Review of the New Combustion Technologies in Modern Gas Turbines

El-Hossaini, Mostafa Khosravy

doi:10.5772/54403

Cited by 19 publications

(11 citation statements)

References 57 publications

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“…An example of a Turbec T100 being modified for flameless combustion can be seen in ref. [22], with further reading on micro gas turbines available in references [23] and [24].…”

Section: Initial Design Decisionmentioning

confidence: 99%

Design, simulation, and validation of additively manufactured high-temperature combustion chambers for micro gas turbines

Adamou

Turner

Costall

et al. 2021

Energy Conversion and Management

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“…An example of a Turbec T100 being modified for flameless combustion can be seen in ref. [22], with further reading on micro gas turbines available in references [23] and [24].…”

Section: Initial Design Decisionmentioning

confidence: 99%

Design, simulation, and validation of additively manufactured high-temperature combustion chambers for micro gas turbines

Adamou

Turner

Costall

et al. 2021

Energy Conversion and Management

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“…• Extends flammability limits and improves flame stability (Khosravy, 2013). The "rich-burn" condition in the primary zone enhances the stability of the combustion reaction through the generation and maintenance of high concentrations of energetic hydrogen and hydrocarbon radical species.…”

Section: Figure 1 Requirements For Advanced Gas Turbine Engine Combustormentioning

confidence: 99%

Design methodology for combustor in advanced gas turbine engines: a review

Kim,

Jin,

et al. 2024

AEAT

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Purpose A combustor design is a particularly important and difficult task in the development of gas turbine engines. During studies for accurate and easy combustor design, reasonable design methodologies have been established and used in engine development. The purpose of this paper is to review the design methodology for combustor in development of advanced gas turbine engines. The advanced combustor development task can be successfully achieved in less time and at lower cost by adopting new and superior design methodologies. Design/methodology/approach The review considers the main technical problems (combustion, cooling, fuel injection and ignition technology) in the development of modern combustor design and deals with combustor design methods by dividing it into preliminary design, performance evaluation, optimization and experiment. The advanced combustion and cooling technologies mainly used in combustor design are mentioned in detail. In accordance with the modern combustor design method, the design mechanisms are considered and the methods used in every stage of the design are reviewed technically. Findings The improved performances and strict emission limits of gas turbine engines require the application of advanced technologies when designing combustors. The optimized design mechanism and reasonable performance evaluation methods are very important in reducing experiments and increasing the effectiveness of the design. Originality/value This paper provides a comprehensive review of the design methodology for the advanced gas turbine engine combustor.

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“…The exhaust gas recirculation normally exists in both conventional flame and flameless, but the difference is that the recirculated percentage in flameless shall be large [16]. Preheating the combustion air plays an important role in flameless combustion [11,[17][18][19][20][21]. Air preheating can be achieved either by electric heater [9], or by waste heat recovery applications.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of inlet air conditions on methane flameless combustion characteristics

Khodir,

El-Behery,

Elaskary

2023

J. Phys.: Conf. Ser.

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The current study investigates the influence of inlet air momentum and temperature for flameless characteristics. Three-dimensional computations were implemented by ANSYS FLUENT. A small-scale experimental combustor geometry was used for validation study. Turbulence modelling was performed by RNG k- ε model and the GRI-Eddy Dissipation Concept (GRI-EDC) model was used for the combustion modelling. The influence of inlet air velocity was investigated through using different air jet diameters at constant flow rate. Five different air jet diameters (4,6,8,10 and 12 mm) were studied. It was found that decreasing air jet diameter leads to an increase in the exhaust gas recirculation which reserve in mixture dilution (low O2 content mixture) subsequently, the reaction rate decreases which support the flameless mode creation. Also, this recirculated gas participates in heating up of fresh reactants which make the mixture tends to complete combustion. The influence of combustion air preheating temperature on NO and CO emissions were studied. CO and NO concentration were decreased with reducing the temperature of inlet preheated combustion air.

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Review of the New Combustion Technologies in Modern Gas Turbines

Cited by 19 publications

References 57 publications

Design, simulation, and validation of additively manufactured high-temperature combustion chambers for micro gas turbines

Design, simulation, and validation of additively manufactured high-temperature combustion chambers for micro gas turbines

Design methodology for combustor in advanced gas turbine engines: a review

Numerical study of inlet air conditions on methane flameless combustion characteristics

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