مجله مهندسی مکانیک

مجله مهندسی مکانیک

بررسی بهبود انتقال حرارت در جوشش هسته ‌ای با استفاده از سطوح پره‌ دار مستطیلی و ذوزنقه ‌ای

نوع مقاله : علمی پژوهشی

نویسندگان
1 دکتری مهندسی مکانیک، دانشکده مهندسی مکانیک، دانشگاه صنعتی تبریز، تبریز
2 استاد، دانشکده مهندسی مکانیک، دانشگاه صنعتی تبریز، تبریز
چکیده
این پژوهش به بررسی کارایی انتقال حرارت در جوشش هسته ‌ای در مخازن با استفاده از پیکربندی‌ های مختلف سطوح، از جمله سطوح صاف، پره‌دار مستطیلی و ذوزنقه ‌ای پرداخته است. همچنین، تأثیر ارتفاع‌ های مختلف پره‌ ها نیز به منظور ارزیابی جامع‌ تر عملکرد حرارتی این سطوح مورد بررسی قرار گرفته است. با به‌ کارگیری روش حجم سیال (VOF)، این مطالعه به تجزیه و تحلیل فرآیندهای تولید، رشد و جدا شدن حباب ‌ها و همچنین بهبود کلی انتقال حرارت می‌ پردازد. نتایج نشان می‌دهد که سطوح پره ‌دار، به‌ ویژه پره ‌های ذوزنقه ‌ای، به طور چشمگیری انتقال حرارت را نسبت به سطوح صاف افزایش می ‌دهند. سطح دارای پره ‌های ذوزنقه ‌ای تا ۲۱۰ درصد افزایش در شار حرارتی نسبت به سطح صاف را نشان می ­دهد، در حالی که سطح دارای پره‌ های مستطیلی بسته به ارتفاع و فاصله پره‌ ها تا ۱۵۰ درصد افزایش شار حرارتی دارند. این یافته ‌ها به درک بهتر ویژگی ‌های حرارتی اصلاحات مختلف سطح کمک می ‌کند و مبنای بهینه ‌سازی طراحی مبدل ‌های حرارتی برای کاربردهای صنعتی قرار می ‌گیرد.
کلیدواژه‌ها

موضوعات


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دوره 34، شماره 2 - شماره پیاپی 161
خرداد و تیر 1404
صفحه 46-61

  • تاریخ دریافت 21 آبان 1403
  • تاریخ بازنگری 30 آذر 1403
  • تاریخ پذیرش 08 بهمن 1403