Transient Thermo-Fluid Modeling of Loop Heat Pipes and Experimental Validation

2013 ◽  
Vol 27 (4) ◽  
pp. 641-647 ◽  
Author(s):  
Masahito Nishikawara ◽  
Hosei Nagano ◽  
Tarik Kaya
Keyword(s):  
Experimental Validation ◽  
Heat Pipes ◽  
Fluid Modeling ◽  
Loop Heat Pipes

scholarly journals Experimental Study on Thermal Performance of a Loop Heat Pipe with Different Working Wick Materials

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2453
Author(s):  
Kyaw Zin Htoo ◽  
Phuoc Hien Huynh ◽  
Keishi Kariya ◽  
Akio Miyara
Keyword(s):  
Stainless Steel ◽  
Heat Pipes ◽  
Working Fluid ◽  
Stable Operation ◽  
Loop Heat Pipe ◽  
Heater Surface ◽  
Loop Heat Pipes ◽  
Limited Temperature ◽  
Sintered Stainless Steel ◽  
Continuous Heat

In loop heat pipes (LHPs), wick materials and their structures are important in achieving continuous heat transfer with a favorable distribution of the working fluid. This article introduces the characteristics of loop heat pipes with different wicks: (i) sintered stainless steel and (ii) ceramic. The evaporator has a flat-rectangular assembly under gravity-assisted conditions. Water was used as a working fluid, and the performance of the LHP was analyzed in terms of temperatures at different locations of the LHP and thermal resistance. As to the results, a stable operation can be maintained in the range of 50 to 520 W for the LHP with the stainless-steel wick, matching the desired limited temperature for electronics of 85 °C at the heater surface at 350 W (129.6 kW·m−2). Results using the ceramic wick showed that a heater surface temperature of below 85 °C could be obtained when operating at 54 W (20 kW·m−2).

Thermal Control with Low Power, Miniature Loop Heat Pipes

1999 ◽  
Author(s):  
Walter B. Bienert ◽  
William J. Krotiuk ◽  
Michael N. Nikitkin
Keyword(s):  
Low Power ◽  
Heat Pipes ◽  
Thermal Control ◽  
Loop Heat Pipes
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