Numerical investigation of pressure drop reduction without surrendering heat transfer enhancement in partially porous channel

Zehforoosh, A.; Hossainpour, Siamak

doi:10.1016/j.ijthermalsci.2010.05.016

Cited by 36 publications

(12 citation statements)

References 19 publications

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“…Hence using metal foam in liquid cooling had attracted much attention. Typical liquid cooling using metal foams were conducted by Hung et al [6], Boomsma et al [7,8], Wan et al [9], Chein et al [10], Singh et al [11], Zehforoosh and Hossainpour [12], and Jeng et al [13]. These studies examined the fluid flow and heat transfer characteristics of a porous heat sink either numerically or numerically.…”

Section: Introductionmentioning

confidence: 99%

Performance improvement of high power liquid-cooled heat sink via non-uniform metal foam arrangement

Chen

Wang

2015

Applied Thermal Engineering

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Section: Introductionmentioning

confidence: 99%

Performance improvement of high power liquid-cooled heat sink via non-uniform metal foam arrangement

Chen

Wang

2015

Applied Thermal Engineering

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“…Eq. (19) shows the detailed correlation among these impact factors. From this equation, we can see that only increasing the thermal conductivity of the porous medium will not consequentially increase the overall performance of the ETfHE.…”

Section: Discussionmentioning

confidence: 99%

“…Nield and Kuznetsov [18] studied forced convection in a channel with asymmetric heat, permeability, and thermal conductivity. Zehforoosh and Hossainpour [19] conducted a numerical investigation of steady, laminar forced convection in a partially porous channel. The effects of different parameters such as Darcy numbers, arrangements of dissimilar blocks, Forchheimer coefficient, Re number, thermal conductivity, and Prandtl number were investigated and the velocity and temperature fields are presented and discussed.…”

Section: Introductionmentioning

confidence: 99%

Thermal and hydraulic performances of a tube filled with various thermal conductivities of porous media

Peng

Ming

Tao

2015

International Journal of Heat and Mass Transfer

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“…et al [4]. Zehforoosh and Hossainpour [5] investigated numerically the laminar forced convection in a partially porous channel using four dissimilar porous blocks attached to strip heat sources at the bottom wall. The fluid flow and heat transfer characteristics of a porous heat sink situated in a rectangular channel with bypass spaces was carried out experimentally by Jeng et al [6].…”

Section: Introductionmentioning

confidence: 99%

Design of Porous-Microchannel Heat Sinks with Different Porous Configurations

Hung¹,

Huang²,

Yan³

2015

IJMMM

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Abstract-The models of the porous-microchannel heat sinks (porous-MCHSs) with different porous configurations are established in this work. Thermal performances of the porousMCHSs are investigated with the Reynolds number ranging from 45 to 1350. The results indicate that, compared with the results of non-porous MCHS, the thermal performances can be enhanced by using the porous configurations and increase with an increase in the Reynolds number, except for the case with a lower Reynolds number. Both the sandwich and the trapezoidal distribution designs have the best heat transfer efficacy, cooling performance and convective performance. In particular, the thermal performance for rectangular, outlet enlargement, thin rectangular, or block distribution design is not necessarily better than that without porous medium under lower pumping power. Finally, the sandwich distribution design is the best design of the porous-MCHSs by considering the thermal performance along with the pressure drop. Index Terms-Porous-microchannel, heat sink (porous-MCHS). I. INTRODUCTIONThe 3-D numerical model to investigate the effects of the porous configuration designs on the thermal performance of the porous-microchannel heat sinks (porous-MCHSs, as shown in Fig. 1) were proposed in this paper. The porousmicrochannel heat sinks make use of the insertion of a porous metallic medium into the microchannel to raise both the surface contact area-to-volume ratio with the coolant and the local velocity mixing of the coolant. Higher contact surface area-to-volume ratio and velocity mixing of the fluid provide a better convective heat transfer effect [1], [2]. It is known [3]-[10] that the heat transfer performance of porousMCHSs can be improved if the configurations of porosity are properly designed. The heat transfer improvement makes the porous-MCHSs possible of implementing a task of micro-scale electronics cooling [1], [2], [10].Many efforts have been devoted to improve the cooling performance of porous channels [1]- [10]. A sintered porous heat sink for the cooling of high-powered compact microprocessors was examined experimentally by Singh et al. [1]. The forced convection in porous rectangular ducts was performed by Calmidi and Mahajan [3] and Haji-Sheikh Manuscript received April 14, 2015; revised July 20, 2015. This work was supported in part by the National Science Council, R. O. C.Tu-Chieh Hung is with the Department of Mechanical Engineering, R.O.C Military Academy, Kaohsiung 83059, Taiwan (e-mail: christ.rich@msa.hinet.net).Yu-Xian Huang is with Delta Electronics, Tainan County 74144, Taiwan (e-mail: frank-303@yahoo.com.tw).Wei-Mon Yan is with the Department of Energy and Refrigerating AirConditioning Engineering, National Taipei Universi, Taiwan. et al. [4]. Zehforoosh and Hossainpour [5] investigated numerically the laminar forced convection in a partially porous channel using four dissimilar porous blocks attached to strip heat sources at the bottom wall. The fluid flow and heat transfer characteristics of a porous heat sink...

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Numerical investigation of pressure drop reduction without surrendering heat transfer enhancement in partially porous channel

Cited by 36 publications

References 19 publications

Performance improvement of high power liquid-cooled heat sink via non-uniform metal foam arrangement

Performance improvement of high power liquid-cooled heat sink via non-uniform metal foam arrangement

Thermal and hydraulic performances of a tube filled with various thermal conductivities of porous media

Design of Porous-Microchannel Heat Sinks with Different Porous Configurations

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