Computational investigation of erosion wear in the eco-friendly disposal of the fly ash through 90° horizontal bend of different radius ratios

IF 1 Q4 ENGINEERING, CHEMICAL

Chemical Product and Process Modeling Pub Date : 2022-10-18 DOI:10.1515/cppm-2022-0026

Yatish Kumar Baghel, V. Patel

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引用次数: 0

Abstract

Abstract In the present study, slurry erosion wear was evaluated in 90° horizontal pipe bends of various radius ratios (R/r = 2–10) through a commercial CFD code ANSYS FLUENT. For the suspension of fly ash-water, Euler–Lagrange and two way-coupling methods were employed to predict the slurry erosion wear. The flow through the horizontal bend pipe was simulated using a Standard k–ε turbulence modelling. The computational results were validated with the experimental result of the available literature. Fly ash was taken as the dispersed phase of the solid-liquid combination however water was used as the liquid phase. The fly ash particles size was taken as 150 µm. Various affecting factors, such as velocity (4–10 m/s) and solid concentration (2.5 and 7.5% by volume) of the fly ash, were also studied in this investigation. The erosion rate was maximum in the case of R/r = 4 and minimum for R/r = 10 at all velocities and concentrations. It was also found that the erosion rate increases with the increase in solid concentration and velocity.

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不同半径比90°水平弯曲对粉煤灰生态处理冲蚀磨损的计算研究

摘要在本研究中，通过商业CFD代码ANSYS FLUENT评估了不同半径比（R/R=2–10）的90°水平弯管的泥浆侵蚀磨损。对于粉煤灰水悬浮，采用欧拉-拉格朗日法和双向耦合法对浆体侵蚀磨损进行了预测。使用标准k–ε湍流模型模拟通过水平弯管的流动。计算结果与现有文献的实验结果进行了验证。粉煤灰被用作固液组合的分散相，然而水被用作液相。飞灰颗粒尺寸取150µm。本研究还研究了各种影响因素，如飞灰的速度（4–10 m/s）和固体浓度（2.5和7.5%体积）。在所有速度和浓度下，R/R=4的侵蚀率最大，R/R=10的侵蚀率最小。研究还发现，侵蚀速率随固体浓度和速度的增加而增加。

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来源期刊

Chemical Product and Process Modeling ENGINEERING, CHEMICAL-

CiteScore

2.10

自引率

11.10%

发文量

期刊介绍： Chemical Product and Process Modeling (CPPM) is a quarterly journal that publishes theoretical and applied research on product and process design modeling, simulation and optimization. Thanks to its international editorial board, the journal assembles the best papers from around the world on to cover the gap between product and process. The journal brings together chemical and process engineering researchers, practitioners, and software developers in a new forum for the international modeling and simulation community. Topics: equation oriented and modular simulation optimization technology for process and materials design, new modeling techniques shortcut modeling and design approaches performance of commercial and in-house simulation and optimization tools challenges faced in industrial product and process simulation and optimization computational fluid dynamics environmental process, food and pharmaceutical modeling topics drawn from the substantial areas of overlap between modeling and mathematics applied to chemical products and processes.