flame volume as a leading-order parameter for NOx formation (Weber, 1996). The correlations consider the effect of heat extraction on flame volume and emissions of NOx. These correlations indicate that the heat extraction from the 20 kW burner is increasing with increasing thermal throughput. The 200 kW and the 370 kW burners were, from the correlations, found to operate with constant heat extraction.

Flame volume and shape are studied by non-intrusive measurements of OH radicals with the 20 kW burner using laser induced fluorescence. The measurements show that the flame volume is reduced with increasing thermal throughput. Measurements of NOx from this burner also show a reduction with increasing thermal throughput. These results support the theoretical considerations of the flame volume as being the leading-order parameter for NOx formation.

An evaluation of turbulence models and combustion models suitable for studying the Swirl Burner by computational fluid dynamics has been carried out. For this evaluation, a 2D computational model of the 20 kW burner has been used. For closure of the Reynolds Averaged Navier-Stokes equations for turbulent flow, three models have been evaluated.

These are the standard k-ε model, the RNG k-ε model and the Reynolds Stress model.

Also for modelling of combustion, three models have been evaluated, namely the Eddy Dissipation model, the Equilibrium PDF model and the Flamelet PDF model. For studying the Swirl Burner, a combination of the Reynolds Stress model and the Flamelet PDF model were found to be most suitable for modelling of turbulence and combustion respectively.

Computational results with the 20 kW burner indicate that flue gases are recirculated into a central toroidal recirculation zone downstream the burner exit. The computations are further compared with the OH concentrations measured with laser induced fluorescence.

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Mohammadi, Peyman. "DLE burner water rig simulations." Thesis, Mälardalen University, Department of Computer Science and Electronics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-626.

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In today’s industrial world, there are high demands on the environmental aspects.

Siemens Industrial Turbomachinery AB (SIT AB) is a company that is keen about the environment, and therefore spends a lot of effort in developing combustion processes in order to reduce NOx (nitrogen oxides) emissions on their engine products. They are also researching in optional fuels, which are more environment-friendly.

In order to provide lower emissions the SIT designed a water rig to study the flow dynamics in a DLE (Dry Low Emission) burner.

An analyze program (GUI horizontal) was developed with new functions and the existing functions were improved. The program’s function was to evaluate different experimental tests of the flow dynamics in the 3rd generation DLE burners, of the SGT-800 gas turbine engine.

The aim was to ensure repeatability to enhance reliability, of the experimental test results for further comparison, for upcoming projects concerning future DLE burners.

When repeatability was achieved, implementations of different geometrical modifications were performed in the 3rd generation DLE burner.

The reason of the geometrical alterations was to look over if better fuel air mixture could be obtained and accordingly (thus) to reduce hotspots in the burner and in that case reduce NOx emissions.

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Wu, Chunyang. "Fuel-NOx Formation during Low-Grade Fuel Combustion in a Swirling-Flow Burner." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1165.pdf.

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Yimer, Ibrahim A. "Turbulent mixing in a low-NOx multi-jet burner, experimental and mathematical modelling." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0002/NQ27863.pdf.

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Cvoro, Valentina. "Experimental and numerical analysis of isothermal turbulent flows in interacting low NOx burners in coal-fired furnaces." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/2020.

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Coal firing power stations represent the second largest source of global NOx emissions. The current practice of predicting likely exit NOx levels from multi-burner furnaces on the basis of single burner test rig data has been proven inadequate. Therefore, to further improve current NOx reduction technologies and assist in the assessment of NOx levels in new and retrofit plant cases, an improved understanding of the impact of burner interactions is required. The aim of this research is two-fold: firstly, to experimentally investigate isothermal flow interactions in multi-burner arrays for different swirl directions and burner pitches in order to gain a better understanding of burner interaction effects within multi-burner furnaces. Secondly, to carry out numerical modelling in order to determine turbulence models which give the best agreement to experimental data. Experimental investigations were carried out using flow visualisation for qualitative and 3D laser Doppler anemometry for quantitative measurements. Numerical modelling was performed using the computational fluid dynamics software, Fluent, to compare performance between k-ε, k- ω and RSM turbulence models. Experimental investigation showed that the recirculation zone of the chequerboard configuration is more sensitive to the change in pitch than that of the columnar configuration. Further, it was found that the smaller pitch is more sensitive to change in configuration than the wider pitch. The analysis of fluctuating components, u’, v’ and w’ showed that the burner flow is highly anisotropic at burner exit. Numerical investigation showed that the k-ω turbulence model consistently performed below the other two models. The statistical comparison between k-ε and RSM turbulence models revealed that, for prediction of the swirl velocity profiles, the RSM model overall performed better than the k-ε turbulence model. The visual and statistical analyses of turbulent kinetic energy profiles also showed that the RSM turbulence model provides a closer match to the experimental data than the k-ε turbulence model.
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Kaufman, Kelsey Leigh. "Effect of hydrogen addition and burner diameter on the stability and structure of lean, premixed flames." Thesis, University of Iowa, 2014. https://ir.uiowa.edu/etd/4661.

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Low swirl burners (LSBs) have gained popularity in heating and gas power generation industries, in part due to their proven capacity for reducing the production of NOx, which in addition to reacting to form smog and acid rain, plays a central role in the formation of the tropospheric ozone layer. With lean operating conditions, LSBs are susceptible to combustion instability, which can result in flame extinction or equipment failure. Extensive work has been performed to understand the nature of LSB combustion, but scaling trends between laboratory- and industrial-sized burners have not been established. Using hydrogen addition as the primary method of flame stabilization, the current work presents results for a 2.54 cm LSB to investigate potential effects of burner outlet diameter on the nature of flame stability, with focus on flashback and lean blowout conditions. In the lean regime, the onset of instability and flame extinction have been shown to occur at similar equivalence ratios for both the 2.54 cm and a 3.81 cm LSB and depend on the resolution of equivalence ratios incremented. Investigations into flame structures are also performed. Discussion begins with a derivation for properties in a multicomponent gas mixture used to determine the Reynolds number (Re) to develop a condition for turbulent intensity similarity in differently-sized LSBs. Based on this requirement, operating conditions are chosen such that the global Reynolds number for the 2.54 cm LSB is within 2% of the Re for the 3.81 cm burner. With similarity obtained, flame structure investigations focus on flame front curvature and flame surface density (FSD). As flame structure results of the current 2.54 cm LSB work are compared to results for the 3.81 cm LSB, no apparent relationship is shown to exist between burner diameter and the distribution of flame surface density. However, burner diameter is shown to have a definite effect on the flame front curvature. In corresponding flow conditions, a decrease in burner diameter results a broader distribution of curvature and an increased average curvature, signifying that compared to the larger 3.81 cm LSB, the flame front of the smaller burner contains tighter, smaller scale wrinkling.
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Zejda, Vojtěch. "Měření rychlostních profilů za vířičem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232121.

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A burner is very important device in process furnaces that significantly affect the production of emissions during the combustion process. One of the key things in development of the modern low-NOX burners is the evaluation of flow field downstream of an axial blade swirler inside the burner. The computational fluid dynamics (CFD) is often used to predict the attributes of the flow. Predicted values should be validated with measurement. It is the reason why the velocity fields for several choosen swirlers were measured. The hot wire anemometry was choosen and the dual-sensor probe was used during the measurement. The data can be then used for CFD validation. This thesis describes procedure of measurement set-up. The experimental facility was designed according to the anemometry method. The new probe traversing system was designed, which provides desired accuracy. Five different swirlers were measured. Large data set, need for customized post-processing and control over calculation procedures lead to new software design. For each swirler the velocity profiles were gathered and the swirl numbers calculated. That final data were transferred in to graphical format. Uncertainty of measured data was calculated. Results show counter-rotating flow in some areas closed to the swirler. Some drawbacks of current measurement set-up are discussed. Based on the thesis reader can obtain the information and knowledge for consequent measurements of swirl burners velocity profiles.
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Rendon, Arturo Keer. "Fundamentals of low NOx burners." Thesis, University of Sheffield, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387763.

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Nykodým, Jiří. "Vliv provozních parametrů spalování a konstrukčních parametrů nízkoemisního hořáku na charakteristické parametry spalovacích procesů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232142.

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The main aim of the work was the investigation of the effect of operational parameters of the combustion process (combustion air excess, primary fuel ratio) and burner constructional parameters (the pitch angle of secondary nozzles, tangential orientation of secondary nozzles towards the axis of the burner) on the formation of NOx and CO, flue gas temperature, the shape, dimensions and stability of the flame, in-flame temperatures in the horizontal symmetry plane of the combustion chamber and the amount of heat extracted from the hot combustion gases in the combustion chamber’s shell. Experimental activities were carried out in the laboratory of the Institute of Process and Environmental Engineering, which is focused on burners testing. The combustion tests were performed with the experimental low-NOx type burner, namely the two-gas-staged burner. Mathematical model developed based on the experimental data describes the dependency of NOx on the operating parameters of the combustion process and burner constructional parameters. The model shows that increasing air excess and increasing angle of tangential orientation of the secondary nozzles reduce the formation of NOx. The temperature peaks in the horizontal symmetry plane of the combustion chamber decreases with increasing combustion air excess. The thermal load to the combustion chamber’s wall along the length of the flame was evaluated for selected settings. It was validated that the thermal efficiency of is reduced when higher air excess is used.
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Books on the topic "Low-NOx burner"

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England, G. C. Evaluation and demonstration of low-NOx burner systems for TEOR steam generators: Final report--field evaluation of commercial prototype burner. Research Triangle Park, NC: U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1985.

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England, G. C. Evaluation and demonstration of low-NOx burner systems for TEOR steam generators: Final report--field evaluation of commercial prototype burner. Research Triangle Park, NC: U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1985.

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Castaldini, Carlo. Environmental assessment of an enhanced oil recovery steam generator equipped with a low-NOx burner. Research Triangle Park, NC: U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1986.

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Mongeon, R. K. Wall-fired boiler design criteria for dry sorbent SOb2s control with low-NOx burners. Research Triangle Park, NC: U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1988.

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Mongeon, R. K. Wall-fired boiler design criteria for dry sorbent SOb2s control with low-NOx burners. Research Triangle Park, NC: U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1988.

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Clark, J. P. Boiler design criteria for dry sorbent SOb2s control with low-NOx burners: New unit applications. Research Triangle Park, NC: U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1987.

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Design and development of a low NOx regenerative burner. Harwell: ETSU, 1994.

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A, Abele, and Air and Energy Engineering Research Laboratory, eds. Prototype evaluation of commercial second generation low-NOx burner performance and sulfur dioxide capture potential. Research Triangle Park, NC: U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, 1985.

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Demonstration of low-NOx burner retrofit for dual-fuel package boilers: Equipment selection criteria and initial findings. [Champaign, IL]: US Army Corps of Engineers, Construction Engineering Research Laboratory, 1992.

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United States. Dept. of Energy. Office of Clean Coal Technology and TransAlta Resources Investment Corporation, eds. Comprehensive report to Congress, Clean Coal Technology Program: Low NOx/SOx burner retrofit for utility cyclone boilers. Washington, DC: U.S. Dept. of Energy, Assistant Secretary for Fossil Energy, Office of Clean Coal Technology, 1990.

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Book chapters on the topic "Low-NOx burner"

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Chu, E. K., H. Dehne, M. L. Joshi, and R. Gemmer. "Low-NOx, Burner for Glass-Melting Furnaces-The Hi-Rad Burner." In A Collection of Papers Presented at the 53nd Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 14, Issue 3/4, 126–38. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470314098.ch11.

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Rue, David, Hamid Abbasi, David Neff, and Patrick Mohr. "A High-Efficiency, Low-NOx Burner for Oxy-Gas Glass Furnaces." In 59th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 20, Issue 1, 227–41. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470294536.ch17.

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Leroux, Bertrand, Pascal Duperray, Patrick Recourt, Rémi Tsiava, Nicolas Perrin, and George Todd. "Alglass Sun: An Ultra-Low-Nox Oxy Burner for Glass Furnaces with Adjustable Length and Heat Transfer Profile." In 64th Conference on Glass Problems: Ceramic Engineering and Science Proceedings, Volume 25, Issue 1, 117–28. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470294857.ch8.

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Zhang, Q., J. Zhou, C. Zhao, N. Ding, and J. Xu. "The numerical simulation and experimental research of Low-NOx burner retrofittingon a 420 T/h utility boiler." In Frontiers of Energy and Environmental Engineering, 184–87. CRC Press, 2012. http://dx.doi.org/10.1201/b13718-42.

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Mansour, M. N., Y. Kwan, M. P. Grant, and J. B. Champion. "U.S. EXPERIENCE WITH ADVANCED LOW NOx BURNERS FOR ELECTRIC UTILITY BOILER APPLICATIONS." In The Institute of Energy's Second International Conference on Combustion & Emissions Control, 285–94. Elsevier, 1995. http://dx.doi.org/10.1016/b978-0-902597-49-5.50030-5.

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Debier, M. "THE USE OF SILICON CARBIDE CERAMIC IN HIGH PERFORMANCE RADIANT TUBE BURNERS AND LOW NOX OPEN FLAME BURNERS." In The Institute of Energy's Second International Conference on Ceramics in Energy Applications, 137–51. Elsevier, 1994. http://dx.doi.org/10.1016/b978-0-08-042133-9.50014-9.

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THOMAS, M. D. A., and D. J. HARRISON. "A COMPARISON OF THE PROPERTIES OF FLY ASH FROM ORDINARY AND LOW NOx BURNERS." In Blended Cements in Construction, 56–63. CRC Press, 1991. http://dx.doi.org/10.1201/9781482296631-5.

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Conference papers on the topic "Low-NOx burner"

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Munko, Andreas, Fernando Luiz Câmara Campos Junior, Matthias Bergmann, Maycon Athayde, Robert Maduta, and Tobias Heyd. "LOW NOX BURNER FOR PELLETIZING PLANTS." In 46º Seminário de Redução/ 17º Minério de Ferro/ 4º Aglomeração. São Paulo: Editora Blucher, 2016. http://dx.doi.org/10.5151/2594-357x-28029.

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Asai, Tomohiro, Hiromi Koizumi, Satoschi Dodo, Hirokazu Takahashi, Shouhei Yoshida, and Hiroshi Inoue. "Applicability of a Multiple-Injection Burner to Dry Low-NOx Combustion of Hydrogen-Rich Fuels." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-22286.

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To demonstrate the applicability of a “multiple-injection burner” to dry low-NOx combustion of hydrogen-rich fuels, the combustion characteristics of a burner were experimentally investigated. The experimental results show that a burner with a flame lift-off length of 5 mm and a fuel-injection-hole diameter of 1.5 mm achieves low NOx concentration of less than 6 ppm for hydrogen-rich fuels with a wide range of hydrogen concentrations. This finding demonstrates that the burner achieves dry low-NOx combustion of these hydrogen-rich fuels without need for any modification of the burner’s configuration. Moreover, it was found that fuel distribution, fuel composition, flame lift-off length, and fuel-jet velocity have significant effects on the burners’ combustion characteristics.
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Matsumoto, Ryosuke, Mamoru Ozawa, Isao Ishihara, Shingo Sasaki, and Masahiro Takaichi. "Development of Low-NOx DME Multi-Ports Burner." In ASME 2005 Power Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pwr2005-50349.

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This study focuses on fundamental characteristics of DME combustion, aiming at the development of low-NOx multi-ports burner. Multi-ports burner consists of a fuel-port and surrounding multi-air-ports. The strong re-circulation flow is formed by the small air jets, thus the short flames form a cluster on every burner unit so that the thermal NOx generation is significantly suppressed to a very low level. The NOx emission of the DME from the co-axial diffusion burner was over 130ppm beyond the level of the other fuels. On the other hand; NOx emission of DME from the newly advanced multi-ports burner was reduced to 60ppm at 0% O2. With the help of the low-NOx combustion system, referred to as the tube-nested combustion, NOx emission of DME was further reduced to 20ppm at 0% O2.
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v. d. Bank, Ralf, and Thomas Schilling. "Development of an Ultra-Low NOx LP(P) Burner." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53341.

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Within the EC framework 5 programme LOPOCOTEP Rolls-Royce Deutschland (RRD) continues to develop Lean Premix (Partially Pre-vaporized) (LP(P)) combustion systems to implement the ACARE goals to achieve further NOx reductions compared with the best combustor technology currently available. The results from the previous EC framework 4 programme LowNOx III had been used to calculate DpNOx/Foo values for an ICAO LTO cycle. The result showed that 40% from the CAEP II limit can be achieved for a medium size fan engine. Cycle and mission calculations have risen the hope that total NOx emissions can be reduced by more than 70% for a 800 NM medium range flight. The objective of the current programme is to further reduce the NOx emissions (30% CAEP II) for a more severe engine cycle and therefore a larger burner size compared to the LowNOx III programme. Flash-back and auto-ignition under all operation conditions have to be prevented. A scaling law was derived from the existing database and applied on an LP(P) module which was then tested at pressures of up to 35 bar and temperatures of up to 900 K in a single sector test rig. The applicability of the scaling laws was confirmed. Testing at take-off conditions showed single digit EINOx between 2 and 4 g/kg depending on the actual swirl-generator configuration. However, poor weak extinction was observed and gave concern regarding operability. The decision was taken to redirect the development efforts to improve operability and to increase the lean blow out (LBO) air-fuel-ratio (AFR). This led to the integration of an internal, centrally arranged pressure-swirl atomizer as pilot diffusion burner into the LP(P) burners. Due to an optimization of the aerodynamics of the LP(P) module which was performed at the same time the dimensions of the burner could be reduced while the effective area was kept constant. This burner was then initially tested at atmospheric conditions to address ignition and LBO limit. This burner showed excellent ground ignition capability at air temperatures as low as 350 K. In the best configuration one spark was sufficient. The testing of the lean extinction limit was repeatedly verified. At 350 K the LBO was always in the range between 110–130 OAFR. More detailed investigations on emissions, flash-back and auto-ignition characteristics will be performed at ONERA and Lund University.
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McVey, J. B., F. C. Padget, T. J. Rosfjord, A. S. Hu, A. A. Peracchio, B. Schlein, and D. R. Tegel. "Evaluation of Low NOx Combustor Concepts for Aeroderivative Gas Turbine Engines." In ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/92-gt-133.

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An experimental program was conducted to evaluate low NOx combustor concepts applicable to natural-gas-burning aeroderivative gas turbine engines operating at a nominal pressure ratio of 20:1. Gas sampling measurements at the exit of the primary zone of high-shear and lean premixed burners were acquired under elevated entrance pressure and temperature conditions over a range of primary zone equivalence ratios. Piloting systems were incorporated in most of the burner designs to achieve satisfactory burner operability. Both swirl stabilized and perforated-plate (grid) stabilized burners were found to produce NOx levels lower than the current engine goal of 25 ppm (15% O2).
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Bee´r, J. M., M. A. Toqan, J. M. Haynes, and R. W. Borio. "Development of the RSFC Low NOx Burner: From Fundamentals to Industrial Applications." In 2002 International Joint Power Generation Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ijpgc2002-26198.

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Research and development of the low NOx Radially Stratified Flame Core (RSFC) burner is followed from its fundamental concept through prototype burner design, pilot scale experiments at MIT and scale-up and commercial design by ABB-CE (ALSTOM) to applications in industrial and utility plant boilers. The principle that turbulence can be significantly damped in a rotating flow field with a strong positive radial density gradient was used to increase the fuel rich zone residence time in internally staged low NOx burners. The continuous interaction of ideas from laboratory experimental and computational studies with those from the commercial design and industrial scale tests played a pivotal role in the development of the final product, the commercial RSFC burner. Examples of application in gas, oil, and coal fired industrial and utility boilers are discussed.
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Ramadan, Omar B., J. E. Donald Gauthier, Patrick M. Hughes, and Robert Brandon. "Experimental Investigation and Evaluation of a Low NOx Natural Gas-Fired Mesh Duct Burner." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-28350.

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To increase the thermal output of a micro-turbine powered CHP system, a low NOx natural gas-fired, mesh duct burner was designed built and tested. The gas-fired burner was installed in the exhaust duct of a recuperated micro-turbine of a micro-cogeneration unit. The full-scale experimental burner was integrated with an Ingersol-Rand 70 kW micro-turbine system for the evaluation. Three wire-mesh burners with different pressure drops were used. Each burner has a conical shape made from FeCrAL alloy mat (NIT100S by ACOTECH) and their design based on a heat release per unit area of 2500 kW/m2 and a total heat release of 240 kW at 100% excess air. The local momentum of the gaseous mixture introduced through the wire-mesh was adjusted so that the flame stabilized outside the burner mesh (surface combustion). Performance of the duct burner was tested and the effect of excess air and firing rate on the stable burning zones, and emissions (NOx, CO) were measured. The range of thermal inputs at which surface combustion was maintained for the duct burner was defined by direct observation of the burner surface and monitoring of the temperature in the combustion zone. Stable combustion with low emission of pollutants was achieved at atmospheric pressure for a firing rate range of 175 to 310 kW. The total system (micro-turbine and duct burner) was shown to produce less than 5 ppm NOx for the conditions tested.
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Storm, Stephen K., and Maureen M. Moss. "A Comprehensive Approach to NOx Reduction Without Low NOx Burners." In ASME 2005 Power Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pwr2005-50151.

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The traditional approach to reduce NOx has been to retrofit and install commercially available “plug-in” Low NOx burners. Typically, these use a combination of internal staging and are often used in conjunction with over-fire air to create off-stochiometric or staged combustion. That is, the complete combustion of the fuel occurs in several stages. Often, well designed Low NOx burners are installed without a comprehensive systems approach. The typical challenges associated with staged combustion are related to the fact that burner performance must be nearly perfect to complete combustion within the available residence time of the furnace. Specifically, attention to airflow measurement and control by use of reliable & repeatable venturis and with pulverizer performance optimization. To maintain or improve this unit’s excellent reliability, a focus on optimizing the inputs and completing the combustion prior to the furnace exit was implemented. The goals of this project were as follows: 1. NOx Reduction from .78lb/mmBtu(full load) – 1.0#/mmBtu(low load) to less than 0.36 lb/mmBtu; 2. Flyash Carbon Content less than 10%; 3. Combustion Optimization; 4. Minimal slagging; 5. Maintain the same as baseline FEGT or reduce FEGT; 6. Maximum Load Capability; 7. Maximum Fuel Flexibility; 8. Complete the project at the lowest cost per kW possible (with the best results). All of the goals were accomplished. The technical success of this project is the results of applying a systematic and comprehensive approach beginning with raw coal feed to the pulverizers. The benefits of this total combustion optimization project is that later when additional NOx reductions are required, they can be added as a complimentary change to the present system. For example, if this unit is later equipped with SNCR or SCR, reduced rates of ammonia will be required, there will be reduced “popcorn ash” production, and less SCR catalyst wear and overall unit improved performance and reliability.
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Marrocco, Michele, Massimo D'Apice, Roberto Cipriani, and Stefano Giammartini. "CARS spectroscopy on a dry-low NOx methane/air burner." In Environmental and Industrial Sensing, edited by Stuart Farquharson. SPIE, 2001. http://dx.doi.org/10.1117/12.417381.

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10

Bao, Ainan, Dexin Wang, and William Liss. "Using Numerical Simulation Tools to Assist the Development of a High Stability Low NOx Industrial Burner." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-86300.

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To achieve ultra low NOx emission as well as high efficiency for industrial burners, premixed or partial premixed combustion technology is becoming more attractive than flue gas recirculation approaches, which tend to cause low combustion stability and low energy use efficiency. A well designed premixed combustion system can achieve lower and more uniform combustion zone temperatures thus resulting in reduced thermal NOx generation. A multi-stage premixed industrial scale gas burner with oil backup capability has been developed by the authors, with the assistance from CFD simulation. By using staged combustion, combustion heat release is better distributed into a larger volume to avoid high peak flame temperature zone to occur. By using a primary stage combustion with a fuel rich flame and a hot high emissive metallic chamber wall, the burner combustion stability is ensured. The CFD tool was used to simulate and optimize the whole burner combustion and heat transfer process, with proper fluid dynamics and reaction models for this full size burner development. With the CFD efforts, the final burner design can achieve a very uniform temperature field, with peak flame temperatures below 1650°C, therefore thermal NOx generation is minimized. The numerical results show that this new gas-fired burner can achieve high efficiency with low NOx emission. Using the CFD simulation tool, the burner global parameters, such as its peak flame temperatures, its exhaust flue gas temperatures, and its NOx concentration distributions, have been studied under different burner operation conditions, e.g., different excess air levels, different burner firing rates, and different mixture inlet temperatures. The CFD simulation tool has been proved a good assistance for the burner design, as well as the burner performance optimization.
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Reports on the topic "Low-NOx burner"

1

KRISHNA, C. R., and T. BUTCHER. LOW NOX BURNER DEVELOPMENT. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/15010732.

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2

Lee, G. K., and R. J. Philp. Low NOx/SOx burner trials: CFB Gagetown. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/304408.

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3

Ray Chamberland, Aku Raino, and David Towle. Enhanced Combustion Low NOx Pulverized Coal Burner. Office of Scientific and Technical Information (OSTI), September 2006. http://dx.doi.org/10.2172/908316.

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David Towle, Richard Donais, Todd Hellewell, Robert Lewis, and Robert Schrecengost. Enhanced Combustion Low NOx Pulverized Coal Burner. Office of Scientific and Technical Information (OSTI), June 2007. http://dx.doi.org/10.2172/936317.

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5

Lee, G. K. The Rockwell low NOx /SOx burner development. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/302630.

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Lee, G. K., and R. J. Philp. Gagetown low NOx/SOx burner project test program. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/304366.

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7

McClaine, Andrew W. Low NOx Burner Development Program - Final Report - 09/15/1996 - 09/30/2000. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/789965.

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8

Andrew Seltzer. Low NOx Burner Design and Analysis for Conceptual Design of Oxygen-Based PC Boiler. Office of Scientific and Technical Information (OSTI), May 2005. http://dx.doi.org/10.2172/861883.

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9

Author, Not Given. Evaluation of Gas Reburning & Low NOx Burners on a Wall Fired Boiler Performance and Economics Report Gas Reburning-Low NOx Burner System Cherokee Station Unit 3 Public Service Company of Colorado. Office of Scientific and Technical Information (OSTI), July 1998. http://dx.doi.org/10.2172/2744.

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10

Bailey, Ralph, Hamid Sarv, Jim Warchol, and Debi Yurchison. PARTICULATE CHARACTERIZATION AND ULTRA LOW-NOx BURNER FOR THE CONTROL OF NO{sub x} AND PM{sub 2.5} FOR COAL FIRED BOILERS. Office of Scientific and Technical Information (OSTI), September 2001. http://dx.doi.org/10.2172/789502.

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