A Discrete Differential Evolution Algorithm for VOCs Emission in Loading and Unloading Oil
LIANG Ying
BAI Yunyun
GAO Xuchun
LIU Jieying
Abstract：Aiming at the difficulty in calculating VOCs emissions during oil tank loading and unloading,based on the loss the-ory of oil and gas which is storaged in oil tank,and discrete numerical methods for space and time,the continuity equation,multi-component molar-flow diffusion equation,and momentum equation are simplified,then the numerical model of oil concentra-tion and exhaust volume in loading and unloading can be established.Which can be simplified according to the special boundary conditions,and calculation process is carried out by VB programming language.The calculation results of this model can reduce the error of empirical formulas about 76.1%,which provides an efficient,accurate loss measurement method for oil and gas storage and transportation units.
Keywords：discrete differencial algorithmloading and unloadingVOCsmodelconcentration
Publication Date：2023-11-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 2505-2510,2514 )