scholarly journals Combustor Liner Temperature in the Gas Turbine Using Heavy Fuels

1982 ◽  
Author(s):  
Y. S. H. Najjar
Keyword(s):  
Gas Turbine ◽  
Temperature Measurements ◽  
Fuel Oil ◽  
Aviation Fuel ◽  
Gas Oil ◽  
Residual Fuel Oil ◽  
Temperature Parameter ◽  
Heavy Fuels ◽  
Combustor Liner

Broadening of aviation fuel specifications has been simulated with blends of gas oil and residual fuel oil. Radiation, smoke and temperature measurements in a developed experimental combustor at various air pressures, inlet temperatures and air-fuel ratios permit derivation of a non-dimensional temperature parameter showing good correlation with theory.

Radiation and Smoke From the Gas Turbine Combustor Using Heavy Fuels

1983 ◽  
Vol 105 (1) ◽  
pp. 82-88 ◽  
Author(s):  
Y. S. H. Najjar ◽  
E. M. Goodger
Keyword(s):  
Gas Turbine ◽  
Hydrogen Content ◽  
Temperature Measurements ◽  
Fuel Oil ◽  
Aviation Fuel ◽  
Soot Concentration ◽  
Gas Oil ◽  
Gas Turbine Combustor ◽  
Residual Fuel Oil ◽  
Rate Of Increase

Broadening of aviation fuel specifications has been simulated using blends of gas oil and residual fuel oil. Radiation, smoke, and temperature measurements in an experimental combustor at various air pressure, inlet temperture, and air/fuel ratios showed a diminishing rate of increase of radiation with soot concentration and reduced sensitivity of smoke to fuel hydrogen content at higher combustor pressures.

Assessing fuel spill risks in polar waters: Temporal dynamics and behaviour of hydrocarbons from Antarctic diesel, marine gas oil and residual fuel oil

2016 ◽  
Vol 110 (1) ◽  
pp. 343-353 ◽  
Author(s):  
Kathryn E. Brown ◽  
Catherine K. King ◽  
Konstantinos Kotzakoulakis ◽  
Simon C. George ◽  
Peter L. Harrison
Keyword(s):  
Temporal Dynamics ◽  
Fuel Oil ◽  
Gas Oil ◽  
Residual Fuel Oil

scholarly journals Influences of Blending Fraction in Residual Fuel Oil on Its Ignition Quality - Effects of Low-Boiling Fraction; Light Gas Oil and Light Cycle Oil

2013 ◽  
Vol 48 (6) ◽  
pp. 832-838
Author(s):  
Chiori Takahashi ◽  
Shoko Imai ◽  
Yoshitaka Yamaguchi ◽  
Yuta Mitsui ◽  
Toshiaki Hayashi
Keyword(s):  
Fuel Oil ◽  
Light Cycle ◽  
Gas Oil ◽  
Light Cycle Oil ◽  
Residual Fuel Oil ◽  
Light Gas Oil ◽  
Ignition Quality ◽  
Cycle Oil

scholarly journals Plain-Jet Airblast Atomization of Alternative Liquid Petroleum Fuels Under High Ambient Air Pressure Conditions

1982 ◽  
Author(s):  
A. K. Jasuja
Keyword(s):  
Ambient Air ◽  
High Viscosity ◽  
Fuel Oil ◽  
Similar Data ◽  
Gas Oil ◽  
Turbine Engine ◽  
Residual Fuel Oil ◽  
Wide Range ◽  
Petroleum Fuels ◽  
Light Scattering Technique

An investigation has been conducted of the effects that air and fuel properties have upon the spray mean dropsize characteristics of a plain-jet airblast atomizer of the type employed in the gas turbine engine. The fuels tested included kerosine, gas oil and a high-viscosity blend of gas oil in residual fuel oil. The tests covered a wide range of ambient air pressures. Well established laser light-scattering technique was employed for dropsize measurements. The experimental data collected in the present investigation are presented in this paper and comparisons are made against similar data relating to the pre-filming type of airblast atomizer, collected in an earlier study (2).

Effects of Fuel-Nozzle Configurations on Particulate-Matter Emissions From a Model Gas Turbine Combustor

2008 ◽  
Author(s):  
Tomohiro Asai ◽  
Hiromi Koizumi ◽  
Shohei Yoshida ◽  
Hiroshi Inoue
Keyword(s):  
Particulate Matter ◽  
Gas Turbine ◽  
Experimental Results ◽  
Fuel Oil ◽  
Gas Oil ◽  
High Concentration ◽  
Gas Turbine Combustor ◽  
Particulate Matter Emissions ◽  
Fuel Nozzle ◽  
Model Gas Turbine Combustor

The present paper describes particulate-matter (PM) emissions from a model gas turbine combustor at atmospheric pressure, focusing on the effects fuel-nozzle configurations have on PM emissions. In this experiment, three types of fuel nozzles were employed: standard, annular, and multi-type. The annular and multi-type were designed as low-PM-emission fuel nozzles, based on our preliminary experimental results using the standard nozzle. Gas oil and fuel oil containing 0.2 wt% of carbon residue were used as the test fuels. The PM concentrations and particle-size distributions were measured with an electrical low-pressure impactor. The experimental results revealed that the PM concentrations for the annular and multi-type were dramatically reduced compared with that for the standard nozzle, demonstrating their PM-reducing effect. We found that the high-concentration regions seemed to be formed by soot aggregation, from the spatial-profile measurements of PM emissions from gas oil combustion. The high-concentration regions for the low-PM-emission fuel nozzles were located further upstream and they were on a smaller scale than that for the standard nozzle. This suggests that their PM-reducing effect may be due to their upstream location and the smaller-scale of their high-concentration regions.

Reasons for low heavy vacuum gas oil yield in vacuum distillation of residual fuel oil

2009 ◽  
Vol 45 (3) ◽  
pp. 164-169
Author(s):  
V. Georgiev ◽  
D. Stratiev ◽  
K. Kirilov ◽  
K. Petkov ◽  
D. Minkov
Keyword(s):  
Vacuum Distillation ◽  
Fuel Oil ◽  
Oil Yield ◽  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Residual Fuel Oil ◽  
Heavy Vacuum Gas Oil

scholarly journals The Economics of Firing Heavy Fuels in Utility Gas Turbines

1997 ◽  
Author(s):  
R. Singh ◽  
M. S. Baker
Keyword(s):  
Gas Turbine ◽  
Gas Turbines ◽  
Developing Economies ◽  
Cost Savings ◽  
Combined Cycle ◽  
Fuel Oil ◽  
Heavy Fuel Oil ◽  
Combined Cycle Plant ◽  
Heavy Fuels ◽  
Base Load

Heavy fuel oil is of interest for firing in utility gas turbine and combined cycle plant, particularly in the developing economies of Asia and Latin America. There are few detailed studies published, which justify in commercial terms the use of heavy fuels in utility gas turbine plant or indicate the scenarios when this should be considered. Whilst this technology/fuel combination is mature and can be considered proven, awareness of the option and the technical and commercial implications is not widespread. This paper outlines the technical and commercial implications of firing heavy fuels in open cycle peaking and base load combined cycle plant. An economic comparison is made with the alternative fuel and technology options. It is demonstrated that firing heavy fuels in base load combined cycle plant can yield significant cost savings compared to using alternative technologies and liquid fuels, provided the emissions limits are not restrictive.

Airblast Atomization of Alternative Liquid Petroleum Fuels under High Pressure Conditions

1981 ◽  
Vol 103 (3) ◽  
pp. 514-518 ◽  
Author(s):  
A. K. Jasuja
Keyword(s):  
Fuel Oil ◽  
Gas Oil ◽  
Sauter Mean Diameter ◽  
Turbine Engine ◽  
Residual Fuel Oil ◽  
Wide Range ◽  
The Mean ◽  
Petroleum Fuels ◽  
Correlating Equation ◽  
Light Scattering Technique

A study has been conducted of the effects that fuel and air properties have upon the mean droplet size characteristics of a pre-filming airblast atomizer of the type commonly employed in the gas turbine engine. The fuels tested included kerosine, gas oil and two blends of gas oil in residual fuel oil. The tests were carried out over a wide range of air pressures (about 1 to 13 atmospheres), fuel viscosities (about 0.001 to 0.037 Ns/m2) and the spray mean drop sizes were measured using a laser light-scattering technique. The experimental data accumulated in the study is presented in the paper and it is concluded that the spray Sauter Mean Diameter performance of the atomizer studied can be predicted to a reasonable degree of accuracy, over the range of conditions studied, by a relatively simple correlating equation.

Staged Premix EV Combustion in Alstom’s GT24 Gas Turbine Engine

2012 ◽  
Author(s):  
Daniel Guyot ◽  
Thiemo Meeuwissen ◽  
Dieter Rebhan
Keyword(s):  
Gas Turbine ◽  
Distribution System ◽  
Fuel Oil ◽  
Operational Flexibility ◽  
Nox Formation ◽  
Diffusion Type ◽  
Fuel Gas ◽  
Start Up ◽  
Reduce Emissions ◽  
Ev Burner

Reducing gas turbine emissions and increasing their operational flexibility are key targets in today’s gas turbine market. In order to further reduce emissions and increase the operational flexibility of its GT24, Alstom has introduced an internally staged premix system into the GT24’s EV combustor. This system features a rich premix mode for GT start-up and a lean premix mode for GT loading and baseload operation. The fuel gas is injected through two premix stages, one injecting fuel into the burner air slots and one injecting fuel into the centre of the burner cone. Both premix stages are in continuous operation throughout the entire operating range, i.e. from ignition to baseload, thus eliminating the previously used pilot operation during start-up with its diffusion-type flame and high levels of NOx formation. The staged EV combustion concept is today a standard on the current GT26 and GT24. The EV burners of the GT26 are identical to the GT24 and fully retrofittable into existing GT24 engines. Furthermore, engines operating only on fuel gas (i.e. no fuel oil operation) no longer require a nitrogen purge and blocking air system so that this system can be disconnected from the GT. Only minor changes to the existing GT24 EV combustor and fuel distribution system are required. This paper presents validation results for the staged EV burner obtained in a single burner test rig at full engine pressure, and in a GT24 field engine, which had been upgraded with the staged EV burner technology in order to reduce emissions and extend the combustor’s operational behavior.

scholarly journals Wall Temperature Measurements in Gas Turbine Combustors With Thermographic Phosphors

2018 ◽  
Vol 141 (4) ◽  
Author(s):  
Patrick Nau ◽  
Zhiyao Yin ◽  
Oliver Lammel ◽  
Wolfgang Meier
Keyword(s):  
Gas Turbine ◽  
Wall Temperature ◽  
Gas Turbines ◽  
High Speed ◽  
Bluff Body ◽  
Temperature Measurements ◽  
Transient Temperature ◽  
High Time Resolution ◽  
Ceramic Surface ◽  
Precessing Vortex Core

Phosphor thermometry has been developed for wall temperature measurements in gas turbines and gas turbine model combustors. An array of phosphors has been examined in detail for spatially and temporally resolved surface temperature measurements. Two examples are provided, one at high pressure (8 bar) and high temperature and one at atmospheric pressure with high time resolution. To study the feasibility of this technique for full-scale gas turbine applications, a high momentum confined jet combustor at 8 bar was used. Successful measurements up to 1700 K on a ceramic surface are shown with good accuracy. In the same combustor, temperatures on the combustor quartz walls were measured, which can be used as boundary conditions for numerical simulations. An atmospheric swirl-stabilized flame was used to study transient temperature changes on the bluff body. For this purpose, a high-speed setup (1 kHz) was used to measure the wall temperatures at an operating condition where the flame switches between being attached (M-flame) and being lifted (V-flame) (bistable). The influence of a precessing vortex core (PVC) present during M-flame periods is identified on the bluff body tip, but not at positions further inside the nozzle.

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