Numerical simulation of heat transfer and two-phase flow in a novel heat pipe cold plate

• Autorzy: Ma Z. , Yao S.
• Języki publikacji: EN

Abstrakty

EN

To solve high heat flux cooling problems in case of modern electronic appliances, a novel heat pipe cold plate is designed and developed. The heat pipe cold plate is uniquely-different from normal thermosyphons, in which the acetone-aluminum heat pipe construction is composed of eight vertical heat pipe branches with their upper ends and lower ends connected with each other by two horizontal heat pipe branches, respectively, which make the working vapour and liquid flow smooth within the internal flow space of the heat pipe cold plate. In this paper, based on previous experimental and theoretical studies, a mathematical model for numerical simulations of the vapour-liquid two-phase flow and heat transfer phenomena in the heat pipe cold plate is presented. Two-fluid-model is employed to describe flow characteristics and phase interaction between vapour and liquid phases. Differential equations are solved by finite volume method and IPSA algorithm is employed to consider the vapour-liquid coupling effect. Effects of the total heating power and the cooling water flow rate on wall temperature distribution and two-phase flow heat transfer characteristics are numerically simulated. Computation results well agree with experimental results. The novel heat pipe cold plate possesses excellent heat transfer characteristics and temperature uniformity performance; it can provide a much better cooling solution for multi-heat-source and high heat-flux cooling problems than forced-convection cooling techniques. Also, numerical solution established and realized in this paper can be used as a reference.

Słowa kluczowe

EN

Electronic equipment cooling; Heat pipe cold plate; heat transfer enhancement; numerical simulation; Startup performance; two-fluid model; two-phase flow

PL

efektywność wymiany ciepła; model dwucieczowy; numeryczna symulacja; przepływ dwufazowy; rozruch; rura cieplna; sprzęt chłodniczy; sprzęt elektryczny

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2009
• Tom: Vol. 30, no. 1
• Strony: 45--62
• Opis fizyczny: Bibliogr. 18 poz.,Rys., wykr., wz.,

Twórcy

autor

Ma Z.

autor

Yao S.

• Department of Power Engineering, School of Mechanical and Power Engineering, Jiangsu University of Science and Technology, No. 2, Mengxi Road, Zhenjiang City, Jiangsu Province, P.R. China

Bibliografia

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