| 天然气能量测量不确定度评定 |
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| 引用本文： | 沈超.天然气能量测量不确定度评定[J].计量与测试技术,2021,48(1):115-118. |
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| 作者姓名： | 沈超 |
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| 作者单位： | 中国石化天然气分公司计量研究中心,山东 济南250100 |
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| 摘 要： | 文中以天然气长输管道中超声流量计计量系统为例,通过分析系统配套的超声流量计、温度变送器、压力变送器、流量计算机以及在线气相色谱仪等计量器具对能量测得值不确定度的贡献,分别对其引入的不确定度进行了探讨,分析了能量测量的不确定度评定方法。
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| 关 键 词： | 能量测量 计量系统 发热量 不确定度评定 |
Evaluation of Uncertainty in Natural Gas Energy Measurement |
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| SHEN Chao.Evaluation of Uncertainty in Natural Gas Energy Measurement[J].Metrology and Measurement Technique,2021,48(1):115-118. |
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| Authors: | SHEN Chao |
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| Abstract: | The article takes the ultrasonic flowmeter measuring system in the natural gas long-distance pipeline as an example. Contributions to the uncertainty of energy measurement results are obtained through the analysis of measuring instruments such as ultrasonic flowmeters,temperature transmitters,pressure transmitters,flow computers,and online gas chromatographs. The uncertainty of each parameter is discussed separately,and the uncertainty evaluation method of energy measurement is analyzed. |
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| Keywords: | energy measurement measuring system calorific values evaluation of uncertainty |
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