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| 气相色谱法测量天然气热值的不确定度评定 | |
| 引用本文： | 闫文灿,王池,裴全斌,王海峰,李春辉,沈超. 气相色谱法测量天然气热值的不确定度评定[J]. 计量学报, 2018, 39(2): 280-284. DOI: 10.3969/j.issn.1000-1158.2018.02.29 |
| 作者姓名： | 闫文灿 王池 裴全斌 王海峰 李春辉 沈超 |
| 作者单位： | 1.中国石化天然气分公司 计量研究中心, 湖北 武汉 430073 2. 中国计量科学研究院, 北京 100029 |
| 摘 要： | 根据天然气能量计量的研究现状和应用需求,提出了一种天然气发热量测量方法。该方法采用气相色谱仪测量天然气高位发热量,使用不同热值的标准气体对气相色谱仪进行标定,验证了标准物质的一致性及仪器的测量能力。对天然气发热量的测量结果进行不确定度评定,结果表明:在线气相色谱仪的扩展相对不确定度在0.15%～0.30%范围内。 |
| 关 键 词： | 计量学 发热量 能量计量 气相色谱仪 天然气 不确定度 |
| 收稿时间： | 2016-11-30 |
Uncertainty Evaluation on the Calorific Value of Natural Gas by GC |
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| YAN Wen-can,WANG Chi,PEI Quan-bin,WANG Hai-feng,LI Chun-hui,SHEN Chao. Uncertainty Evaluation on the Calorific Value of Natural Gas by GC[J]. Acta Metrologica Sinica, 2018, 39(2): 280-284. DOI: 10.3969/j.issn.1000-1158.2018.02.29 | |
| Authors: | YAN Wen-can WANG Chi PEI Quan-bin WANG Hai-feng LI Chun-hui SHEN Chao |
| Affiliation: | 1. Sinopec Branch of Natural Gas Measurement Research Center, Wuhan, Hubei 430073, China 2. National Institute of Metrology, Beijing 100029, China |
| Abstract: | According to the current status and requirements of energy determination of natural gas, the measuring method of the calorific value of natural gas was investigated. The gas chromatograph (GC) was used to measure high calorific value. The GC was calibrated with standard gas with different calorific value in order to verify the consistent of the standard gas and the measurement accuracy of GC. The uncertainty evaluation method of the natural gas calorific value was presented. The results of the analysis showed that the relative expanded uncertainty of measurement results from on line GC could be within 0.15%～0.30%. |
| Keywords: | metrology calorific value energy determination gas chromatograph natural gas uncertainty |
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