Dynamic thermal heat pipes analysis: Thermal impedance in start-up condition

被引:1
|
作者
Felczak, M. [1 ]
de Mey, G. [2 ]
Wiecek, B. [1 ]
Chatzipanagiotou, P. [3 ]
Chatziathanasiou, V [3 ]
机构
[1] Lodz Univ Technol, Inst Elect, St Wolczanska 211-215, PL-90924 Lodz, Poland
[2] Univ Ghent, Dept Elect & Informat Syst, Technol Pk,Zwijnaarde 41, B-9052 Zwijnaarde, Belgium
[3] Aristotle Univ Thessaloniki, Dept Elect & Comp Engn, Thessaloniki 54124, Greece
关键词
Heat transfer; Thermal impedance; Heat pipe; TRANSIENT-RESPONSE; NANOPARTICLES; SIMULATION; TURBULATOR;
D O I
10.1016/j.mejo.2019.104639
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Heat dissipation is one of the most important issues for electronics development. Heat pipes are one of the most efficient heat transporting devices on the market. This paper presents a dynamic analysis of a heat pipe in start-up condition. Through a theoretical analysis, an appropriate RC thermal model is proposed. From the proposed RC model network, the temperature is calculated and the thermal impedance Nyquist plot is obtained. In order to validate the theoretical results several experimental measurements are conducted. In an arrangement including a heat pipe, a power step input is applied and the temperature is measured at the heat source. From the measured temperature, the thermal impedance Nyquist plot is calculated and is juxtaposed with the one calculated from the proposed RC model network. From the comparison, the proposed RC model network is validated and the observed phenomena from the experimental measurements are explained. Thermal impedance Nyquist plot obtained from the experiments was calculated.
引用
收藏
页数:5
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