scholarly journals Experience Gained in Operation of the GTS Finnjet Gas Turbines and Improvements in Ship’s Fuel Economy

1982 ◽  
Author(s):  
O. Pylkkänen ◽  
J. Saunamäki
Keyword(s):  
Fuel Economy ◽  
Gas Turbines ◽  
Paper Briefly ◽  
Maintenance And Repair ◽  
Electric Machinery ◽  
Fuel Oils ◽  
Blended Fuel ◽  
Distillate Fuel

This paper briefly describes the use of gas turbines of the GTS Finnjet, matters concerned with maintenance and repair as a result of four years’ experience (45,000 engine hours) in service, using light distillate fuel. The research and modifications required for changeover to blended residual fuel oils in gas turbines are then reviewed, as well as the first experiences (4,000 engine hours) in using the blended fuel oils during the summer of 1981. Finally we describe how the fuel economy was further improved by installing a diesel-electric machinery on the car deck to be used for manoeuvring and low season journeys.

scholarly journals The Combustion of Heavy Distillate Fuels in Heavy Duty Gas Turbines

1971 ◽  
Author(s):  
R. B. Schiefer
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Fuel Cost ◽  
Heavy Duty ◽  
Heavy Distillate ◽  
Combustion Performance ◽  
Fuel Oils ◽  
Gas Turbine Combustion ◽  
Distillate Fuel

Heavy distillate fuel oils are being offered for use in gas turbines at a significant reduction in fuel cost. This paper will summarize the characteristics of some of these fuels, their effect on gas turbine combustion performance, and the problems associated with their use.

Future Vehicular Recuperator Technology Projections

1994 ◽  
Author(s):  
Robert A. Wilson ◽  
Daniel B. Kupratis ◽  
Satyanarayana Kodali
Keyword(s):  
Gas Turbine ◽  
Fuel Economy ◽  
Department Of Defense ◽  
Gas Turbines ◽  
High Performance ◽  
Development Program ◽  
Turn Of The Century ◽  
Turbine Engine ◽  
Technology Roadmap ◽  
Vehicle Propulsion

The Department of Defense and NASA have funded a major gas turbine development program, Integrated High Performance Turbine Engine Technology (IHPTET), to double the power density and fuel economy of gas turbines by the turn of the century. Seven major US gas turbine developers participated in this program. While the focus of IHPTET activity has been aircraft propulsion, the same underlying technology can be applied to water craft and terrestrial vehicle propulsion applications, such as the future main battle tank. For these applications, the gas turbines must be equipped with recuperators. Currently, there is no technology roadmap or set of goals to guide industry and government in the development of a next generation recuperator for such applications.

An Automated Method for the Continuous Determination of Total Sodium in Fuel Oil

1978 ◽  
Author(s):  
L. P. Giering
Keyword(s):  
Gas Turbines ◽  
Fuel Oil ◽  
Reliable Measurement ◽  
Continuous Analysis ◽  
Automated Method ◽  
Fuel Oils ◽  
On Line ◽  
Total Sodium ◽  
Continuous Determination

Fuel oils are frequently contaminated with sodium salts. Users of gas turbines are concerned with the level of sodium in fuel because of the deleterious effects to the turbine. Until recently, on-line continuous methods of analysis did not reliably measure the total sodium in a given fuel. A method is described for the continuous analysis of total sodium present in fuel oils regardless of its chemical form. A small amount of surfactant, “Liquid G” is added to the fuel, and the total sodium in the resulltant solution is determined by flame photometry. The method described provides for the continuous and reliable measurement of sodium in fuel.

Experiences With Gas Turbines Burning Non-Refined Fuel Oils and Related Theoretical Investigations

1974 ◽  
Author(s):  
A. J. Frieder ◽  
P. C. Felix ◽  
H. J. Hess
Keyword(s):  
Crude Oil ◽  
Firing Temperature ◽  
Gas Turbines ◽  
Heavy Distillate ◽  
Theoretical Investigations ◽  
Fuel Oils

This paper presents experience on large, low firing temperature European gas turbines operating on crude and residual fuels. The most economic fuel can be a distillate, a heavy distillate, a crude oil, and, in some applications, even a residual fuel.

Highly efficient Co(II) porphyrin catalysts for the extractive oxidative desulfurization of dibenzothiophene in fuel oils under mild conditions

2020 ◽  
Vol 25 (01) ◽  
pp. 24-30
Author(s):  
Deependra Tripathi ◽  
Inderpal Yadav ◽  
Himani Negi ◽  
Raj K. Singh ◽  
Vimal C. Srivastava ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Volume Ratio ◽  
Fuel Oil ◽  
Molar Ratio ◽  
Mild Conditions ◽  
Reaction Optimization ◽  
Middle Distillate Fuel ◽  
Fuel Oils ◽  
Optimized Conditions ◽  
Distillate Fuel

Co(II) porphyrins have been utilized as efficient and selective catalysts for the extractive oxidative desulfurization reaction on the refractory dibenzothiophene (DBT) in [Formula: see text]-dodecane (model middle distillate fuel oil). The acetonitrile was taken as extracting polar solvent and H2O2 was used as oxidant. The reaction optimization was done with respect to DBT:catalyst molar ratio; DBT:H2O2 molar ratio; extracting solvent: CH3CN/[Formula: see text]-dodecane volume ratio; reaction temperature and time. Under the optimized conditions, a maximum of [Formula: see text]98% DBT removal was achieved by using the meso-tetrakis(4[Formula: see text] methoxyphenyl)porphyrinatocobalt(II) as catalyst under mild conditions at 50[Formula: see text]C.

scholarly journals Relationship Between Erosion and Characteristics of Deposits in Gas Turbines Burning Heavy High Sulfur Fuel Oil

1994 ◽  
Author(s):  
Adriana Wong-Moreno ◽  
Alicia Sánchez-Villalvazo
Keyword(s):  
Gas Turbines ◽  
Fuel Oil ◽  
Clear Correlation ◽  
Inlet Temperature ◽  
Operation Conditions ◽  
Residual Fuel Oil ◽  
Fuel Oils ◽  
Severe Erosion ◽  
Heavy Fuel Oils ◽  
Physical And Chemical

Heavy, brittle and very hard deposits built on the first row vanes have caused severe erosion of all the first stage blades of a gas turbine during operation with washed and treated heavy residual fuel oil. The high sulphur (3.5–4.0 wt.%) fuel oil consumed by the turbine is also high in vanadium (280–290 ppm) and asphaltene content. In the present work the results of an investigation on the physical and chemical characteristics of erosive ash deposits as a function of operation conditions and fuel oil characteristics are presented. The structure and chemistry of deposits were studied by chemical analysis, x-ray diffraction, microanalysis and scanning electron microscopy. It was confirmed that deposit friability is enhanced by its MgSO4 content and that its hardness depends on the amount of MgO present. It was also found a clear correlation between the gas inlet temperature and the size of the ash particles deposited, and on the degree of compactness and hardness of the deposit. The role of the unburned particles, unavoidable in the combustion of heavy fuel oils, is discussed in relation to their influence on the effectiveness of the magnesium inhibitor.

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