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Experimental investigation of the heat transfer characteristics of a vibrational two-phase loop thermosiphon

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Abstract

The two-phase loop thermosiphon is widely used in chip cooling combined with a fan and vibrates under the influence of the fan. In order to analyze the influence of vibration on the heat transfer characteristics, two-phase loop thermosiphons with a vibration frequency of 40 Hz and a vibration acceleration of 20 m·s−2 were studied experimentally. The obtained results show that vibration does not change the change trend of temperature distribution and thermal resistance of a two-phase loop thermosiphon. However, vibration affects the heat transfer performance of the two-phase loop thermosiphon and the influence is affected by the coupling effect of the liquid filling rate. Also, vibration shortens the starting-up time of the two-phase loop thermosiphon and restrains the superheat of the evaporation section during starting-up processes.

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Abbreviations

T:

Temperature (℃)

FR:

Filling ratio (%)

H:

Height (m)

Q:

Effective heating power(W)

P:

Heating power (W)

R:

Thermal resistance (℃·W−1)

C:

Specific heat capacity(J·g−1·℃−1)

\(\dot{m}\) :

Mass flow rate(g·min−1)

c, cond:

Condensing section

e, evap:

Evaporation section

in:

Inlet

out:

Outlet

s:

Static

v:

Vibration

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Acknowledgements

The financial support of Guangdong Basic and Applied Basic Research Foundation (No. 2020A1515111099, No.2019A1515110304) is gratefully acknowledged.

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Authors and Affiliations

  1. School of Mechatronics Engineering, Foshan University, No.18, Jiangwan Road, Foshan, Guangdong, 528000, People’s Republic of China

    Zhifeng Wang, Yanbo Huang & Fajing Li

  2. Institute of Intelligent Manufacturing Technology, Shenzhen Polytechnic, 4089 Shahe West Road, Shenzhen, 518055, China

    Tao Gong

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  1. Zhifeng Wang
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  2. Yanbo Huang
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  3. Tao Gong
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  4. Fajing Li
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Correspondence to Tao Gong.

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Highlights

• Two-Phase Loop Thermosiphons (TPLTs) are studied in vibrational state.

• The influence of vibration on heat transfer performance of TPLTs is analyzed.

• The effect of vibration on the start-up process is investigated.

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Wang, Z., Huang, Y., Gong, T. et al. Experimental investigation of the heat transfer characteristics of a vibrational two-phase loop thermosiphon. Heat Mass Transfer 59, 817–824 (2023). https://doi.org/10.1007/s00231-022-03290-3

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  • DOI: https://doi.org/10.1007/s00231-022-03290-3

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