基于局部管网的天然气能量计量赋值算法

doi:10.3969/j.issn.1000-1158.2023.01.12

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Abstract In the current process of natural gas custody transfer in our country, the measurement method is mostly volume measurement. This measurement method not only cannot meet the commodity transaction principle of natural gas price based on quality, high quality and good price, but also needs to rely on expensive chromatograph analysis. Natural gas energy metering can avoid the defects caused by volume metering, and at the same time, the metering method has high accuracy, and it has increasingly become the method of natural gas trade settlement in various countries in the world. Based on the assignment algorithm of natural gas energy measurement established by the local natural gas pipeline network, the natural gas energy within one week is predicted, and the predicted value is compared with the measured value. The relative error between the predicted value and the measured value is controlled at about 1.8440%, indicating that the established assignment algorithm can predict the calorific value of natural gas within a certain period of time.

Key words： metrology natural gas energy metering assignment algorithm traceability

Received: 06 September 2021 Published: 13 January 2023

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TB937

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	Articles by authors
	Lü Hai-zhou
	YANG Jing-dong
	LIU Wan-ying
	GE Xian-fu

Cite this article:

Lü Hai-zhou,YANG Jing-dong,LIU Wan-ying, et al. Calculation and Assignment Algorithm of Natural Gas Energy Based on Local Pipe Network[J]. Acta Metrologica Sinica, 2023, 44(1): 80-87.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.01.12 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I1/80

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