LNG接收站到港贸易交接计量误差及影响因素分析.

In response to the continuous increase in the country's demand for LNG, improving the measurement accuracy of arrival trade at LNG receiving stations has become a top priority. Methods The causes of errors are analyzed with the basic standards, basic charact eristics, and receiving process of LNG international trade transfer, and at the same time the calculation formula of measurement errors is derived by using error propagation theory. Results By reducing the calorific value measurement error and improving the accuracy of liquid level measurement and gas chromatography measurement, the influencing factors in the calculation of the LNG example were reduced. Conclusions. A more accurate measurement error rate is obtained so as to improve the measurement accuracy of arrival trade, which can provide a basis for the measurement error calculation and management of domestic LNG receiving stations. [ABSTRACT FROM AUTHOR]