Numerical simulation of flow in conventional and grooved heatexchanger by using AL2O3/water nano-fluid
محل انتشار: دومین کنفرانس بین المللی مهندسی مکانیک و هوافضا
سال انتشار: 1396
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 501
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شناسه ملی سند علمی:
MECHAERO02_306
تاریخ نمایه سازی: 13 شهریور 1396
چکیده مقاله:
Development in thermal process makes it necessary to have heat exchanger with higher efficiency. Using nano-fluid as heat transfer fluid can lead to higher efficiencies in heat exchangers. In this study, heat transfer properties of conventional and grooved heat exchangers is numerically investigated. Alumina nano-fluid with 5% concentration in and pure water as heat transfer fluid are studied. Results indicate that grooved heat exchanger has 10% higher efficiency compared with conventional heat exchanger. In addition, the grooved heat exchanger with nano-fluid has 8% improvement in efficiency. Increasing the concentration of nanoparticles up to 8 V/V%, increase in efficiency ofgrooved heat exchangers is about 10.6.
کلیدواژه ها:
نویسندگان
Mehran Shadmehri
Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
Mohammad Alhuyi Nazari
Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
Roghayeh Ghasempour
Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran