کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4986720 | 1454953 | 2017 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of flow velocity on erosion-corrosion of 90-degree horizontal elbow
ترجمه فارسی عنوان
اثر سرعت جریان بر روی فرسایش خوردگی 90 درجه آرنج افقی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
چکیده انگلیسی
Erosion-corrosion is a serious problem in oil and gas gathering and transportation pipeline systems; specifically, the elbow is the weak part. Erosion-corrosion at different locations of a horizontal steel elbow through which a sand slurry was passed at different velocities was studied using weight loss measurement. Erosion samples were characterized using three-dimensional confocal microscopy and computational fluid dynamics was used to characterize the flow patterns and distribution of sand particles in the elbow. The erosion-corrosion rate increased most as the fluid velocity increased from 3.5 to 4.0Â m/s. Increasing particle velocity increased the mechanical effects of the particles and induced secondary flow, leading to differing velocity contours in different cross-sections of the elbow, and thereby differing rates of erosion-corrosion. The maximum rate appeared in the outer part (annular angles Ï=45, 90, and 135 degrees) and bottom of the inner part (annular angles Ï=225, 270, and 315 degrees) of the elbow outlet with an axial angle between 75 and 90 degrees.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wear - Volumes 376â377, Part A, 15 April 2017, Pages 516-525
Journal: Wear - Volumes 376â377, Part A, 15 April 2017, Pages 516-525
نویسندگان
JianGuo Liu, WuLan BaKeDaShi, ZiLi Li, YaZhou Xu, WanRan Ji, Chao Zhang, Gan Cui, RuiYu Zhang,