بررسی عددی تأثیر نسبت قطرهای ردیاب گردابه بر عملکرد سیکلون

نوع مقاله : مقاله علمی

نویسندگان
قدرت قصابی 1
محمد حسین یوسفی 2
1 استادیار، دانشکده مهندسی، دانشگاه بزرگمهر قائنات، قائن، ایران
2 کارشناس، دانشکده مهندسی، دانشگاه بزرگمهر قائنات، قائن، ایران
10.22034/stme.2025.532379.1140
چکیده
در این مطالعه، تأثیر نسبت قطرهای ردیاب گردابه بر کارآیی جداسازی ذرات سیکلون و افت فشار آن، به‌صورت عددی موردبررسی قرار گرفته است. شبیه‌سازی عددی با استفاده از نرم‌افزار انسیس فلوئنت ۲۱ صورت گرفته است. نسبت قطرهای 25/0، 5/0، 1، 2 و 4 برای ردیاب گرداب مطالعه شده است. در این بررسی سیال هوا، سرعت جریان ورودی 1 متر بر ثانیه و قطر ذرات 10 میکرومتر لحاظ شده است. نتایج این شبیه‌سازی نشان می‌دهد، با افزایش نسبت قطر ردیاب گردابه از 25/0 به 5/0، افت فشار کاهش قابل‌توجهی می‌یابد و با افزایش بیشتر نسبت قطر ردیاب گردابه، افت فشار در سیکلون تقریباً ثابت می­ماند. همچنین نتایج این بررسی نشان داد که سیکلون با نسبت قطر 5/0، دارای کارآیی ۱۰۰ درصد و سیکلون با نسبت قطر ۴، قادر به جداسازی ذرات نمی‌باشد. علاوه بر آن نتیجه گرفته شد که سیکلون دارای قطرهای برابر برای ردیاب گردابه، عملکرد بهتری را نسبت به سیکلون‌های دارای سایر مقادیر نسبت قطر ردیاب گردابه دارا می‌باشد.
کلیدواژه‌ها
کارآیی جداسازی ذرات سیکلون
افت فشار
نسبت قطر های ردیاب گردابه
انسیس فلوئنت
موضوعات

عنوان مقاله English

Numerical Investigation of the Effect of Vortex Finder Diameter Ratio on Cyclone Separator Performance

نویسندگان English

GHODRAT GHASSABI 1
Mohammadhosein Yoosefi 2
1 Assistant professor, Department of Mechanical Engineering, Bozorgmehr University of Qaenat, Qaen, Iran
2 B.Sc, Department of Mechanical Engineering, Bozorgmehr University of Qaenat, Qaen, Iran
چکیده English

In this study, the effect of the vortex finder diameter ratio on the particle separation efficiency and pressure drop of a cyclone separator was numerically investigated. Computational fluid dynamics (CFD) simulations were performed using ANSYS Fluent 21. Five vortex finder diameter ratios (D₂/D₁ = 0.25, 0.5, 1, 2, and 4) were examined to evaluate their influence on cyclone performance. Air was considered as the continuous phase with an inlet velocity of 1 m/s, while solid particles with a diameter of 10 μm were used as the dispersed phase. The simulation results showed that increasing the vortex finder diameter ratio from 0.25 to 0.5 significantly reduced the pressure drop, whereas further increases in the diameter ratio resulted in only minor changes in pressure drop. The cyclone with a diameter ratio of 0.5 achieved a particle separation efficiency of 100%, while the cyclone with a diameter ratio of 4 was unable to separate the particles effectively. Furthermore, considering both separation efficiency and pressure drop, the cyclone equipped with a cylindrical vortex finder (D₂/D₁ = 1) exhibited the most favorable overall performance compared with the other investigated diameter ratios. These findings demonstrate that the vortex finder diameter ratio is a critical design parameter and that selecting an appropriate geometry can significantly improve cyclone performance while reducing energy losses.

کلیدواژه‌ها English

Particle Separation Efficiency
Pressure Drop
Vortex Finder Diameter Ratio
ANSYS Fluent
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  • تاریخ دریافت 12 تیر 1404
  • تاریخ بازنگری 02 دی 1404
  • تاریخ پذیرش 03 دی 1404
  • تاریخ اولین انتشار 03 دی 1404
  • تاریخ انتشار 01 مرداد 1405