Ash Deposition in a Wood-Fired Gas Turbine

Ragland, Kenneth W.; Misra, Mahendra K.; Aerts, D.J.; Palmer, Carl A.

doi:10.1115/1.2814124

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…So far, a considerable amount of literature has been published on wood ash deposition (Baxter, 1993;Ragland et al, 1995;Wei et al, 2005;Nutalapati et al, 2007), however, there is little published data on the ash deposition behaviour of the wood pellets under air combustion and oxy-fuel combustion (Ohman et al, 2004;Wiinika et al, 2007;Houshfar et al, 2014). One of the studies on wood pellets combustion was presented by Ohman et al (2004) who tested six types of softwood sawdust and bark pellets in three 10-15 kW burners.…”

Section: Introductionmentioning

confidence: 99%

Effect of oxy-fuel combustion on ash deposition of pulverized wood pellets

et al. 2019

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HIGHLIGHTS Deposition tendencies of wood pellets are predicted by the ash stream compositions. Wood pellets have a low tendency for slagging and high tendency for fouling. Oxy-fuel combustion reduces slagging yet increases fouling tendencies of alkali sulphates. Oxy-fuel combustion can reduce the propensity of high-temperature corrosion problems. Ash behaviour of wood pellets is significantly changed when replacing air-fuel with oxy-fuel conditions.

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Section: Introductionmentioning

confidence: 99%

Effect of oxy-fuel combustion on ash deposition of pulverized wood pellets

et al. 2019

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“…These efficiency levels are unattainable by the direct use of biomass fuels because of the high sensitivity of gas turbines to erosion by solid particles, deposit formation by dust, and corrosion by molten ash or salts. Attempts have been made to operate modified gas turbines by direct combustion of wood (5), but even with turbine inlet temperatures (TIT) as low as 750C (1380F) serious problems have been experienced with the fuel ash (5). A TIT of 750C represents a large departure from normal modern gas turbine practice in which a TIT of 980-1200C is more usual.…”

Section: Biomass Fuel Characteristicsmentioning

confidence: 99%

Biomass Gasification for Gas Turbine Based Power Generation

Paisley

Anson

1997

Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations

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The Biomass Power Program of the US Department of Energy (DOE) has as a major goal the development of cost-competitive technologies for the production of power from renewable biomass crops. The gasification of biomass provides the potential to meet his goal by efficiently and economically producing a renewable source of a clean gaseous fuel suitable for use in high efficiency gas turbines. This paper discusses the development and first commercial demonstration of the Battelle high-throughput gasification process for power generation systems. Projected process economics are presented along with a description of current experimental operations coupling a gas turbine power generation system to the research scale gasifier and the process scaleup activities in Burlington, Vermont.

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“…The direct use of biomass as fuel in the topping cycle of a combined cycle power plant is restricted by the high sensitivity of the gas turbine blades to erosion by solid particles, deposit formation by dust and corrosion by molten ash or salt [10]. Biomass conversion to an ash-free form, usually by gasification, is required for its direct use in the topping cycle [11].…”

Section: Introductionmentioning

confidence: 99%

Perspectives for the direct firing of biomass as a supplementary fuel in combined cycle power plants

Datta

Mondal

Gupta

2008

Int. J. Energy Res.

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SUMMARYAn analysis of the performance of a gas turbine-steam turbine combined cycle with supplementary firing has been carried out. Natural gas is fired in the main combustor of the cycle, whereas biomass fuel is considered as the supplementary fuel. Although, supplementary firing is found to reduce the overall cycle efficiency, the low cost of biomass and the CO 2 -neutral attribute of its combustion reduce the specific fuel cost and specific CO 2 emission. The effects of pressure and temperature ratios of the topping cycle and main steam conditions of the bottoming cycle on the performance parameters of the combined cycle have been studied at different degrees of supplementary firing. The topping cycle temperature ratio is found to be the most critical parameter and its low value gives substantial advantages in lowering the fuel cost and CO 2 emission. Marginal advantages are also achieved at higher pressure ratio and better bottoming cycle main steam conditions.

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Ash Deposition in a Wood-Fired Gas Turbine

Cited by 11 publications

References 7 publications

Effect of oxy-fuel combustion on ash deposition of pulverized wood pellets

Effect of oxy-fuel combustion on ash deposition of pulverized wood pellets

Biomass Gasification for Gas Turbine Based Power Generation

Perspectives for the direct firing of biomass as a supplementary fuel in combined cycle power plants

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