مشخصات پژوهش

عنوان	The Effect of Nanoparticles on Thermal Efficiency of Double Tube Heat Exchangers in Turbulent Flow
نوع پژوهش	مقاله چاپ‌شده
کلیدواژه‌ها	Nanoparticles , Thermal Efficiency , Double Tube Heat Exchangers , Turbulent Flow
چکیده	This paper refers to the Overall Heat Transfer Coefficient of Nano Fluids (OHTCNF) in heat exchangers and the relevant effective parameters. An improvement in Heat Transfer (HT) and OHTCNF containing nanoaluminum oxide with ca. 20 nm particle size and particular volume fraction in the range of 0.001-0.002 has been reported. The effects of temperature and concentration of nanoparticles on HT variation as well as Overall Heat Transfer Coefficient (OHTC) in a countercurrent double tube heat exchanger with turbulent flow have been studied. The experimental results show a remarkable 8%–10% rise in the mean HT and the OHTC. Accordingly, with an increase in the processing temperature and/or particle concentration the OHTC was observed to increase.
پژوهشگران	فاطمه آشوری (نفر پنجم)، عبدالرضا مقدسی (نفر چهارم)، بهرام کیوانی (نفر سوم)، حیدر مداح (نفر دوم)، رضا آقایاری (نفر اول)