中国燃煤火电机组碳氧化因子测算方法及规律性分析  

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

作　　者：吴汉栋 赵春黎 彭尊 WU Handong;ZHAO Chunli;PENG Zun(Department of Engineering Physics,Tsinghua University,Beijing 100084,China;State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;Beijing JHBY Technology Company Limited,Beijing 100076,China)

机构地区：[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　　处：《华电技术》2020年第3期67-71,共5页HUADIAN TECHNOLOGY

基　　金：中国博士后科学基金(2019M650631)。

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。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.

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 

分 类 号：TK01[动力工程及工程热物理]