Fuel flexibility, stability and emissions in premixed hydrogen-rich gas turbine combustion: Technology, fundamentals, and numerical simulations

Taamallah, Soufien; Vogiatzaki, Konstantina; Alzahrani, Fahad M; Mokheimer, Esmail M. A.; Habib, Mohamed A.; Ghoniem, Ahmed F.

doi:10.1016/j.apenergy.2015.04.044

Cited by 223 publications

(108 citation statements)

References 111 publications

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“…The highest TOTs which do not exceed 650°C are observed in the case of the most advanced gas turbines operating under a high turbine inlet temperature (1500°-1600°C [28]). The following examples can be quoted: Westinghouse 501G (597°C) [21], Siemens SGT6-8000H (627°C) [29], GE S107FA (603°C) [30] and GE-P9371FB (644°C) [31].…”

Section: Introductionmentioning

confidence: 97%

Thermo-economic optimization of heat recovery steam generator for a range of gas turbine exhaust temperatures

Nadir

Ghenaiet

Carcasci

2016

Applied Thermal Engineering

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Section: Introductionmentioning

confidence: 97%

Thermo-economic optimization of heat recovery steam generator for a range of gas turbine exhaust temperatures

Nadir

Ghenaiet

Carcasci

2016

Applied Thermal Engineering

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“…As these mixtures can vary significantly in chemical composition [3], the future combustion systems should be highly fuel flexible [2]. This, in turn, introduces further difficulties [2,6]. Variations in fuel properties can cause operational problems such as thermoacoustic instabilities [7] and flame flashback [6].…”

Section: Introductionmentioning

confidence: 97%

“…In principle, the problem is due to the high reactivity of hydrogen and subsequently higher flame speed of hydrogen blends compared to those of conventional fuels [4,11]. Currently, flame flashback is considered as one of the most significant technical barriers that hinder the development of hydrogen combustion systems [2,6].…”

Section: Introductionmentioning

confidence: 99%

“…Utilising lean premixed combustion and replacing conventional fuels with syngas [2,3] or, mixtures of hydrogen and gaseous hydrocarbons [4,5], are amongst the main means of addressing this challenge. As these mixtures can vary significantly in chemical composition [3], the future combustion systems should be highly fuel flexible [2]. This, in turn, introduces further difficulties [2,6].…”

Section: Introductionmentioning

confidence: 99%

“…Achieving major reductions in CO 2 emission, simultaneous with low NO x and other air pollutants, is a substantial challenge facing the power generation sector [1,2]. Utilising lean premixed combustion and replacing conventional fuels with syngas [2,3] or, mixtures of hydrogen and gaseous hydrocarbons [4,5], are amongst the main means of addressing this challenge.…”

Section: Introductionmentioning

confidence: 99%

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Generation of Adverse Pressure Gradient in the Circumferential Flashback of a Premixed Flame

Karimi

McGrath

Brown

et al. 2016

Flow Turbulence Combust

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Circumferential upstream propagation of a premixed flame in a region confined between two concentric tubes is considered. The cold flow in this configuration features rotational motion and the flame is modelled as an interface separating the burned and unburned gases. Through an analytical solution of the integral form of the governing equations, it is shown that the static pressure increases across the flame. Hence, the circumferential propagation of the flame is associated with the generation of an adverse pressure gradient. The theoretical prediction of the pressure increase is, further, supported by the experimental observations and discussed in the context of the theory of flame back pressure. The results extend the recent findings on the generation of adverse pressure gradient during the axial propagation of swirling flames, to the circumferential direction. It is argued that the demonstrated pressure gain across the flame can significantly facilitate flame flashback.

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2017

Hybrid Systems Based on Solid Oxide Fuel Cells

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Fuel flexibility, stability and emissions in premixed hydrogen-rich gas turbine combustion: Technology, fundamentals, and numerical simulations

Cited by 223 publications

References 111 publications

Thermo-economic optimization of heat recovery steam generator for a range of gas turbine exhaust temperatures

Thermo-economic optimization of heat recovery steam generator for a range of gas turbine exhaust temperatures

Generation of Adverse Pressure Gradient in the Circumferential Flashback of a Premixed Flame

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