Sintered porous medium heat sink for cooling of high-power mini-devices

Hetsroni, G.; Gurevich, Maxim; Rozenblit, R.

doi:10.1016/j.ijheatfluidflow.2005.08.005

Cited by 148 publications

(42 citation statements)

References 14 publications

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“…An increase of 3 to 6 times the Nusselt number compared to a non-porous channel has been reported. Hetsroni et al [55] investigated the heat transfer and pressure drop in a rectangular channel with a porous material in the bed by laboratory method. In this experiment, low porosity was investigated for heat dissipation in small-sized devices with high power, and the results showed that the wells would be very efficient, although the heat transfer increased as the heat pump increased.…”

Section: International Journal Of Advanced Engineering Management Anmentioning

confidence: 99%

Using Porous Media to Enhancement of Heat Transfer in Heat Exchangers

Rashidian¹,

Tavakoli²

2017

IJAEMS

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Section: International Journal Of Advanced Engineering Management Anmentioning

confidence: 99%

Using Porous Media to Enhancement of Heat Transfer in Heat Exchangers

Rashidian¹,

Tavakoli²

2017

IJAEMS

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“…Sheng-Chung Tzeng et al [2], concluded that for a constant flow-rate, as the porosity decrease, contact surface of the fluid increases, causes a higher heattransfer rate between the fluid and the solid phases. Different porous material with different porosity have been studied for many applications like roof surface temperature moderation [3], cooling of high-power mini-devices [4], enhancing heat transfer rate in Heat exchangers [5,6], cooling of high-powered microprocessors [7]. Bo Yan et.…”

Section: IImentioning

confidence: 99%

Investigation of Heat Transfer Rate through Porous Material

Vanjari¹

2017

IJRASET

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The present experimental work is done to investigate forced convective heat transfer rate through porous material. For this study stainless steel ball of diameter 8, 12 and 16 mm are used to form test section with different porosity. The different parameters are calculated like Reynolds number, Prandtl number, porosity, convective heat transfer coefficient and plotted the effects of porosity and mass flow rate on heat transfer rate. It shows that for minimum porosity heat transfer rate increases and it depends upon mass flow rate also.

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“…The forced convection heat transfer in channels filled with sintered bronze media was examined by Jiang et al [11], [12]. The heat transfer and pressure drop in a rectangular channel with sintered porous stainless steel inserts of different porosities for the purpose of cooling mini-devices was investigated by Hetsroni et al [13]. Tzeng and Jeng [14] reported that the cooling performance of heat sink with uncompressed porous media was better than that of compressed media.…”

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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Sintered porous medium heat sink for cooling of high-power mini-devices

Cited by 148 publications

References 14 publications

Using Porous Media to Enhancement of Heat Transfer in Heat Exchangers

Using Porous Media to Enhancement of Heat Transfer in Heat Exchangers

Investigation of Heat Transfer Rate through Porous Material

Design of Porous-Microchannel Heat Sinks with Different Porous Configurations

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