Flow and Heat Transfer Characteristics of Fin Arrays in the Middle Range of Reynolds Number. 2nd Report, Mechanism of Heat Transfer Promotion.

冠南, 喜; 俊蔵, 二神; 良道, 萩原; 健二郎, 鈴木

doi:10.1299/kikaib.59.1324

Cited by 3 publications

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“…Indeed, with this prototype, global heat transfer coefficients reach roughly at most 2000 W m À2 K À1 instead of at least 5000 W m À2 K À1 with a thermal optimized design. The thermal optimization is not addressed in this study but has been widely studied by many authors [9][10][11]. The available literature provides a large amount of thermal-hydraulic data on compact heat exchangers equipped or not with offset strip fins [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…The thermal optimization is not addressed in this study but has been widely studied by many authors [9][10][11]. The available literature provides a large amount of thermal-hydraulic data on compact heat exchangers equipped or not with offset strip fins [10][11][12][13]. A short review of the two technologies selected here is given in this paper.…”

Section: Introductionmentioning

confidence: 99%

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Open loop thermal control of exothermal chemical reactions in multifunctional heat exchangers

Ferrouillat

Tochon

Valle

et al. 2006

International Journal of Heat and Mass Transfer

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This paper presents an experimental study which demonstrates the potentiality of multifunctional heat exchangers (MHE) to carry out exothermal chemical reactions by the local control of the reactive environment temperature. Two highly exothermal chemical reactions with different kinetics (instantaneous and fast) have been investigated. The MHE is found to be very efficient in extracting the heat released by the chemical reactions. Due to its large heat transfer capacity, this process allows to increase considerably inlet reactant concentrations without thermal runaway and thus to enhance both chemical reaction conversion ratio and yield. This study also shows the limitations of the multifunctional heat exchanger for exothermal and instantaneous chemical reactions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Open loop thermal control of exothermal chemical reactions in multifunctional heat exchangers

Ferrouillat

Tochon

Valle

et al. 2006

International Journal of Heat and Mass Transfer

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Combined convection heat transfer in a channel with two ribs attached to one wall

Matsubara

Nakabe

Suzuki

et al. 1999

Heat Trans. Asian Res.

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Two‐dimensional calculations were performed for combined convection heat transfer in a channel with two ribs attached to one wall, following a previous study on the forced convection case without buoyancy. The flow is heated from the surfaces of both ribs and the present study dealt with the two cases of buoyancy‐assisted flow and buoyancy‐opposing flow. The effect of Reynolds number, ReL, and modified Richardson number, Ri*, was examined keeping the space between ribs, σ, and blockage ratio, τ, constant (σ = 3.0, τ = 0.5). Increasing the magnitude of buoyancy, unsteady flows predicted by the present calculations are stabilized in both cases. Serious deterioration of Nusselt number on the second rib suddenly occurs in a certain range of Ri* due to the flow stabilization. This is because flow unsteadiness plays an important role for heat transfer enhancement as was described in a previous study. However, in buoyancy‐assisted flow, a similar deterioration of Nusselt number also appears on the second rib even if flow remains steady. This is caused by the disappearance of a strong rotating flow which exists in the cavity between both ribs and keeps the fluid in the cavity cooler. © 1999 Scripta Technica, Heat Trans Asian Res, 28(5): 379–394, 1999

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Heat transfer—a review of 1993 literature

Eckert

Goldstein

Ibele

et al. 1996

International Journal of Heat and Mass Transfer

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Flow and Heat Transfer Characteristics of Fin Arrays in the Middle Range of Reynolds Number. 2nd Report, Mechanism of Heat Transfer Promotion.

Cited by 3 publications

References 0 publications

Open loop thermal control of exothermal chemical reactions in multifunctional heat exchangers

Open loop thermal control of exothermal chemical reactions in multifunctional heat exchangers

Combined convection heat transfer in a channel with two ribs attached to one wall

Heat transfer—a review of 1993 literature

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