Feasibility study of electromagnetic driven dream pipe

Furukawa, Masao; Morishita, Mimpei; Yokoyama, Shuichi

doi:10.1016/j.ijheatmasstransfer.2014.11.072

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…Moreover, in this case, as the oscillation frequency varies from 1.03 Hz to 2.52 Hz, a high rate of heat transfer is achieved even at low frequency. This result is in good agreement with Masao Furukawa et al [21].…”

Section: Effect Of the Wall Thermal Conductivitysupporting

confidence: 92%

“…The electromagnetic version of dream pipe is becoming a topic of current interest owing to its tremendous applications. Masao Furukawa et al [21] examined the feasibility of an electromagnetic driven dream pipe by the analyses from both thermal and electrical points of view and showed that this novel heat transfer device may possibly replace the existing mechanically-driven dream pipes. Heat transfer studies with magnetohydrodynamic liquid metal flows are of great interest in the conceptual design of fusion power reactor [22] as liquid metals have incomparable heat transfer characteristics such as high thermal conductivity, high melting point and boiling point which eliminates the probability of local boiling [23].…”

Section: Introductionmentioning

confidence: 99%

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Study of Conjugate Heat Transfer in Electromagnetic Liquid Metal Dream Pipe

Puvaneswari

Karthikeyan

2017

Archive of Mechanical Engineering

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The combined effect of conjugation, external magnetic field and oscillation on the enhancement of heat transfer in the laminar flow of liquid metals between parallel plate channels is analyzed. In order to make our results useful to the design engineers, we have considered here only the wall materials that are widely employed in liquid metal heat exchangers. Indeed, all the results obtained through this mathematical investigation are in excellent agreement with the available experimental results. The effective thermal diffusivity κ e is increased by 3 · 10 6 times due to oscillation and that the heat flux as high as 1.5 · 10 10 (W/m 2 ) can be achieved. Based on our investigation, we have recommended the best choice of liquid metal heat carrier, wall material and its optimum thickness along with the optimum value of the frequency to maximize the heat transfer rate. At the optimum frequency, by choosing a wall of high thermal conductivity and optimum thickness, an increase of 19.98% in κ e can be achieved. Our results are directly relevant to the design of a heat transfer device known as electromagnetic dream pipe which is a very recent development.

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Section: Effect Of the Wall Thermal Conductivitysupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Study of Conjugate Heat Transfer in Electromagnetic Liquid Metal Dream Pipe

Puvaneswari

Karthikeyan

2017

Archive of Mechanical Engineering

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Mathematical model of parallel-plate-channeled electromagnetic-driven pulsating dream pipe for rapid heat removal

Furukawa

2017

International Journal of Heat and Mass Transfer

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Theoretical Realizability of Dream-Pipe-Like Oscillating/Pulsating Heat Pipe

Furukawa

2017

Journal of Heat Transfer

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The state of the art of thermally self-excited oscillatory heat pipe technology is briefly mentioned to emphasize that there exists no oscillating/pulsating heat pipe (OHP/PHP) suited to long-distance heat transport. Responding to such conditions, this study actively proposes a newly devised conceptually novel type of OHP/PHP. In that heat pipe, the adiabatic section works as it were the dream pipe invented by Kurzweg. This striking quality of the proposed new-style OHP/PHP produces high possibilities of long-distance heat transport. To support such optimistic views, an originally planned mathematical model is introduced for feasibility studies. Hydraulic considerations have first been done to understand what conditions are required for sustaining bubble-train flows in a capillary tube of interest. Theoretical analysis has then been made to solve the momentum and energy equations governing the flow velocity and temperature fields in the adiabatic section. The obtained analytical solutions are arranged to give algebraic expressions of the effective thermal diffusivity, the performance index combined with the tidal displacement, and the required electric power. Computed results of those three are displayed in the figures to demonstrate the realizability of that novel OHP.

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Feasibility study of electromagnetic driven dream pipe

Cited by 3 publications

References 27 publications

Study of Conjugate Heat Transfer in Electromagnetic Liquid Metal Dream Pipe

Study of Conjugate Heat Transfer in Electromagnetic Liquid Metal Dream Pipe

Mathematical model of parallel-plate-channeled electromagnetic-driven pulsating dream pipe for rapid heat removal

Theoretical Realizability of Dream-Pipe-Like Oscillating/Pulsating Heat Pipe

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