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| Application of Uncertainty Assessment Method of Natural Gas Physical Parameters in Flow Measurement Standards |
| LIU Zhe1,2,SONG Chao-fan1,2,WANG Duo-cai1,2,LI Xue-jian1,2, WANG Xin-liang1,2,YU Hao1,2 |
1.Nanjing Branch of National Station of Petroleum &Natural Gas Flow Measurement, Nanjing, Jiangsu 210058,China
2.Guangzhou Branch of National Station of Petroleum &Natural Gas Flow Measurement, Guangzhou, Guangdong 510940, China |
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Abstract Through researching the uncertainty evaluation method of natural gas physical properties using in the natural gas flowrate measurement standard,and the uncertainty evaluation method of natural gas component analysis using to calculate those physical properties,derives the uncertainty evaluation method of the natural gas flowrate measurement standard,with GUM method. Using those methods and the testing data of some domestic natural gas flowrate meter calibration station, to evaluate measurement uncertainties of mt primary measurement standard,critical flow venture nozzle secondary measurement standard,turbine meter working measurement standard and their calibrating meters. At the same time, gives the suggestion of the CRMs class using in natural gas component analysis for defferent measurement standard.
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［1］国家质量监督检验总局. JJF 1059.1—2012 测量不确定度评定与表示 ［S］. 2012.
［2］国家质量监督检验总局. GB/T 11062—2014 天然气 发热量、密度、相对密度和沃泊指数的计算方法 ［S］. 2014.
［3］国家质量监督检验总局. GB/T 17747—2011 天然气压缩因子的计算 ［S］. 2011.
［4］张福元, 张娅娜, 杨鸣. 天然气组成分析及物性参数计算不确定度浅析［J］. 石油与天然气化工, 2006, 35(1): 65-69.
［5］闫文灿, 王池, 裴全斌, 等. 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.
［6］国家质量监督检验总局. GB/T 35186—2017 天然气计量系统性能评价 ［S］. 2017.
［7］韩志, 王健, 罗哉. 质量基准量值传递过程中空气浮力影响的研究［J］.计量学报, 2018, 39(2): 151-154.
［8］国家质量监督检验总局. JJG 620—2008 临界流文丘里喷嘴 ［S］. 2008.
［9］国明昌, 杨博. mt法高压天然气流量原级标准装置不确定度评定及验证分析［J］. 工业计量, 2015, 25(5): 57-63. |
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2018, Vol. 39 
