High temperature erosion in coal combustion and conversion processes: Review

Wright, I.G.

doi:10.1016/0025-5416(87)90094-2

Cited by 19 publications

(3 citation statements)

References 8 publications

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“…On the assumption that oxidation is governed by a parabolic law, the growth of oxide scale thickness (Z) is described by equation (5). Thus the thickness of the oxide scale (Z b ) grown between two successive impacts is given by…”

Section: Oxide Scale Growth Between Impactsmentioning

confidence: 99%

“…Several engineering components are degraded due to solid particle erosion at elevated temperature. A number of industrial systems, which undergo erosion at elevated temperature, are summarized in table 1 [5][6][7][8]. At the same time, it should be mentioned that erosion could also be used constructively, as in the case of shot peening, sand blasting, mining, rock drilling and cutting applications, etc [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Elevated temperature erosive wear of metallic materials

Roy¹

2006

J. Phys. D: Appl. Phys.

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Solid particle erosion of metals and alloys at elevated temperature is governed by the nature of the interaction between erosion and oxidation, which, in turn, is determined by the thickness, pliability, morphology, adhesion characteristics and toughness of the oxide scale. The main objective of this paper is to critically review the present state of understanding of the elevated temperature erosion behaviour of metals and alloys. First of all, the erosion testing at elevated temperature is reviewed. This is followed by discussion of the essential features of elevated temperature erosion with special emphasis on microscopic observation, giving details of the erosion–oxidation (E–O) interaction mechanisms. The E–O interaction has been elaborated in the subsequent section. The E–O interaction includes E–O maps, analysis of transition criteria from one erosion mechanism to another mechanism and quantification of enhanced oxidation kinetics during erosion. Finally, the relevant areas for future studies are indicated.

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Section: Oxide Scale Growth Between Impactsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Elevated temperature erosive wear of metallic materials

Roy¹

2006

J. Phys. D: Appl. Phys.

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“…When particles impact turbine blades, they erode the aerodynamic surfaces, leading to efficiency degradation (Hamed et al 2006). Unwanted solid particulates can exist within flows through turbomachinery as a consequence of combusting coal and solid biomass fuels (Wright 1987;Wright et al 2000). Moreover, air-breathing gas turbines can ingest particulates from the environment (Hamed et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Energy Conversion During Expansion of a Solid-Particle-Entrained Gas

Ordonez

Weathers

Traum

2013

Particulate Science and Technology

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Pneumatic energy is converted into solid particle kinetic energy as a solid-particle-entrained gas flows downward through a vertical nozzle. For the conditions studied, the solid particles serve as a heat exchange medium to enable a gas expansion that is nearly isothermal. Also, the kinetic energy associated with the two-phase fluid is predominantly that associated with subsonic solidparticle motion. The kinetic energy of the solid particles is converted into other forms using a low-speed turbine. A theoretical description of the process is presented, and the initiation of an experimental effort to study the process is described. Experimental gas phase temperature measurements indicate the realization of isothermal expansion. Experimental turbine erosion rate measurements indicate that relatively low erosion rates occur for the conditions studied.

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The Technology Transfer Process: Solutions to Industrial Problems

Heimann

1996

Plasma‐Spray Coating

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High temperature erosion in coal combustion and conversion processes: Review

Cited by 19 publications

References 8 publications

Elevated temperature erosive wear of metallic materials

Elevated temperature erosive wear of metallic materials

Energy Conversion During Expansion of a Solid-Particle-Entrained Gas

The Technology Transfer Process: Solutions to Industrial Problems

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