TED-AJ03-305 LOW NO_x PRE-MIXED COMBUSTION AIMING AT MICRO GAS TURBINE COMBUSTOR
スポンサーリンク
概要
- 論文の詳細を見る
Recently, distributed energy system has been attracted much interests because of its high gross energy efficiency and the contribution to adjust local difference of power use. In the components of distributed energy system, micro gas turbine is thought as the central element. The micro gas turbine has been prevailing for the practical use but the detailed structure has not been reported so far. So it is needed to investigate the components of micro gas turbine. The development of the burner is one of the important elements of a micro gas turbine. The requested conditions for the gas turbine combustor are low NOx emission, flame stability and complete combustion. As for low NOx emission, lean premixed combustion is one of the useful methods. The feature of lean premixed combustion is to suppress burnt gas temperature to minimize the reactions by Zeldovich mechanism. In this study, combustors whose concepts consist of the flame stabilization by swirl flow and low NOx emission by the lean premixed combustion are designed and the flame characteristics are investigated by experiment. Also the dominant formation mechanism of NOx for the lean premixed flame and the dependency of NOx generation on pressure, inlet temperature and air ratio is investigated by numerical computation. At first, the combustor whose concept is shown in Fig. 1 is designed and tested. The points of the combustor are (1) flame stabilization by swirl flow and (2) lean premixed combustion by mixing fuel and air at the inlet of combustor to ensure low NOx emission and prevention of flashback. In this combustor, flames are streaky and formed near the exit of fuel injection holes. NOx emission of this combustor could be reduced only to 20ppm. It seems that complete premixing is not achieved in this combustor. So, the premixed combustors are designed to obtain lower limit of NOx emission by lean premixed combustion. From the experiment of the premixed combustor, it is obtained that NOx emission can be suppressed typically 3ppm and CO emission is simultaneously kept small. On the other hand, the computation of the premixed flame is executed to investigate dominant NOx formation mechanism and the effects of air ratio, pressure and inlet temperature on the NOx emission at lean premixed flames. From the computations, it is cleared that prompt NOx formation mechanism is the dominant mechanism even at lean premixed combustion when flame temperature is relatively low. Pressure effect on NOx emission is small when pressure is lower than 5atm. As for the effects of inlet temperature and air ratio, burnt gas temperature is more effective than inlet temperature and air ratio and NOx emission can be suppressed by keeping burnt gas temperature under 1800K.[figure]
- 一般社団法人日本機械学会の論文
著者
-
Kinoshita Shinichi
Department Of Fermentation Technology Faculty Of Engineering Osaka University
-
Takagi Toshimi
Department Of Mechanophysics Engineering Osaka University
-
Okamoto Tatsuyuki
Department Of Biopharmaceutics Graduate School Of Pharmaceutical Sciences Osaka University:departmen
-
Okamoto Tatsuyuki
Department Of Mechanophysics Engineering Osaka University
-
Takagi Toshimi
Department Of Mechanical Engineering Alty Of Engineering. Osaka University
-
SHIOTANI HITOSHI
Department of Mechanophysics Engineering Osaka University
-
TERAOKA HIRONOBU
Department of Mechanophysics Engineering Osaka University
-
Kinoshita Shinichi
Department Of Chemical Process Engineering Faculty Of Engineering Hokkaido University
-
Kinoshita Shinichi
Department Of Mechanophysics Engineering Osaka University
関連論文
- Creation of Novel Cell-Penetrating Peptides for Intracellular Drug Delivery Using Systematic Phage Display Technology Originated from Tat Transduction Domain(Biochemistry)
- Selective Enhancer of Tumor Vascular Permeability for Optimization of Cancer Chemotherapy (Pharmacognosy)
- Anti-angiogenic Effects of Dimethyl Sulfoxide on Endothelial Cells(Pharmacognosy)
- Role of Hepatic STAT3 in the Regulation of Lipid Metabolism
- Isolation of a Lignin-Decolorizing Bacterium
- Purification and Properties of Aminopeptidase from Flavobacterium sp.
- Purification and Properties of Mutanase from Bacillus circulans
- Kinetic Parameters of β-Fructofuranosidase from Scopulariopsis brevicaulis
- Production of Fructosylxylosides by Scopulariopsis brevicaulis sp.
- Production of 1-Kestose by Scopulariopsis brevicaulis
- Numerical Simulation of Combustion and Nongray Radiative Heat Transfer in a Furnace and Its Comparison with Experiments
- Numerical Analysis of Diffusion Combustion of Coal-Gasified Fuel : Effect of Pressure on NO_x Formation
- 414 Hydrolysis of Cellulose Using Membrane Reactor System
- Continuous Production of 12-Ketochenodeoxycholic Acid in a Column Reactor Containing Immobilized Living Cells of Brevibacterium fuscum
- Production of 12-Ketochenodeoxycholic Acid by Two-stage Continuous Fermentation with pH Control at Different Levels
- β-Mannanase and Xylanase of Bacillus subtilis 5H Active for Bleaching of Crude Pulp
- 2,3-Butanediol Production by Immobilized Enterobacter aerogenes IAM1133 with _K-Carrageenan
- Enzymatic Degradation of Polystyrene by Hydroquinone Peroxidase of Azotobacter beijerinckii HM121
- Degradation of Synthetic Water-Soluble Polymers by Hydroquinone Peroxidase
- Non-Heme Hydroquinone Peroxidase from Azotobacter beijerinckii HM121
- Analysis of a Catalytic Acidic Pair in the Active Center of Cellulase from Aspergillus aculeatus
- 微生物処理した屎尿の糸状菌による脱色
- Nonintrusive Gas Pressure Measurement by Laser Induced Fluorescence from NO Molecules
- A204 NUMERICAL ANALYSIS ON THE EFFECTS OF INTERACTION BETWEEN DIFFUSION FLAME AND VORTEX(Laminar flame-1)
- A203 Measurements of Two-dimensional Temperature, OH Concentration and Velocity in Diffusion Flames Interacted with Large Scale Vortices(Laminar flame-1)
- Prediction of Heat Transfer Deterioration in Turbulent Swirling Pipe Flow
- Numerical Computation and Its Comparison with Experiments on Vortex Formation and the Mixing Process in a Transient Jet
- Measurements of O_2 Concentration and Temperature in Diffusion Flame by Excimer-Laser-Induced Fluorescence and Rayleigh Scattering
- Measurements of OH Concentration and Temperature in Diffusion Flame by Excimer Laser-Induced Fluorescence and Rayleigh Scattering
- TED-AJ03-307 EXTINCTION AND INTERRUPTION OF DIFFUSION FLAME INTERACTED WITH A LARGE SCALE VORTEX MEASURED BY RAYLEIGH SCATTERING AND LIF
- Simultaneous Multipoint Temperature Measurements by Laser Rayleigh Scattering in Turbulent Diffusion Flames
- Measurements of Velocity and Concentration in Transiet Jets by LDV and Rayleigh Scattering
- Process Analysis and Evaluation of Exergy Loss in Solid Oxide Fuel Cell
- TED-AJ03-322 ANALYSIS OF INTERNAL PROCESSES AND EXERGY LOSSES IN A SOLID OXIDE FUEL CELL (SOFC)
- Structural Studies of Locally Strained Diffusion Flames : Analysis on Characteristics of Positively and Negatively Stretched Flames
- A208 TRANSIENT STRUCTURE AND CHARACTERISTICS OF NEGATIVELY STRAINED DIFFUSION FLAME(Laminar flame-2)
- B315 Investigation of Recirculated Gas Entrainment and Mixing Aiming at NOx Reduction in Oxygen Enriched Air Combustion(Combustor)
- Isolation of Polyacrylamide-Degrading Bacteria
- TED-AJ03-379 NUMERICAL SIMULATION OF THE DYNAMIC BEHAVIOR OF JET DIFFUSION FLAMES INTERACTED WITH A LARGE SCALE VORTEX
- NO_x Formation in Hydrogen Diffusion Flames
- TED-AJ03-305 LOW NO_x PRE-MIXED COMBUSTION AIMING AT MICRO GAS TURBINE COMBUSTOR
- Purification and Properties of Three Kinds of α-Hydroxysteroid Dehydrogenases from Brevibacterium fuscum DC33
- Purification of α-Hydroxysteroid Dehydrogenase from Lactobacillus xylosus
- The Industrial Crystallization Method for Fructosylxyloside Produced by Scopulariopsis brevicaulis
- Purification and Properties of Endoxylanase Produced by Bacillus pumilus