华电技术 ›› 2020, Vol. 42 ›› Issue (3): 67-71.

• 超低排放与碳减排 • 上一篇    下一篇

中国燃煤火电机组碳氧化因子测算方法及规律性分析

  

  1. 1.清华大学 工程物理系,北京 100084;2.中国科学院生态环境研究中心 城市与区域生态国家重点实验室,北京 100085;3.北京金恒博远科技股份有限公司,北京 100076
  • 出版日期:2020-03-25

Measurement method and regularity analysis on carbon oxidation factor of coal-fired power units in China #br#

  1. 1.Department of Engineering Physics,Tsinghua University,Beijing 100084,China;2.State Key Laboratory of Urban and
    Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,
    Beijing 100085,China;3.Beijing JHBY Technology Company Limited,Beijing 100076,China
  • Published:2020-03-25

摘要: 碳氧化因子(COF)是计量燃煤火电机组碳排放量的重要参数之一,碳氧化因子测算方法的选取对于提高
燃煤火电机组碳排放计量的准确性具有重要意义。政府间气候变化专门委员会(Intergovernmental Panel on Climate
Change,IPCC)给出碳氧化因子的默认值为1,该默认值与我国实际碳氧化因子之间存在偏差。基于碳平衡分析,提
出了燃煤火电机组锅炉碳氧化因子测算模型,并根据机组技术特征、燃料特征、运行特征与地域分布进行了采样。
通过对70组测量样本进行分析,得到不同因素对碳氧化因子的影响规律。结果表明,我国碳氧化因子实际测试值
与IPCC默认值存在差异,差异范围为0.5%~6.0%。另外,煤质优劣是影响碳氧化因子最重要因素,在煤质较差的情
况下,机组容量、机组负荷等参数将对碳氧化因子产生显著影响。随着机组结构的不断调整以及技术水平的不断
提高,我国燃煤火电碳氧化因子实际值将与IPCC默认值越来越接近。

关键词: 碳氧化因子, 燃煤火电机组, 碳平衡分析, 测算方法, 碳氧化因子的默认值, 规律性

Abstract: Carbon oxidation factor(COF)is one of the important parameters for measuring the carbon emissions of coalfired power units. Selecting a proper COF measurement method is of great significance to improve the accuracy of the
carbon emission measurement for coal-fired power units. The default COF value of coal-fired power units given by the
Intergovernmental Panel on Climate Change(IPCC)is 1,which has a deviation from the actual COF value of China. Based
on the carbon balance analysis,a COF calculation model is proposed. By analyzing 70 COF samples taken according to
their technical characteristics,fuel characteristics,operating characteristics,and geographical distribution in China,the
results show that there are differences between the tested values in China and the default COF given by IPCC,whose
variation range is approximately 0.5%-6.0%. In addition,the quality of coal is another important factor affecting COF.
Upon taking coal of a poor quality ,parameters,such as unit capacity and unit load,will seriously affect COF value. With
the adjustment of the unit structure and development of technical levels ,the actual COF value of coal-fired power plants in
China will be closer to the default COF value of IPCC.

Key words: carbon oxidation factor, coal-fired power units, carbon balance analysis, measuring method, the default COF, regularity