Hundred years of fluidization for the conversion of solid fuels

Leckner, Bo G

doi:10.1016/j.powtec.2022.117935

Cited by 14 publications

(7 citation statements)

References 22 publications

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“…The boiler of Fig. 1 a had to be downgraded to operation at a lower load, and finally it was stopped [ 7 ]. The results shown below were obtained before the downgrading.…”

Section: The Design Of Bfb and Cfb Boilersmentioning

confidence: 99%

From bubbling to circulating fluidized bed combustion—development and comparison

Leckner

2024

Heliyon

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“…The boiler of Fig. 1 a had to be downgraded to operation at a lower load, and finally it was stopped [ 7 ]. The results shown below were obtained before the downgrading.…”

Section: The Design Of Bfb and Cfb Boilersmentioning

confidence: 99%

From bubbling to circulating fluidized bed combustion—development and comparison

Leckner

2024

Heliyon

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“…In recent decades, with the continuous development of circulating fluidized bed (CFB) combustion technology, CFB boiler units have been progressing towards larger furnace scale and higher steam parameters [1,2]. At present, the installed capacity of CFB boiler units in China exceeds 100 GW, accounting for approximately 12% of the total installed capacity of coal-fired power generation in the country.…”

Section: Introductionmentioning

confidence: 99%

Methods and Applications of Full-Scale Field Testing for Large-Scale Circulating Fluidized Bed Boilers

Dong,

Lu,

Zhang

et al. 2024

Energies

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Circulating fluidized bed (CFB) boilers offer a technically viable and environmentally friendly means for the clean and efficient utilization of solid fuels. However, the complex gas–solid two-phase flow processes within them have hindered a thorough resolution of prediction issues related to coupled combustion, heat transfer, and pollutant generation characteristics. To address the deficiencies in scientific research, meet the practical operational needs of CFB boilers, and comply with new carbon emission policies, conducting full-scale field tests on large-scale CFB boilers is needed, so that the complex gas–solid flow, combustion, and heat transfer mechanisms in the furnace can be comprehended. In this paper, issues related to large-scale CFB boilers, including the uniformity of air distribution, secondary air injection range, spatial distribution of oxygen consumption and combustion reactions, distribution of pollutant generation, hydrodynamic and heat transfer characteristics, coal feeding distribution characteristics, coal diffusion characteristics under thermal operating conditions, and engineering research on anti-wear technology, are reviewed. By integrating practical engineering applications, the basic methods and measurement techniques used in full-scale field tests for large-scale CFB boilers are summarized, providing a practical reference for conducting engineering tests with large-scale CFB boilers.

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“…In that way, the cost of cyclone technology is more expensive than standard MDC [14,15]. During the golden age of the development of fluidized bed boilers [16], industrial companies tried to find a more economic system. They developed several patents on an inertial impaction technology during the nineties.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on U-Beam Separator Device for Separating Solids from Gases

et al. 2023

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The inertial separator, developed for fluidized beds, is a key component for optimizing large installations that separate solids from gases. Despite industrial interest and numerous patents, few studies have been conducted on this subject. In this paper, the geometric arrangement conditions were studied and evaluated. The efficiency of separating solids from gas depends on several factors, such as the granulometry, density, particle size distribution, velocity, humidity, and temperature of the system. For the mid-range of fluidized bed boilers (1–20 MWth), the experimental study selected all data to be in the same condition as the industrial technology. The global performance of the system can be increased by 15% by selecting a better combination of the U-beam. Three rows of U-beams are a good compromise between performance and cost for high Reynolds numbers, while only two rows seem to be enough for lower Reynolds numbers.

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Hundred years of fluidization for the conversion of solid fuels

Cited by 14 publications

References 22 publications

From bubbling to circulating fluidized bed combustion—development and comparison

From bubbling to circulating fluidized bed combustion—development and comparison

Methods and Applications of Full-Scale Field Testing for Large-Scale Circulating Fluidized Bed Boilers

Experimental Study on U-Beam Separator Device for Separating Solids from Gases

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