Recent developments in gas turbine materials and technology and their implications for syngas firing

Wright, I.G.; Gibbons, Thomas B.

doi:10.1016/j.ijhydene.2006.08.049

Cited by 133 publications

(64 citation statements)

References 26 publications

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“…Controlled additions of reactive elements such as Y and Hf also can be used to counter the effects of S; such additions have been also shown significantly to modify the growth mechanism of the TGO and reduce its rate of growth, which promises to extend TBC lifetimes (Pint et al 1998). Overall, improvements in understanding of the mechanisms of TBC degradation are providing routes for further improvements in their durability (Wright and Gibbons 2007). There has been a significant interest in the development of thermally grown oxides (TGO) in a deposited overlay (Choi et al 2010).…”

Section: Improving Gt Efficiency Through Thermal Barrier Coatings Tbcmentioning

confidence: 99%

“…The integrity of the coating will depend on the ability of the alloy to grow an oxide layer with an appropriate combination of properties. While this approach can reduce costs and weight, it has been suggested that the life of a TBC system can be improved when the bond coating is eliminated because the TGO formed on the substrate benefits from the strength of the underlying alloy and, thus, has a greater resistance to buckling during thermal cycling (Wright and Gibbons 2007;Walston 2004).…”

Section: Improving Gt Efficiency Through Thermal Barrier Coatings Tbcmentioning

confidence: 99%

“…Nye Thermodynamics Corporation (NTC) 2011; Zeren 1982;Schulz et al 2008;Braue et al 2007;Huda et al 2011;Jianting 2011;Cao and Loria 2005;Sajjadi and Nategh 2001;Sajjadi et al 2002;Zickler et al 2009;Perepezko 2009;Todd 1989;Kansai Electric Power Company (KEPCO) 2011;Diologent and Caron 2004;Kennedy 2005;Kitazawa et al 2010;Pint et al 1998;Wright and Gibbons 2007;Choi et al 2010;Walston 2004;Troczynski et al 1996;DeMasi-Marcinand and Gupta 1994;Movchan 1996;Schulz et al 1997;Padture et al 2002;Boccaccini and Zhitomirsky 2002;Boccaccini et al 2006;Besra and Liu 2007;Corni et al 2008;Dusoulier et al 2011;Doungdaw et al 2005;Mohanty et al 2008;Put et al 2003 Use TBC using EPD/EBPVD MHI, J-series engine operating at TIT = 1,600°C has achieved efficiency exceeding 60%…”

Section: A New Chart For Gt Researchers Designers and Manufacturersmentioning

confidence: 99%

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Enhancing power output and profitability through energy-efficiency techniques and advanced materials in today’s industrial gas turbines

Huda

Zaharinie

Al-Ansary

2014

Int J Mech Mater Eng

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This paper reviews and integrates the latest energy-efficiency improvement techniques to recently developed superalloys and coatings for enhancing power output and profitability in today's industrial gas turbines (GTs). It has been shown that the retrofitting of inlet air cooling and steam injected gas technology technologies in simple turbines can boost power output from 30 to 48.25 MW and improve generation efficiency from 29.9% to 33.4%. It has been reviewed that for improving efficiency of power plants beyond 60%, it is important to use higher turbine inlet temperature (TIT) in combined cycle gas turbine by applying single-crystal nickel-based superalloys and thermal barrier coating involving closed-loop steam cooling. It has been shown that an increase of the TIT by 56°C can result in increased revenue of US$8/kW to the manufacturer of the original rating, provided the GT is sold for US$200/kW. In view of the latest development in GT technology, which enables them to be operated at TIT = 1,600°C, it is recommended to develop superalloys based on higher-melting temperatures (Mo-based superalloys). A new chart for increasing power output has been developed so as to enable the GT designers to manufacture GT engines with enhanced profitability.

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Section: Improving Gt Efficiency Through Thermal Barrier Coatings Tbcmentioning

confidence: 99%

Section: Improving Gt Efficiency Through Thermal Barrier Coatings Tbcmentioning

confidence: 99%

Section: A New Chart For Gt Researchers Designers and Manufacturersmentioning

confidence: 99%

See 1 more Smart Citation

Enhancing power output and profitability through energy-efficiency techniques and advanced materials in today’s industrial gas turbines

Huda

Zaharinie

Al-Ansary

2014

Int J Mech Mater Eng

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“…Coutsouradis et al reviewed the applications of cobalt-base superalloys for combustor and other components in gas turbines (Coutsouradis et al, 1987). Nickel base superalloys 617 and 230 find wide application for combustor components (Wright & Gibbons, 2007). In addition to designing with improved materials, combustion liners and transition pieces of advanced and uprated machines involving higher firing temperatures are given a thermal barrier coating (TBC).…”

Section: Combustion Hardware For Aircraft and Industrial Gas Turbinesmentioning

confidence: 99%

Materials for Gas Turbines – An Overview

Muktinutalapati¹

2011

Advances in Gas Turbine Technology

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“…There is an ongoing need for developing high temperature self-lubricating materials to meet the severe conditions of mechanical systems, such as advanced engines which require increasingly high working temperatures (at 1000 °C or above) and long life [1][2][3][4][5][6][7]. However, achieving and maintaining low friction and wear at high temperatures have been very difficult in the past and still are the toughest problems encountered in the field of tribology [8,9].…”

Section: Introductionmentioning

confidence: 99%