Fluidized Bed Combustion

Oka, Simeon; Anthony, E

doi:10.1201/9781420028454

Cited by 63 publications

(51 citation statements)

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“…The combustion efficiency of a bubbling fluidized bed (BFB) boiler is typically up to 90% without fly-ash recirculation and could increase to 98-99% with recirculation (Oka, 2004). The efficiency of a circulating fluidized bed (CFB) boiler is generally higher due to its tall furnace and large internal solid recirculation.…”

Section: Schematic Flue Gas Path and Steam Generation Path In Boiler mentioning

confidence: 99%

Design Aspects of Bubbling Fluidised Bed Boiler for Municipal Solid Waste

Prasad¹

2017

IJRASET

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Continuous growth in global municipal waste, increasing legislation and an acute shortage of suitable landfill sites are a serious concern for a sustainable environment. The generation of municipal solid waste (MSW) is found to increase with increasing population. Fluidized bed combustion technology gives solutions to the municipal waste disposal. Bubbling fluidized bed combustion technology is emerging as a potential technology for incineration of all solid wastes and have advantages over other types in concern of emissions of gases which affect environment. The present work deals with the design of furnace with heat load estimations for optimal conditions to recover energy from municipal solid waste. The geometrical dimensions are estimated taking few constraints into consideration to handle the requisite amount of waste and generating steam out of waste.

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Section: Schematic Flue Gas Path and Steam Generation Path In Boiler mentioning

confidence: 99%

Design Aspects of Bubbling Fluidised Bed Boiler for Municipal Solid Waste

Prasad¹

2017

IJRASET

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“…Some of these correlations are summarized [75][76][77][78][79][80][81]. As an example some of the equations for the elutriation coefficient can be presented in the form …”

Section: Elutriation Of Particles From the Dense Bedmentioning

confidence: 99%

Release Profile of Volatiles in Fluidised Bed Combustion of Biomass

Saastamoinen¹

2014

J Fundam Renewable Energy Appl

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A simplified model for the release profile of volatiles in fluidised and circulating fluidised beds is presented. The location of the release of volatiles in the furnace depends on the interplay of flow of fuel particles affecting their location and heating of fuel particles affecting rates of drying and pyrolysis and consequently the mass of fuel particles. The coupled equations describing heating, de-volatilization including drying, elutriation and movement of particles are solved to find the release profile. Large heavy particles remain in the dense bed whereas light particles are entrained by the gas and elutriated from the bed to the riser. The situation is dynamic, since fuel particles lose weight due to release of moisture and volatiles and decrease in size due to shrinkage affecting their movement and escape from the lower dense bed to the riser. The model is based on the following the fate of a small batch of fuel particles undergoing de-volatilization and elutriation from the dense bed. The model predicts the location of the release of volatiles and the profile of the release of volatiles in the riser. Part of volatiles is released in the dense bed and the rest above the bed in the riser.

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“…Conversely, fluidised bed combustion (FBC) has quickly won industry preference due to its ability to burn materials as diverse as low-grade coals, biomass, and industrial and municipal waste (Oka and Anthony 2004). Fluidised beds suspend solid fuels on upward-blowing jets of air during the combustion process.…”

Section: Furnaces and Burnersmentioning

confidence: 99%

Efficiency-improving fossil fuel technologies for electricity generation: Data selection and trends

Lanzi¹,

Verdolini²,

Haščič³

2011

Energy Policy

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SummaryThis paper studies innovation dynamics in efficiency improving electricity generation technologies as an important means of mitigating climate change impacts. Relevant patents are identified and used as an indicator of innovation. We find that patenting in efficiency improving technologies has mostly been stable over time, with a recent decreasing trend. We also find that majority of patents are first filed in OECD countries and only then in non-OECD or BRIC countries. Conversely, non-OECD and BRIC countries apply for patents that are mostly marketed domestically. This result shows that there is significant technology transfer in the field of efficiency improving technologies for electricity production. This flow of know-how is likely to contribute to mitigation of greenhouse gases emissions in emerging economies in the long run. Abstract: This paper studies innovation dynamics in efficiency improving electricity generation technologies as an important means of mitigating climate change impacts. Relevant patents are identified and used as an indicator of innovation. We find that patenting in efficiency improving technologies has mostly been stable over time, with a recent decreasing trend. We also find that majority of patents are first filed in OECD countries and only then in non-OECD or BRIC countries. Conversely, non-OECD and BRIC countries apply for patents that are mostly marketed domestically. This result shows that there is significant technology transfer in the field of efficiency improving technologies for electricity production. This flow of know-how is likely to contribute to mitigation of greenhouse gases emissions in emerging economies in the long run. Keywords

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Fluidized Bed Combustion

Cited by 63 publications

References 0 publications

Design Aspects of Bubbling Fluidised Bed Boiler for Municipal Solid Waste

Design Aspects of Bubbling Fluidised Bed Boiler for Municipal Solid Waste

Release Profile of Volatiles in Fluidised Bed Combustion of Biomass

Efficiency-improving fossil fuel technologies for electricity generation: Data selection and trends

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