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بررسی عددی تأثیر محرک پلاسما بر بهبود عملکرد یک جداساز سیکلونی هوا-ذرات جامد | ||
| نشریه مهندسی مکانیک امیرکبیر | ||
| مقاله 5، دوره 55، شماره 9، آذر 1402، صفحه 1135-1156 اصل مقاله (2.44 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22060/mej.2023.22312.7601 | ||
| نویسندگان | ||
| امیرحسین کریمی؛ نیما امانی فرد* ؛ حسام مویدی | ||
| دانشکده مهندسی مکانیک، دانشگاه گیلان، رشت، ایران | ||
| چکیده | ||
| در مقاله حاضر، تأثیر جریان ثانویه ناشی از محرک پلاسما بر الگوی جریان درون یک سیکلون و عملکرد جداسازی ذرات جامد آن به صورت عددی بررسی شده است. در این مطالعه، تأثیر پارامترهای مؤثر از قبیل ولتاژ اعمالی محرک پلاسما، آرایش محرکهای پلاسما، سرعت جریان ورودی به سیکلون و اندازه ذرات جامد مورد ارزیابی قرار گرفت. نتایج نشان میدهد که عملکرد جداسازی سیکلون در حضور محرک پلاسما در تمامی ذرات با قطرهای مختلف بین 1 الی 2 میلیمتر، نسبت به سیکلون بدون حضور پلاسما افزایش مییابد و مقدار این افزایش بازده در ذرات با قطر بزرگتر (2 میلیمتر)، بیشتر میباشد. نتایج حاکی از آن است که با افزایش ولتاژ اعمالی به محرکهای پلاسما، بیشینه سرعت مماسی درون سیکلون و عملکرد جداسازی آن افزایش مییابد. همچنین آرایش قرارگیری محرکهای پلاسما تأثیر قابلتوجهی بر الگوی جریان و عملکرد جداسازی ذرات درون سیکلون دارد، به نحوی که نصب یکنواخت محرکهای پلاسما در کل ارتفاع بخش استوانهای سیکلون (آرایش نوع یک) موجب بهبود عملکرد جداسازی ذرات نسبت به سایر آرایشها میگردد. همچنین نتایج نشاندهنده این است که استفاده از محرک پلاسما درون سیکلون موجب بهبود 5/26 درصدی عملکرد جداسازی سیکلون نسبت به حالت بدون محرک پلاسما میشود. | ||
| کلیدواژهها | ||
| سیکلون؛ محرک پلاسما؛ مدل فاز گسسته؛ بررسی عددی؛ عملکرد جداسازی ذرات | ||
| عنوان مقاله [English] | ||
| Numerical investigation of the effect of DBD plasma actuator on performance enhancement of an air-solid particle cyclone separator | ||
| نویسندگان [English] | ||
| Amirhossein Karimi؛ Nima Amani fard؛ Hesam Moayedi | ||
| Faculty of Mechanical Engineering, University of Guilan, Iran | ||
| چکیده [English] | ||
| In this paper, the effect of secondary flow induced by the DBD plasma actuators on the flow and separation performance of solid particles in a cyclone is numerically investigated. The effect of the effective parameters such as the applied voltage of the DBD plasma actuator, the arrangement of plasma actuators, the velocity of the incoming flow of the cyclone, and the size of solid particles are evaluated. The results show that the separation performance of the cyclone in the presence of the DBD plasma actuators increases in all particles with different diameters between 1 and 2 mm, compared to the cyclone without the presence of plasma actuator, and the performance enhancement is higher in the particles with a larger diameter (2 mm). The arrangement of plasma actuators has a significant effect on the particle separation performance of the cyclone, and the uniform installation of plasma actuators in the entire height of the cylindrical part of the cyclone (type one arrangement) improves the particle separation performance compared to other arrangements. The results show that the use of the DBD plasma actuators inside the cyclone can increase the cyclone separation performance by 26.5% compared to the cyclone without the DBD plasma actuator. | ||
| کلیدواژهها [English] | ||
| Cyclone, Plasma actuator, DPM, Numerical investigation, Particle separation performance | ||
| مراجع | ||
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