Effect of nonionic surfactant additives on the performance of nanofluid in the heat exchanger
Publish place: International Journal of Nano Dimension، Vol: 8، Issue: 1
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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JR_IJND-8-1_003
تاریخ نمایه سازی: 24 تیر 1401
Abstract:
A nanofluid is mixture of nano sized particles and a base fluid. This paper investigates by using laboratory based double pipe heat exchanger model, the performance of nanofluid containing about ۴۸.۴۶nm particle size nanoparticles (ZnO) without or with addition of nonionic surfactant Rokanol K۷ (۵۰۰ppm) into the base fluid double distilled water to prepared three different concentrations ۱.۰%, ۲% and ۳% (v/v) of ZnO-water or ZnO-RK۷. Effects of temperature and concentration of nanoparticles on viscosity and heat transfer coefficient in heat exchanger are investigated. The experimental results shows that the viscosity of nanofluids increased with increasing concentration of fluid whereas decreased with increasing temperature from ۲۰ to ۶۰ºC. However, it has been also observed that heat transfer coefficient increases with the operating temperature and concentration of nanoparticles. The conclusion derived for the study is that overall heat transfer coefficient enhanced with increasing concentration upto ۳% of ZnO-RK۷ as compared to without surfactant nanofluids.
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Authors
Gajanan P Lakhawat
Department of Chemical Engineering, Priyadarshini Institute of Engineering and Technology, Nagpur-۴۴۰ ۰۱۹ (M.S.), India
Rajendra P Ugwekar
Department of Chemical Engineering, Laxminarayan Institute of Technology, Nagpur-۴۴۰ ۰۳۳ (M.S.), India
Sanvidhan G Suke
Department of Biotechnology, Priyadarshini Institute of Engineering and Technology, Nagpur-۴۴۰ ۰۱۹ (M.S.), India
Vivek M Nanoti
Department of Physics, Priyadarshini Institute of Engineering and Technology, Nagpur-۴۴۰ ۰۱۹ (M.S.), India
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