Development and use of a method for prediction of the ash split in a CFBC boiler to improve the energy efficiency

Nari Soundarrajan; Peter L. Rozelle; Sarma V. Pisupati

doi:10.1016/j.fuel.2008.04.040

Development and use of a method for prediction of the ash split in a CFBC boiler to improve the energy efficiency

Nari Soundarrajan, Peter L. Rozelle, Sarma V. Pisupati

John and Willie Leone Department of Energy & Mineral Engineering (EME)

Research output: Contribution to journal › Article › peer-review

5 Citations (SciVal)

Abstract

A model has been developed to predict the flow rates of solids (bottom ash and flyash) out of a circulating fluidized bed (CFB) boiler, using fuel and sorbent properties and the plant solids feed data. Fuel particles were separated by density and size classes, and characterized. The attrition of coarse fuel particles that form flyash after combustion is quantified by means of an attrition coefficient for each particle class. The model was used to calculate attrition coefficients for the heavier (higher mineral content) fuel particles which were obtained by gravity separation (float-sink analysis). Toward this end, solids analyses and operating data from two commercial CFB power plants in Pennsylvania were used. This model can be of use for assessing the ability of the flyash and bottom ash handling systems in a CFB power plant to handle the ash streams produced when a plant changes fuels.

Original language	English (US)
Pages (from-to)	9-15
Number of pages	7
Journal	Fuel
Volume	102
DOIs	https://doi.org/10.1016/j.fuel.2008.04.040
State	Published - Dec 2012

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
Organic Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.fuel.2008.04.040

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title = "Development and use of a method for prediction of the ash split in a CFBC boiler to improve the energy efficiency",

abstract = "A model has been developed to predict the flow rates of solids (bottom ash and flyash) out of a circulating fluidized bed (CFB) boiler, using fuel and sorbent properties and the plant solids feed data. Fuel particles were separated by density and size classes, and characterized. The attrition of coarse fuel particles that form flyash after combustion is quantified by means of an attrition coefficient for each particle class. The model was used to calculate attrition coefficients for the heavier (higher mineral content) fuel particles which were obtained by gravity separation (float-sink analysis). Toward this end, solids analyses and operating data from two commercial CFB power plants in Pennsylvania were used. This model can be of use for assessing the ability of the flyash and bottom ash handling systems in a CFB power plant to handle the ash streams produced when a plant changes fuels.",

author = "Nari Soundarrajan and Rozelle, {Peter L.} and Pisupati, {Sarma V.}",

note = "Funding Information: This work was performed under a Department of Energy under Contract No. DE-AP26-02NT20835. The cooperation and assistance of the plant members of ARIPPA is acknowledged. “The Materials Characterization Laboratory” and “The Energy Institute” at Penn State are acknowledged for the use of laboratory facilities and technical assistance of their personnel. ",

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doi = "10.1016/j.fuel.2008.04.040",

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AU - Soundarrajan, Nari

AU - Rozelle, Peter L.

AU - Pisupati, Sarma V.

N1 - Funding Information: This work was performed under a Department of Energy under Contract No. DE-AP26-02NT20835. The cooperation and assistance of the plant members of ARIPPA is acknowledged. “The Materials Characterization Laboratory” and “The Energy Institute” at Penn State are acknowledged for the use of laboratory facilities and technical assistance of their personnel.

PY - 2012/12

Y1 - 2012/12

N2 - A model has been developed to predict the flow rates of solids (bottom ash and flyash) out of a circulating fluidized bed (CFB) boiler, using fuel and sorbent properties and the plant solids feed data. Fuel particles were separated by density and size classes, and characterized. The attrition of coarse fuel particles that form flyash after combustion is quantified by means of an attrition coefficient for each particle class. The model was used to calculate attrition coefficients for the heavier (higher mineral content) fuel particles which were obtained by gravity separation (float-sink analysis). Toward this end, solids analyses and operating data from two commercial CFB power plants in Pennsylvania were used. This model can be of use for assessing the ability of the flyash and bottom ash handling systems in a CFB power plant to handle the ash streams produced when a plant changes fuels.

AB - A model has been developed to predict the flow rates of solids (bottom ash and flyash) out of a circulating fluidized bed (CFB) boiler, using fuel and sorbent properties and the plant solids feed data. Fuel particles were separated by density and size classes, and characterized. The attrition of coarse fuel particles that form flyash after combustion is quantified by means of an attrition coefficient for each particle class. The model was used to calculate attrition coefficients for the heavier (higher mineral content) fuel particles which were obtained by gravity separation (float-sink analysis). Toward this end, solids analyses and operating data from two commercial CFB power plants in Pennsylvania were used. This model can be of use for assessing the ability of the flyash and bottom ash handling systems in a CFB power plant to handle the ash streams produced when a plant changes fuels.

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JO - Fuel

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Development and use of a method for prediction of the ash split in a CFBC boiler to improve the energy efficiency

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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