Effect of Using MgO-Oil Nanofluid on the Performance of a Counter-Flow Double Pipe Heat Exchanger

Abstract:

In the present study, heat transfer characteristics of MgO-oil based nanofluid in a miniature counter-flow double-pipe heat exchanger are investigated experimentally and numerically. The nanofluid is a mixture of corn oil as a base fluid and MgO particles in nanorange. The heat exchanger is fabricated from 316 stainless steel with length 500 mm. Cold water flows in the annulus side, and the nanofluid is utilized as the hot medium in the inner tube. ANSYS FLUENT 17,0 commercial software was employed for numerical investigation. The results obtained from using nanofluids are compared with the pure oil base fluid as a hot medium. Effects of inlet flow rate of hot nanofluids and concentration of nanoparticles are considered. It is observed that the average heat transfer rates for nanofluids are higher than those for pure corn oil. The improvement of both MgO concentration and inlet flow rates of nanofluid has a positive impact on the overall heat transfer coefficient and heat transfer rate. In contrast, the pumping power augments as well as the pressure drop increases.

• Periodical: Key Engineering Materials (Volume 801)
• Pages: 193-198
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.801.193
• Online since: May 2019
• Authors: Abdallah Yousef Mohammed Ali*, Ahmed Hassan El-Shazly, Marwa F. El Kady, Hesham Ibrahim Elqady, Mohamed R. El-Marghany
• Keywords: Computational Fluid Dynamics, Double Pipe Heat Exchanger, Laminar Flow, MgO-Oil Nanofluid

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