Numerical analysis of laminar flow heat transfer of nanofluids in a flattened tube |
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| Affiliation: | 1. Mechanical Engineering Department, College of Engineering, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia;2. Department of Environmental Engineering, College of Engineering, Komar University of Science and Technology (KUST), King Mahmud Circle, Sulaymani-Kurdistan Region, Iraq;3. FABE, Limkokwing University of Creative Technology, Jalan Teknokrat 1/1, 63000 Cyberjaya, Selangor, Malaysia;4. Department of Mechanical Engineering, University of Anbar, 31001 Anbar, Iraq;5. Shanghai Key Lab of Vehicle Aerodynamics and Vehicle Thermal Management Systems, 4800 Cao An Rd., Jiading, Shanghai 201804, China;1. Department of Chemical Engineering, Thapar Institute of Engineering and Technology, Patiala, 147004, Punjab, India;2. Department of Chemical Engineering, C.V. Raman College of Engineering, Bhubaneswar, 752054, Odisha, India |
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| Abstract: | In this work, a three-dimensional analysis is used to study the heat transfer performance of nanofluid flows through a flattened tube in a laminar flow regime and constant heat flux boundary condition. CuO nanoparticles dispersed in ethylene glycol with particle volume concentrations ranging between 0 and 4 vol.% were used as working fluids for simulating the heat transfer of nanofluids. Effects of some important parameters such as nanoparticle volume concentration, particles Brownian motions, and Reynolds number on heat transfer coefficient have been determined and discussed in details. Results have shown that the heat transfer coefficient increases with increase in the volume concentration level of the nanoparticle, Brownian motion and the Reynolds number. Numerical results have been validated by comparison of simulations with those available in the literature. |
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