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MODELING OF THERMAL PERFORMANCE OF LIQUID FLOW WITH NANOSIZED PARTICLES OF PHASE CHANGE MATERIAL IN MICROCHANNELS

l MODELING OF THERMAL PERFORMANCE OF LIQUID FLOW WITH NANOSIZED PARTICLES OF PHASE CHANGE MATERIAL IN MICROCHANNELS. Masters thesis, King Fahd University of Petroleum and Minerals.

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Arabic Abstract

في هذه الدراسه, التصميم العددي قد حدد واستخدم لدراسه تدفق "لامينر " محملا بجزيئات متناهيه الصغر في انابيب دقيقه. تأثير عوامل مختلفه مثل: معدل التدفق, كميه الحراره المعرض لها الجزيئات التناهيه الصغر,و حجم الجزيئات المتناهيه الصغر. نسبه الكفائه و مؤشر الاداء,و رقم "ميرت" حيث استخدموالدراسه الاداء الحراري للجزيئات المتناهيه الصغر. نتيجه لذلك, دراسه مفصله قد عملت لدراسه وفهم تأثير عوامل التشغيل و تركيز حجم الجزيئات المتناهيه الصغر على توليد الانتروبي نتيجه للالانتقال الحراري واحتكاك السائل الناقل للحراراه. اخيرا, دراسه تفصيليه قد عملت لمعرفه اقصى طول للالانابيب الدقيقه عند تغير عوامل التشغيل و حجم الجزيئات المتناهيه الصغر

English Abstract

In the present study, a numerical model is identified and used for investigating laminar flow in a microchannel incorporating suspension of nanosized P.C.M. particles. The effect of different parameters such as mass flow rate, heat flux applied to P.C.M. slurry and particle volume concentrations on the thermal performance is investigated. Effectiveness Ratio, Performance Index and Merit Number are used for the investigation of the thermal performance of P.C.M. slurry. Further a detailed investigation is performed to examine the effects of operating conditions and particle volume concentration on the volumetric entropy generation rate due to heat transfer and fluid friction. Lastly, a detailed study is performed to calculate the length of the microchannel required for obtaining maximum enhancement in heat storage capacity for different operating conditions and particle volume concentrations. The results show a significant improvement in heat storage capacity of slurry due to the addition of P.C.M. particles.



Item Type:Thesis (Masters)
Subjects:Mechanical
Divisions:College Of Engineering Sciences > Mechanical Engineering Dept
Committee Advisor:Al-Dini, S.A.
Committee Members:Yilbas, B.S. and Sahin, A.Z.
ID Code:138436
Deposited By:Awad Alquaity (g200902130)
Deposited On:20 Jun 2011 10:20
Last Modified:20 Jun 2011 10:20

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