Salgado William L, Dam Roos S F, Barbosa Caroline M, da Silva Ademir X, Salgado César M
Universidade Federal do Rio de Janeiro, PEN/COPPE-UFRJ, 21.941-914, Rio de Janeiro, RJ, Brazil.
Instituto de Engenharia Nuclear, DIRA/IEN/CNEN, 21.945-970, Rio de Janeiro, RJ, Brazil.
Appl Radiat Isot. 2020 Jun;160:109125. doi: 10.1016/j.apradiso.2020.109125. Epub 2020 Mar 9.
This paper presents a methodology to precise identify the interface region, which is formed in the transport of petroleum by-products in polyducts, using gamma densitometry. The simulated geometry is compose for a collimated Cs source and a NaI(Tl) detector to measure the transmitted beam. The modeling was validated experimentally on stratified flow regime using water and oil. The different volume fractions were calculated using the MCNPX code in order to determine the region interface with an accuracy of 1%.
本文提出了一种使用伽马密度计精确识别在多管中运输石油副产品时形成的界面区域的方法。模拟的几何结构由一个准直的铯源和一个碘化钠（铊）探测器组成，用于测量透射束。该模型在分层流态下用水和油进行了实验验证。使用MCNPX代码计算了不同的体积分数，以便以1%的精度确定区域界面。
