NUMERICAL INVESTIGATION OF FERROFLUID FLOW AND HEAT TRANSFER CHARACTERISTICS THROUGH A DOUBLE PIPE HEAT EXCHANGER

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SHAKIBA ALI; GORJI MOFID

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Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:2 Page(s): 41-52

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Title

NUMERICAL INVESTIGATION OF FERROFLUID FLOW AND HEAT TRANSFER CHARACTERISTICS THROUGH A DOUBLE PIPE HEAT EXCHANGER

Author(s)

SHAKIBA ALI | GORJI MOFID | Issue Writer Certificate

Keywords

FERROHYDRODYNAMICSQ1

FERROFLUIDQ2

DOUBLE PIPE HEAT EXCHANGERQ2

MAGNETIC FIELDQ1

Abstract

This study attempts to numerically investigate the hydro-thermal characteristics of a FERROFLUID (water and 4 vol % Fe3O4) in a counter-current horizontal DOUBLE PIPE HEAT EXCHANGER, which is exposed to a non-uniform transverse MAGNETIC FIELD with different intensities. The MAGNETIC FIELD is generated by an electric current going through a wire located parallel to the inner tube and between two pipes. The single phase model and the control volume technique have been used to study the flow. The effects of MAGNETIC FIELD have been added to momentum equation by applying C++ codes in Ansys Fluent 14. The results show that applying this kind of MAGNETIC FIELD causes kelvin force to be produced perpendicular to the FERROFLUID flow, changing axial velocity profile and creating a pair of vortices which leads to an increase in Nusselt number, friction factor and pressure drop. Comparing the enhancement percentage of Nusselt number, friction factor and pressure drop demonstrates that the optimum value of magnetic number for Reff=50 is between Mn=1.33×106 and Mn=2.37×106. So applying non-uniform transverse MAGNETIC FIELD can control the flow of FERROFLUID and improve heat transfer process of DOUBLE PIPE HEAT EXCHANGER.

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APA: Copy

SHAKIBA, ALI, & GORJI, MOFID. (2015). NUMERICAL INVESTIGATION OF FERROFLUID FLOW AND HEAT TRANSFER CHARACTERISTICS THROUGH A DOUBLE PIPE HEAT EXCHANGER. MODARES MECHANICAL ENGINEERING, 15(2), 41-52. SID. https://sid.ir/paper/179734/en

Vancouver: Copy

SHAKIBA ALI, GORJI MOFID. NUMERICAL INVESTIGATION OF FERROFLUID FLOW AND HEAT TRANSFER CHARACTERISTICS THROUGH A DOUBLE PIPE HEAT EXCHANGER. MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(2):41-52. Available from: https://sid.ir/paper/179734/en

IEEE: Copy

ALI SHAKIBA, and MOFID GORJI, “NUMERICAL INVESTIGATION OF FERROFLUID FLOW AND HEAT TRANSFER CHARACTERISTICS THROUGH A DOUBLE PIPE HEAT EXCHANGER,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 2, pp. 41–52, 2015, [Online]. Available: https://sid.ir/paper/179734/en

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