|
|
Transport Phenomena in Nano and Micro Scales، جلد ۲، شماره ۲، صفحات ۸۶-۹۹
|
|
|
| عنوان فارسی |
|
|
| چکیده فارسی مقاله |
|
|
| کلیدواژه‌های فارسی مقاله |
|
|
| عنوان انگلیسی |
The Impact of Nanoparticles on Forced Convection in a Serpentine Microchannel |
|
| چکیده انگلیسی مقاله |
In this study heat transfer and fluid flow characteristics of Al2O3/water nanofluid in a serpentine microchannel is numerically investigated. A constant heat flux is applied on microchannel wall and a single-phase model has been adopted using temperature-dependent properties. The effects of pertinent factors such as Reynolds number (Re=10, 20, 50 and 100), particle volume fraction (𝛷=0(distilled water), 2, 4 and 8%) and heat flux (q=5, 10 and 15 W/cm2), on the velocity and temperature field, average heat transfer coefficient (havg), pressure drop (Δp), and thermal-hydraulic performance (η) are evaluated. The results show that the use of nanofluid causes increased velocity gradient near the wall which is more remarkable for φ = 8%. The results also reveal that the heat transfer rate increases as nanoparticle volume fraction and Reynold number increase and a maximum value 51% in the average heat transfer coefficient is detected among all the considered cases when compared to basefluid (i.e., water). It is found that a higher heat flux leads to heat transfer enhancement and reduction in pressure drop. Finally, thermal-hydraulic performance is calculated and it is seen that the best performance occurs for Re =10 and φ = 4%. |
|
| کلیدواژه‌های انگلیسی مقاله |
Al2O3/water,Viscosity,Thermal Conductivity,Nanofluid |
|
| نویسندگان مقاله |
p رحیم مشایی | rahim mashaei
mechanical engineering department, iran university of science and technology iust , tehran, i.r. iran
سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)
سید محمد حسینعلی پور | s m
mechanical engineering department, iran university of science and technology iust , tehran, i.r. iran
سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)
m el جواد muslmani | el jawad muslmani
mechanical engineering department, iran university of science and technology iust , tehran, i.r. iran
سازمان اصلی تایید شده: دانشگاه علم و صنعت ایران (Iran university of science and technology)
|
|
| نشانی اینترنتی |
http://tpnms.usb.ac.ir/article_1603_faa54a5a0333a76d9132b356948c615f.pdf |
| فایل مقاله |
فایلی برای مقاله ذخیره نشده است |
| کد مقاله (doi) |
|
| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
|
| نوع مقاله منتشر شده |
|
|
|
|
برگشت به:
صفحه اول پایگاه |
نسخه مرتبط |
نشریه مرتبط |
فهرست نشریات
|