细粉气力输送过程中弯道曲率和再加速区的压降建模

IF 2.3 4区工程技术 Q3 ENGINEERING, CHEMICAL

Particulate Science and Technology Pub Date : 2023-09-11 DOI:10.1080/02726351.2023.2255865

Atul Sharma, Rachit Poddar, Gourav Saluja, S. S. Mallick

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引用次数: 0

摘要

本文介绍了正在进行的研究结果，旨在模拟弯道压力降在细粉的气力输送过程中。根据三种不同弯道曲率半径、两种不同弯道直径和两种不同弯道位置输送粉煤灰和两种水泥的试验结果，分别建立了不同压降分量下的弯道损失半经验关系。利用该模型对固相加载比为51 ~ 170(非常致密相)时的弯曲损失进行了预测。该模型具有较好的预测精度，高固载比和低固载比的相对误差百分比分别小于12.2%和19.6%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Modeling pressure drop in curvature and reacceleration zones in bends during pneumatic conveying of fine powders

This paper presents the results of ongoing research aimed at modeling the pressure drop in bends during pneumatic conveying of fine powders. Based on the test results of conveying fly ash and two grades of cement through three different radii of curvature of the bends, two different bend diameters, and two different locations of the test bend, a semi-empirical relationship was developed for bend loss with various pressure drop components modeled separately. The newly developed model was used to predict the bend loss for a solid loading ratio in the range of 51–170 (very dense phase). The proposed model exhibited a satisfactory level of prediction accuracy, with relative error percentages of less than 12.2% and 19.6% for the high and low solids loading ratios, respectively.

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来源期刊

Particulate Science and Technology 工程技术-工程：化工

CiteScore

4.40

自引率

4.00%

发文量

审稿时长

12 months

期刊介绍： Particulate Science and Technology, an interdisciplinary journal, publishes papers on both fundamental and applied science and technology related to particles and particle systems in size scales from nanometers to millimeters. The journal''s primary focus is to report emerging technologies and advances in different fields of engineering, energy, biomaterials, and pharmaceutical science involving particles, and to bring institutional researchers closer to professionals in industries. Particulate Science and Technology invites articles reporting original contributions and review papers, in particular critical reviews, that are relevant and timely to the emerging and growing fields of particle and powder technology.