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Position: Home > Articles > Uncertainty Evaluation for the Determination of Volatile Content in Bituminous Coal Journal of Green Science and Technology 2015 (6) 198-200

烟煤中挥发分含量测定的不确定度评定

作  者:
杨虹;于晓青
单  位:
天津市环境监测中心
关键词:
烟煤;挥发分;不确定度
摘  要:
依据《煤的工业分析方法》(GB/T 212-2008)对某烟煤的挥发分进行了测定,并分析了测量过程中不确定度的来源:煤样的两次称量、水分的测定、重复性等,在此基础上对各不确定度分量进行了评定,并计算得到了合成不确定度和扩展不确定度,最后提出了在测定过程中减小不确定度的有效途径。
译  名:
Uncertainty Evaluation for the Determination of Volatile Content in Bituminous Coal
作  者:
Yang Hong;Yu Xiaoqing;Tianjin Environmental Monitoring Center;
关键词:
bituminous coal;;volatile content;;uncertainty
摘  要:
The volatile content in bituminous coal is determined according to the Proximate Analysis of Coal(GB/T212-2008).The article also analyzes the main factors that affect the determination results of volatile content,including twice weighing of coal,determination of water and repeatability,etc.Based on this,the article measures the content of the uncertainty.then the synthetic uncertainty and expanded uncertainty are calculated.Finally,the article proposes the effective methods to improve the accuracy during the determination process.

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