Miniature loop heat pipes - a promising means for cooling electronics

Maydanik, Yury F.; Vershinin, S.V.; Korukov, M.A.; Ochterbeck, J. M.

doi:10.1109/itherm.2004.1318253

Cited by 37 publications

(41 citation statements)

References 1 publication

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“…They have been widely used in the spacecraft thermal control system [2,3], and have extensive application promises for aircraft thermal management [4,5] and electronics system cooling [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of steady-state operation of a loop heat pipe

Bai

Lin

Zhang

et al. 2009

Applied Thermal Engineering

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Section: Introductionmentioning

confidence: 99%

Mathematical modeling of steady-state operation of a loop heat pipe

Bai

Lin

Zhang

et al. 2009

Applied Thermal Engineering

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“…They are also used effectively for thermal management of electronic system (Singh et al, 2007). Miniature cylindrical LHP has been developed for electronic cooling applications (Maydanik et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Flow Visualization of a Flat Loop Heat Pipe

Kizito¹,

Hossain²

2017

Frontiers in Heat Pipes

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Thermal management is an important issue for electronic cooling application. Choosing an efficient cooling technique depends on thermal performance, reliability, manufacturing cost, and prospects for minimization of packaging cost. A loop heat pipe with a flat evaporator and a flat gap condenser was designed and developed to evaluate the loop performance for a range of heat load. During the study, the startup process and temperature profiles at different components of loop were compared at various heat loads. Heat transfer coefficients and the thermal resistances of the loop were also measured at these loads. In the evaporator, a disc shape copper wick was able to handle 100-watt heat load with the evaporator thermal resistance of 0.14Ԩ/ܹ and heat transfer coefficient of 14.114ܹ/݉ ଶ Ԩ. To visually investigate the startup process and component performance, main structure of loop heat pipe was fabricated inside acrylic plastic block. The startup process in the vapor line, the formation of bubble inside condenser and compensation chamber during the loop heat pipe operation were visualized and explained. The visualization process helps to understand the physical phenomenon of the complete heat loop in a single frame.

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“…Their high pumping capability, excellent heat transfer performance and flexible thermal link function have been traditionally utilized to address the thermal-management problems of spacecraft, and successfully applied in many space tasks [3][4][5][6][7][8][9][10][11]. With the continuous development of LHP technology in space applications, more recently, its application has been extended to terrestrial surroundings such as in high heat flux electronics cooling [12][13][14][15][16] and thermal-management systems for aircraft and submarines [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Effect of evaporator tilt on the operating temperature of a loop heat pipe without a secondary wick

Bai

Lin

Zhang

et al. 2014

International Journal of Heat and Mass Transfer

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Abstract:The effect of evaporator tilt on the operating temperature of a loop heat pipe (LHP) without a secondary wick under terrestrial surroundings was investigated both experimentally and theoretically in this work. The experiments were conducted with the evaporator placed at three different tilts: (i) the evaporator was horizontal with the compensation chamber (CC), (iii) the evaporator was vertically below the CC, and (iii) the evaporator was higher the CC with a tilt angle of xx. The experimental results show that the evaporator tilt has significant effect on the operating temperature of the LHP: the operating temperature of the case iii) was much higher than the other two cases.A mathematical model including a two-zoned evaporator wick, i.e. a subcooled zone and a saturated zone, was built and solved, which agreed well with the experimental observation. . The results showed that the cooling effect of the returning liquid on the vapor region in the CC or evaporator core is crucial in determining the operating temperature of LHPs..

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Miniature loop heat pipes - a promising means for cooling electronics

Cited by 37 publications

References 1 publication

Mathematical modeling of steady-state operation of a loop heat pipe

Mathematical modeling of steady-state operation of a loop heat pipe

Thermal Analysis and Flow Visualization of a Flat Loop Heat Pipe

Effect of evaporator tilt on the operating temperature of a loop heat pipe without a secondary wick

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