STUDY ON CORRELATIVITY BETWEEN UNBURNED CARBON IN FLY ASH OF BOILERS AND THE COMBUSTION PROPERTIES OF COAL

ZHAO Hong1; ZHANG Xiangyu1; LI Pei1; YANG Jianguo1; FENG Guohua1; WANG Liye21.State-level Key Laboratory of Clean Energy Utilization

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STUDY ON CORRELATIVITY BETWEEN UNBURNED CARBON IN FLY ASH OF BOILERS AND THE COMBUSTION PROPERTIES OF COAL

更新时间：2025-09-28

- STUDY ON CORRELATIVITY BETWEEN UNBURNED CARBON IN FLY ASH OF BOILERS AND THE COMBUSTION PROPERTIES OF COAL
- Thermal Power Generation Vol. 40, Issue 8, Pages: 41-44(2011)
- 作者机构：
  
  1. 浙江大学能源清洁利用国家重点实验室
  2. 浙江浙能乐清发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK224.1
- Published：2011
- 稿件说明：
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ZHAO Hong1, ZHANG Xiangyu1, LI Pei1, et al. STUDY ON CORRELATIVITY BETWEEN UNBURNED CARBON IN FLY ASH OF BOILERS AND THE COMBUSTION PROPERTIES OF COAL[J]. Thermal power generation, 2011, 40(8): 41-44.
DOI：

ZHAO Hong1, ZHANG Xiangyu1, LI Pei1, et al. STUDY ON CORRELATIVITY BETWEEN UNBURNED CARBON IN FLY ASH OF BOILERS AND THE COMBUSTION PROPERTIES OF COAL[J]. Thermal power generation, 2011, 40(8): 41-44. DOI：

摘要

燃煤特性是锅炉飞灰含碳量的重要影响因素之一。选择了8种典型发电用煤进行热分析(TGA)试验

并在1台超临界600 MW机组锅炉上进行试烧

利用相关分析及回归分析得到了热分析特征参数与飞灰含碳量的关系。试烧及热分析结果表明

热分析着火温度指数与飞灰含碳量相关性水平较低

而燃尽温度指数与飞灰含碳量高度相关

可以通过热分析试验并利用回归模型初步判断锅炉燃用新煤种的飞灰含碳量变化趋势。

Abstract

The properties of fuel coal are important factors affecting the unburned carbon content in fly ash of boilers.Eight typical coal sorts used for electric power generation have been selected

and test of thermogravimetric analysis(TGA) being carried out

and trial combustion in one boiler of supercritical 600 MW unit being conducted

the relationship between characteristic parameters of TGA and unburned carbon content in fly ash being obtained by using the correlation analysis and the regression analysis.Trial combustion and TGA show that the changing tendency of unburned carbon content in fly ash of new coal sort burned in the boiler can be premarily judged through TGA test and using the regression model.

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