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Register a new userExperimental Study for Determination the temperature distribution of the roughness surfaces under natural convection
دراسة تجريبية لتحديد التوزيع الحراري لسطح مخشن صناعياً بالحمل الطبيعي
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Aِl-Baath University ورقة بحثية
Publication date
2016
fields
Mechanical Power Engineering
and research's language is
العربية
Created by
Shamra Editor
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هذا البحث يهدف بشكل أساسي لتحديد التوزيع الحراري بالحمل الطبيعي تجريبياً من ثلاثة سطوح مخشّنه صناعياً بمقاطع تخشينية منتظمة مختلفة (مقطع مثلثي, مقطع شبه منحرف, مقطع نصف دائري), و مقارنة ذلك مع سطح أملس غير مخشّن و بمساحة كل سطح تبادل.
This study aims mainly to determine the temperature distribution heat transfer enhancement under natural convection experimental, from three surfaces with industrial roughness created by a special machine (roughness surfaces) with triangular, trapezoidal, spherical configuration compared to equivalent smooth surface. With cross-sectional area.
Artificial intelligence review:
Research summary
تتناول هذه الدراسة التجريبية تأثير الخشونة الصناعية على سطوح التبادل الحراري تحت ظروف الحمل الطبيعي. يهدف البحث إلى تحديد التوزيع الحراري على طول ثلاثة أنواع من السطوح المخشنة (مثلثي، شبه منحرف، نصف دائري) ومقارنتها بسطح أملس غير مخشن. تم تصنيع السطوح باستخدام آلات خاصة وتم اختبارها عند درجات حرارة مختلفة للمنبع الحار. أظهرت النتائج أن السطوح المخشنة تعطي هبوطًا حراريًا أعلى مقارنة بالسطح الأملس، وأن السطح المخشن بمقطع شبه منحرف أعطى أفضل النتائج من حيث التوزيع الحراري. تم تحليل النتائج ومناقشتها، وتم تقديم توصيات للدراسات المستقبلية للتحقق من النتائج باستخدام النمذجة العددية وتوسيع الدراسة لتشمل أنواع مختلفة من المعادن.
Critical review
دراسة نقدية: تقدم الدراسة مساهمة هامة في مجال تحسين انتقال الحرارة باستخدام الخشونة الصناعية، إلا أن هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الممكن توسيع نطاق الدراسة ليشمل أنواعًا أخرى من الخشونة السطحية أو استخدام مواد مختلفة للسطوح. ثانيًا، الاعتماد على التجارب فقط دون استخدام النمذجة العددية قد يحد من دقة النتائج وتعميمها. أخيرًا، كان من المفيد تضمين تحليل اقتصادي لتكلفة تصنيع السطوح المخشنة مقارنة بالفوائد الحرارية المحققة.
Questions related to the research
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ما هو الهدف الرئيسي من الدراسة؟
الهدف الرئيسي من الدراسة هو تحديد التوزيع الحراري على طول سطوح التبادل الحراري المخشنة صناعياً بمقاطع مختلفة ومقارنتها بسطح أملس غير مخشن.
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ما هي أنواع المقاطع المخشنة التي تم دراستها؟
تم دراسة ثلاثة أنواع من المقاطع المخشنة: مقطع مثلثي، مقطع شبه منحرف، ومقطع نصف دائري.
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ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟
أظهرت النتائج أن السطوح المخشنة تعطي هبوطًا حراريًا أعلى مقارنة بالسطح الأملس، وأن السطح المخشن بمقطع شبه منحرف أعطى أفضل النتائج من حيث التوزيع الحراري.
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ما هي التوصيات التي قدمتها الدراسة للدراسات المستقبلية؟
توصي الدراسة بالتحقق من النتائج باستخدام النمذجة العددية، وتوسيع الدراسة لتشمل أنواع مختلفة من المعادن، واستخدام نظام تحصيل معلومات موصول عن طريق الحاسب للحصول على نتائج بوثوقية أكبر.
References used
Al-Essa, A.H.; AL-Hussien, F.M.S., 2004- The effect of orientation of square perforations on the heat transfer enhancement from a fin subjected to natural convection. Heat and mass transfer vol 40, p.509-515
Al-Essa, A. H., 2000- Enhancement of thermal performance of fins subjected to natural convection through body perforation. Ph.D. thesis, Department of Mechanical Engineering, University of Baghdad, Iraq and University of science and technology of Jordan
AL-Essa, A. H., 2006- One Dimensional Finite Element Solution of the Rectangular Fin with Rectangular Perforations. wseas transactions on heat and mass transfer ,Issue 10, Volume 1, p762-768
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