scholarly journals Effect of Using Emulsions of High Nitrogen Containing Fuels and Water in a Gas Turbine Combustor on NOx and Other Emissions

1982 ◽  
Author(s):  
P. P. Singh ◽  
P. R. Mulik ◽  
A. Cohn
Keyword(s):  
Gas Turbine ◽  
Water Injection ◽  
High Water ◽  
Base Line ◽  
Gas Turbine Combustor ◽  
Fuel Flow ◽  
Unburned Hydrocarbons ◽  
Combustion Tests ◽  
Base Load ◽  
Test Fuel

A total of four combustion tests studying the response of various water/fuel emulsion rates on NOx emissions have been conducted on: (a) Paraho shale oil, (b) H-Coal© (372–522 K) distillate, (c) No. 2 oil doped with quinoline, (d) H-Coal© (505–616 K) distillate, utilizing a 0.14 m dia gas turbine can-type combustor at base-load conditions. Each test fuel run was proceeded with a base-line fuel run with No. 2 distillate oil. The results indicate that the effectiveness of water injection to reduce NOx decreased rapidly with an increase in the fuel-bound nitrogen (FBN) content of the test fuels. The smoke number, in general, decreased with increased water injection, while carbon monoxide and unburned hydrocarbons increased at high water/fuel flow rates.

Effect of Using Emulsions of High Nitrogen Containing Fuels and Water in a Gas Turbine Combustor on NOx and Other Emissions

1983 ◽  
Vol 105 (3) ◽  
pp. 430-437
Author(s):  
P. P. Singh ◽  
P. R. Mulik ◽  
A. Cohn
Keyword(s):  
Gas Turbine ◽  
Water Injection ◽  
High Water ◽  
Base Line ◽  
Gas Turbine Combustor ◽  
Fuel Flow ◽  
Unburned Hydrocarbons ◽  
Combustion Tests ◽  
Base Load ◽  
Test Fuel

A total of four combustion tests studying the response of various water/fuel emulsion rates on NOx emissions have been conducted on: (a) Paraho shale oil, (b) H-Coal© (372x–522 K) distillate, (c) No. 2 oil doped with quinoline, (d) H-Coal© (505–616 K) distillate, utilizing a 0.14-m dia gas turbine can-type combustor at base-load conditions. Each test fuel run was proceeded with a base-line fuel run with No. 2 distillate oil. The results indicate that the effectiveness of water injection to reduce NOx decreased rapidly with an increase in the fuel-bound nitrogen (FBN) content of the test fuels. The smoke number, in general, decreased with increased water injection, while carbon monoxide and unburned hydrocarbons increased at high water/fuel flow rates.

User Experience: Operating a 300 MW Base Load Cogeneration Plant With High Water Injection Rates to Control NOx Emissions

1989 ◽  
Author(s):  
William E. Hauhe ◽  
Gary L. Haub ◽  
Charles O. Myers ◽  
Donald C. Guthan ◽  
David O. Fitts
Keyword(s):  
Gas Turbine ◽  
User Experience ◽  
Water Injection ◽  
High Water ◽  
Operational Reliability ◽  
Oil Field ◽  
Nox Emissions ◽  
Cogeneration Plant ◽  
Base Load ◽  
Reliability And Availability

This paper describes user experience with the operation and maintenance of a gas turbine based cogeneration plant operating at base load while injecting up to 80 gpm (303 l/min) of water to control NOx emissions to 42 ppmv (at 15% O2). The plant, located in the Kern River Oil Field, near Bakersfield, California, has produced an average of 294.6 MWe and 1.903 million lbs/hr (0.863 million kg/hr) of steam since achieving commercial operation in August, 1985. To date, the plant has achieved an operational reliability and availability of 98.9% and 95.4%, respectively. The effects of water injection on combustion hardware, as well as, overall gas turbine reliability and availability and equipment enhancements will be discussed.

scholarly journals Effect of Water Injection for NOx Reduction With Synthetic Liquid Fuels Containing High Fuel-Bound Nitrogen in a Gas Turbine Combustor

1981 ◽  
Author(s):  
P. R. Mulik ◽  
P. P. Singh ◽  
A. Cohn
Keyword(s):  
Gas Turbine ◽  
Liquid Fuel ◽  
Nox Reduction ◽  
Water Injection ◽  
Liquid Fuels ◽  
Gas Turbine Combustor ◽  
Synthetic Liquid Fuel ◽  
Effect Of Water ◽  
Combustion Tests ◽  
No Emissions

A total of five combustion tests utilizing water injection for control of NO, emissions have been conducted on three types of coal-derived liquid (CDL) fuels from the H-Coal and SRC II processes along with a shale-derived liquid (SDL) fuel supplied by the Radian Corporation. Actual testing was performed in a 0.14 m diameter gas-turbine-type combustor. For comparative purposes, each run with a synthetic liquid fuel was preceded by a baseline run utilizing No. 2 distillate oil. The effectiveness of water injection was found to decrease as the fuel-bound nitrogen (FBN) content of the synthetic liquids increased.

Combustion Effects of Coal Liquid and Other Synthetic Fuels in Gas Turbine Combustors: Part I — Fuels Used and Subscale Combustion Results

1980 ◽  
Author(s):  
P. P. Singh ◽  
A. Cohn ◽  
P. W. Pillsbury ◽  
G. W. Bauserman ◽  
P. R. Mulik ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Companion Paper ◽  
Liquid Fuels ◽  
Temperature Profiles ◽  
Test Results ◽  
Synthetic Fuels ◽  
Unburned Hydrocarbons ◽  
Combustion Tests ◽  
Percent Nitrogen

Combustion tests on over twelve types of coal derived liquid fuels from the EDS, H-coal, SRC-I and SRC-II processes and three shale oil fuels have been conducted in gas turbine type combustors. Emission measurements were made of Nox, smoke, CO, and unburned hydrocarbons. Combustor wall temperature profiles were measured. The results are correlated with the fuel properties-percent nitrogen, hydrogen and aromaticity. This part of the paper discusses the fuels used in subscale combustion tests along with the test results. A companion paper (Part II) describes the results of full-scale combustor tests and a long term corrosion/deposition test.

scholarly journals Test Result of Low NOx Catalytic Combustor for Gas Turbine

1993 ◽  
Author(s):  
Y. Ozawa ◽  
J. Hirano ◽  
M. Sato ◽  
M. Saiga ◽  
S. Watanabe
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Combustion Method ◽  
Combustion Efficiency ◽  
Gas Temperature ◽  
Gas Turbine Combustor ◽  
Combustion Gas ◽  
Low Nox Combustion ◽  
Catalytic Combustor ◽  
Combustion Tests

Catalytic combustion is an ultra low NOx combustion method, so it is expected that this method will be applied to gas turbine combustor. However, it is difficult to develop catalytic combustor because catalytic reliability at high temperature is still insufficient. To overcome this difficulty, we designed a catalytic combustor in which premixed combustion was combined. By this device, it is possible to obtain combustion gas at a combustion temperature of 1300°C while keeping the catalytic temperature below 1000°C. After performing preliminary tests using LPG, we designed two types of combustors for natural gas with a capacity equivalent to 1 combustor used in a 20MW–class multi–can type gas turbine. Combustion tests were conducted at atmospheric pressure using natural gas. As a result, it was confirmed that a combustor in which catalytic combustor segments were arranged alternately with premixing nozzles could achieve low NOx and high combustion efficiency in the range from 1000°C to 1300°C of the combustor exit gas temperature.

Design and Testing of an Ultra-Low NOx Gas Turbine Combustor

1986 ◽  
Author(s):  
Kenneth O. Smith ◽  
Leonard C. Angello ◽  
F. Richard Kurzynske
Keyword(s):  
Natural Gas ◽  
Gas Turbine ◽  
Catalytic Reduction ◽  
Water Injection ◽  
Nox Emissions ◽  
Combustion System ◽  
Gas Turbine Combustor ◽  
Program Goal ◽  
Primary Zone ◽  
Design And Testing

The design and initial rig testing of an ultra-low NOx gas turbine combustor primary zone are described. A lean premixed, swirl-stabilized combustor was evaluated over a range of pressures up to 10.7 × 105 Pa (10.6 atm) using natural gas. The program goal of reducing NOx emissions to 10 ppm (at 15% O2) with coincident low CO emissions was achieved at all combustor pressure levels. Appropriate combustor loading for ultra-low NOx operation was determined through emissions sampling within the primary zone. The work described represents a first step in developing an advanced gas turbine combustion system that can yield ultra-low NOx levels without the need for water injection and selective catalytic reduction.

Numerical Investigation of Enhanced Dilution Zone Mixing in a Reverse Flow Gas Turbine Combustor

1993 ◽  
Author(s):  
D. Scott Crocker ◽  
Clifford E. Smith
Keyword(s):  
Gas Turbine ◽  
Reverse Flow ◽  
Turbulent Shear ◽  
Gas Turbine Combustor ◽  
Optimum Configuration ◽  
Average Temperature ◽  
Fuel Flow ◽  
Swirl Velocity ◽  
Hole Configuration ◽  
Radial Average

An advanced method for dilution zone mixing in a reverse flow gas turbine combustor was numerically investigated. For long mixing lengths associated with reverse flow combustors (X/H > 2.0), pattern factor was found to be mainly driven by nozzle-to-nozzle fuel flow and/or circumferential airflow variations; conventional radially injected dilution jets could not effectively mix out circumferential non-uniformities. To enhance circumferential mixing, dilution jets were angled to produce a high circumferential (swirl) velocity component. The jets on the outer liner were angled in one direction while the jets on the inner liner were angled in the opposite direction, thus enhancing turbulent shear at the expense of jet penetration. 3-D CFD calculations were performed on a three-nozzle (90°) sector, with different fuel flow from each nozzle (90%, 100% and 110% of design fuel flow). The computations showed that the optimum configuration of angled jets reduced the pattern factor by 60% compared to an existing conventional dilution hole configuration. The radial average temperature profile was adequately controlled by the inner-to-outer liner dilution flow split.

Gas Turbine Combustor Analysis

1975 ◽  
Vol 97 (4) ◽  
pp. 610-618
Author(s):  
D. A. Sullivan
Keyword(s):  
Gas Turbine ◽  
Pressure Ratio ◽  
Water Injection ◽  
Direct Calculation ◽  
Steam Injection ◽  
Ambient Conditions ◽  
Gas Turbine Combustor ◽  
Heating Value ◽  
Compressor Pressure Ratio ◽  
Machine Speed

The pressure, temperature, and fuel-to-air ratio of a gas turbine combustor vary with ambient conditions, machine speed, and load. Only a few of these parameters are independent. An analysis has been developed which predicts the combustor operating parameters. The analysis includes low heating value fuel combustion, water injection, and three modes of steam injection. The analysis is used to predict the combustor operation for a simple-cycle gas turbine, but it is not restricted to this case. In addition, a simplified analysis is deduced and shown to be surprisingly accurate. Special solutions are presented which permit direct calculation of the firing temperatures, fuel heating value, or air extraction required to achieve a specified compressor pressure ratio. Finally, the analysis is compared with experimental results.

scholarly journals Combustion of Methanol and Liquefied Butane in a Gas Turbine Combustor

1981 ◽  
Author(s):  
S. Kajita ◽  
J. Kitajima ◽  
T. Kimura
Keyword(s):  
Liquid Phase ◽  
Natural Gas ◽  
Gas Turbine ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
Fuel Injector ◽  
Gas Turbine Combustor ◽  
Technical Problems ◽  
Combustion Tests ◽  
Type Fuel

Combustion tests with a gas turbine combustor were carried out to clarify the technical problems caused when liquefied butane was supplied and burned in the liquid phase in addition to evaluating methanol and liquefied butane as an alternative fuel. For methanol, a conventional dual-orifice type fuel injector, and for liquefied butane, the same dual-orifice type injector and two types of multi-hole injectors were tested. The results of combustion tests with both fuels were compared with those of conventional gas turbine fuels — kerosene and natural gas with respect to combustion performances and exhaust emissions. It was found that both fuels had some advantages over conventional fuels.

scholarly journals Combustion Effects of Coal Liquid and Other Synthetic Fuels in Gas Turbine Combustors: Part II — Full Scale Combustor and Corrosion Tests

1980 ◽  
Author(s):  
G. W. Bauserman ◽  
C. J. Spengler ◽  
A. Cohn
Keyword(s):  
Gas Turbine ◽  
Companion Paper ◽  
Full Scale ◽  
Liquid Fuels ◽  
Test Results ◽  
Synthetic Fuels ◽  
Unburned Hydrocarbons ◽  
Combustion Tests ◽  
Percent Nitrogen

Combustion tests on over twelve types of coal derived liquid fuels from the EDS, H-coal, SRC-I and SRC-II processes and three shale oil fuels have been conducted in gas turbine type combustors. Emission measurements wre made of NOx, smoke, CO, and unburned hydrocarbons. Combustor wall temperature profiles were measured. The results are correlated with the fuel properties — percent nitrogen, hydrogen and aromaticity. This paper (Part II) describes the results of full scale combustor testing and of a long-term corrosion/deposition test. A companion paper by Cohn, et al. Part I discusses the fuels used in the program and the subscale combustor test results.

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