Development of a Dual-Fuel Gas Turbine Engine of Liquid and Low-Calorific Gas

2005 ◽  
Author(s):  
Masamichi Koyama ◽  
Hiroshi Fujiwara
Keyword(s):  
Gas Turbine ◽  
Sewage Treatment ◽  
Energy Resource ◽  
Biomass Energy ◽  
Dual Fuel ◽  
Fuel Gas ◽  
Turbine Engine ◽  
Reference Velocity ◽  
Continuous Use ◽  
Wasted Energy

We developed a dual-fuel single can combustor for the Niigata Gas Turbine (NGT2BC), which was developed as a continuous-duty gas turbine capable of burning both kerosene and digester gas. The output of the NGT2BC is 920 kW for continuous use with digester gas and 1375 kW for emergency use with liquid fuel. Digester gas, obtained from sludge processing at sewage treatment plants, is a biomass energy resource whose use reduces CO2 emissions and take advantage of an otherwise wasted energy source. Design features for good combustion with digester gas include optimized the good matching of gas injection and swirl air and reduced reference velocity. The optimal combination of these parameters was determined through CFD analysis and atmospheric rig testing.

scholarly journals Methodology and Continuous Time Mathematical Model to Select Optimum Power of Gas Turbine Set for Dual-Fuel Gas-Steam Combined Heat and Power Plant in Parallel System

Energies ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 1784 ◽  
Author(s):  
Ryszard Bartnik ◽  
Waldemar Skomudek ◽  
Zbigniew Buryn ◽  
Anna Hnydiuk-Stefan ◽  
Aleksandra Otawa
Keyword(s):  
Mathematical Model ◽  
Power Plant ◽  
Gas Turbine ◽  
Continuous Time ◽  
Combined Heat And Power ◽  
Parallel System ◽  
Dual Fuel ◽  
Fuel Gas

scholarly journals Emissions and Performance of Catalysts for Gas Turbine Catalytic Combustors

1977 ◽  
Author(s):  
D. N. Anderson
Keyword(s):  
Gas Turbine ◽  
Combustion Efficiency ◽  
Temperature Pattern ◽  
Turbine Engine ◽  
Reference Velocity ◽  
Test Conditions ◽  
Exit Temperature ◽  
And Performance ◽  
Catalytic Combustor ◽  
Emissions And Performance

Three noble-metal monolithic catalysts were tested in a 12-cm-dia combustion test rig to obtain emissions and performance data at conditions simulating the operation of a catalytic combustor for an automotive gas turbine engine. Tests with one of the catalysts at 800 K inlet mixture temperature, 3 × 105 Pa (3 atm) pressure, and a reference velocity (catalyst bed inlet velocity) of 10 m/sec demonstrated greater than 99 percent combustion efficiency for reaction temperatures higher than 1300 K. With a reference velocity of 25 m/sec the reaction temperature required to achieve the same combustion efficiency increased to 1380 K. The exit temperature pattern factors for all three catalysts were below 0.1 when adiabatic reaction temperatures were higher than 1400 K. The highest pressure drop was 4.5 percent at 25 m/sec reference velocity. Nitrogen oxides emissions were less than 0.1 g NO2/kg fuel for all test conditions.

scholarly journals Development of the system of energy and resource saving during the operation of the gas pumping unit

2021 ◽  
Vol 5 (1(61)) ◽  
pp. 18-24
Author(s):  
Mykhailo Kologrivov ◽  
Vitalii Buzovskyi
Keyword(s):  
Gas Turbine ◽  
Gas Turbine Engine ◽  
Compressor Station ◽  
Fuel Gas ◽  
Turbine Engine ◽  
Process Gas ◽  
Gas System ◽  
Complex Utilization ◽  
Gas Pumping ◽  
Gas Pumping Unit

The object of research is the fuel gas system of a gas turbine engine. The study of the use of secondary energy resources of the gas-pumping unit at the compressor station of the main pipeline has been carried out. The work of a gas turbine engine, including the work of the fuel gas system, is considered. The main drawback of the fuel gas system is revealed – ineffective use of excess gas pressure. An informational analysis of the options that eliminate the identified drawback is carried out. It is shown that in order to eliminate the disadvantage, it is advisable to use a turbo-expander at the compressor station to utilize the excess pressure of the fuel gas. It is also shown that the operation of a fuel gas turboexpander to drive an additional air compressor as part of a gas turbine engine is impractical. An expander-generator set with the generation of additional electricity at the compressor station is recommended for use. Modeling the operation of the utilization system made it possible to recommend constructive proposals for its improvement. A schematic diagram of a system for the complex utilization of excess pressure of fuel gas and heat of combustion products from the operation of a gas turbine engine is proposed. The system of complex utilization includes parts-generator unit, heat exchanger for cooling process gas and heat exchanger for firing gas. Regenerative heating of fuel gas up to 250 °С reduces energy consumption for heating it up to the ignition temperature. A model of a robot installation of the type GPU 16/56-1.44 (Ukraine) is carried out. It is determined that when a component engine of the J-59 (Ukraine) type with a shaft power of 16 MW operates, it is possible to additionally receive 102 kW of electricity and save 64 m3/h of fuel gas. It is revealed that the subcooling of the process gas does not play a significant role in reducing energy consumption during its transportation. It is recommended to use the process gas to heat the cold fuel gas stream downstream of the turboexpander to positive temperatures. The integrated utilization system is not a simple connection of an expander-generator set and two heat exchangers along the flow of the fuel gas. As a result of its operation, a significant reduction in the consumption of fuel gas and electricity is achieved. The disadvantages that hinder the implementation of a comprehensive disposal system are identified. This is the use of equipment for generating electricity at a compressor station. It is uncharacteristic for the operation of the station and requires additional qualifications in service. It is also required that the characteristics of industrial expander-generator sets correspond to the fuel gas consumption of a gas turbine engine.

scholarly journals Research on the influence of fuel gas on energy characteristics of a gas turbine

2019 ◽  
Vol 124 ◽  
pp. 05063 ◽  
Author(s):  
G.E. Marin ◽  
B.M. Osipov ◽  
D.I. Mendeleev
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Thermodynamic Cycle ◽  
Working Fluid ◽  
Fluid Composition ◽  
Fuel Gas ◽  
Turbine Engine ◽  
Equipment Operation ◽  
Turbine Efficiency ◽  
The Impact

The purpose of this paper is to study and analyze the gas turbine engine and the thermodynamic cycle of a gas turbine. The article describes the processes of influence of the working fluid composition on the parameters of the main energy gas turbines, depending on the composition of the fuel gas. The calculations of the thermal scheme of a gas turbine, which were made using mathematical modeling, are given. As a result of research on the operation of the GE PG1111 6FA gas turbine installation with various gas compositions, it was established that when the gas turbine is operating on different fuel gases, the engine efficiency changes. The gas turbine efficiency indicators were determined for various operating parameters and fuel composition. The impact of fuel components on the equipment operation is revealed.

Development and Design of Alstom’s Staged Fuel Gas Injection EV Burner for NOx Reduction

2007 ◽  
Author(s):  
Martin Zajadatz ◽  
Rudolf Lachner ◽  
Stefano Bernero ◽  
Christian Motz ◽  
Peter Flohr
Keyword(s):  
Gas Turbine ◽  
Distribution System ◽  
Nox Reduction ◽  
Gas Injection ◽  
Hole Injection ◽  
Test Facility ◽  
Fuel Gas ◽  
Turbine Engine ◽  
Operating Range ◽  
Ev Burner

Alstom’s combustion development on the EV burner concept has taken another step forward with the introduction of a staged premix system, which allows even lower NOx values also at lower part load values compared to the pilot/premix EV burner. The development target was achieved by introducing one fuel stage over the conventional EV fuel lance, while other fuel stage is realized with a gas hole injection pattern over the EV air slots, similar to the conventional EV burner system. Due to this no major design modifications for the EV burner system were required, and the new system is fully retrofittable to the existing GT26 gas turbine engines including the existing fuel distribution system. The final design is a result of a step-by-step development. In a first step, variants defined in a feasibility study by CFD calculations indicated that a staged fuel gas injection over the fuel lance could substitute a part of the conventional premix gas injection. The water tunnel tests results performed with the LIF measurement technique demonstrated the improved mixing properties of the staged EV burner in the burner flow field. With a single burner test facility under atmospheric pressure conditions the broad operating range of the staged EV burner system could be confirmed. The single burner tests allowed investigation of the low NOx operating range for the burner system also with respect to flame generated instabilities. Finally the burner system was validated with gas turbine engine tests at the Alstom GT Test Power Plant in Birr, Switzerland, which demonstrated the excellent combustion performance of the staged EV burner system derived by the development procedure.

Sign in / Sign up

Export Citation Format

Share Document