این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Energy Equipment and Systems، جلد ۱۰، شماره ۲، صفحات ۱۲۳-۱۳۶
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Experimental investigation of heat transfer, pressure drop, and efficiency of TiO2/Oil nanofluid in alternating flattened tubes
چکیده انگلیسی مقاله In this study, the analysis of experimental results is used to investigate heat transfer and pressure drop characteristics of Titanium Oxide nanoparticles in an Alternating Flattened Tube. The impact of nanoparticles has not been studied before on Alternating Flattened tubes heat transfer characteristics. Experiments were conducted on 3 different AF tubes with heat transfer oil as base fluid with TiO2 nanoparticles volumetric concentrations of 1% and 2% in 400 to1800 Re range. Our experiments show increasing in flattening leads to a heat transfer increase in AF tubes by a factor of 1.58, 2.08, and 2.21 compared to circular pipes. Pressure drop also increases by 1.08, 1.19 and 1.25 times. The addition of TiO2 nanoparticles enhances heat transfer and pressure drop as well. We also found higher nanoparticle concentration provides more improvement. The most flattened tube with 2% particle concentration shows 2.85 and 1.32 times increase in heat transfer and pressure drop compared to the circular tube respectively. An efficiency parameter is used to study heat transfer and pressure drop simultaneously. Our analysis shows that the efficiency of the alternating flattened tube is higher than the circular tube and increases with the increase in flattening and nanoparticles concentration.  The efficiency of alternating flattened tubes reads 1.26, 1.62 and 1.76 times that of a circular tube. The efficiency of nanofluid with a volume concentration of 2% in alternating flattened tubes is 1.76, 2.01 and 2.15 times the base fluid in a circular tube. This experiment concludes the presence of nanoparticles improves overall heat exchange performance at the alternating flattened tubes.
کلیدواژه‌های انگلیسی مقاله Alternating Flattened Tube,nanofluid,Heat Transfer,Pressure drop,Eefficiency
نویسندگان مقاله Ahmadreza Sajadi |
Faculty of Engineering, Shahrekord University, Shahrekord, Iran

Sasan Talebi |
Faculty of Engineering, Shahrekord University, Shahrekord, Iran

نشانی اینترنتی https://www.energyequipsys.com/article_253058_bda465ba4c2a7c36ea2a739ed34efb49.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