Process calculation of natural gas flow meter verification based on MATLAB

With a new round of gas pipeline project construction such as"Burma-China pipeline", "the second and third line of West-East natural gas transmission project" and "liquefied natural gas ashore", the flow meters for measuring gas flow are increasing. The only way to ensure these meters work accurately is to calibrate these meters precisely, which will make it more equitable for the transfer of natural gas trade. In this paper, basing on three levels of gas flow meter verification station, considering the influence of the increase of kinetic energy along the pipeline's on flow, the pressure loss model is established when natural gas flows in the verified pipe, and the parameters variation in different caliber meters calibration by MATLAB software are calculated, then the pressure difference is solved and the uncertainty in certification process is calculated, which conforms to the natural gas dispatching request.