Experimental investigation of heat transfer in a centrifugal heat pipe with an optimized layer of heat-transfer agent

1982 ◽  
Vol 43 (5) ◽  
pp. 1242-1246
Author(s):  
B. N. Krivosheev ◽  
M. P. Kukharskii ◽  
V. D. Portnov
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Pipe ◽  
Heat Transfer Agent

Heat Transport Capability in an Oscillating Heat Pipe

2008 ◽  
Vol 130 (8) ◽  
Author(s):  
H. B. Ma ◽  
B. Borgmeyer ◽  
P. Cheng ◽  
Y. Zhang
Keyword(s):  
Heat Transfer ◽  
Mathematical Model ◽  
Experimental Investigation ◽  
Heat Pipe ◽  
Temperature Difference ◽  
Convection Heat Transfer ◽  
Power Input ◽  
Film Condensation ◽  
Oscillating Heat Pipe ◽  
Oscillating Motion

A mathematical model predicting the oscillating motion in an oscillating heat pipe is developed. The model considers the vapor bubble as the gas spring for the oscillating motions including effects of operating temperature, nonlinear vapor bulk modulus, and temperature difference between the evaporator and the condenser. Combining the oscillating motion predicted by the model, a mathematical model predicting the temperature difference between the evaporator and the condenser is developed including the effects of the forced convection heat transfer due to the oscillating motion, the confined evaporating heat transfer in the evaporating section, and the thin film condensation in the condensing section. In order to verify the mathematical model, an experimental investigation was conducted on a copper oscillating heat pipe with eight turns. Experimental results indicate that there exists an onset power input for the excitation of oscillating motions in an oscillating heat pipe, i.e., when the input power or the temperature difference from the evaporating section to the condensing section was higher than this onset value the oscillating motion started, resulting in an enhancement of the heat transfer in the oscillating heat pipe. Results of the combined theoretical and experimental investigation will assist in optimizing the heat transfer performance and provide a better understanding of heat transfer mechanisms occurring in the oscillating heat pipe.

Experimental investigation of graphene oxide nanofluid on heat transfer enhancement of pulsating heat pipe

2018 ◽  
Vol 91 ◽  
pp. 90-94 ◽  
Author(s):  
Mohammad Alhuyi Nazari ◽  
Roghayeh Ghasempour ◽  
Mohammad Hossein Ahmadi ◽  
Gholamreza Heydarian ◽  
Mohammad Behshad Shafii
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Graphene Oxide ◽  
Heat Pipe ◽  
Heat Transfer Enhancement ◽  
Pulsating Heat Pipe ◽  
Transfer Enhancement

EXPERIMENTAL INVESTIGATION ON HEAT TRANSFER ENHANCEMENT OF SEMOS HEAT PIPE

Equipment ◽  
2006 ◽  
Author(s):  
H. Xian ◽  
F. Shang ◽  
D. Y. Liu ◽  
X. Z. Du ◽  
Y. P. Yang
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Pipe ◽  
Heat Transfer Enhancement ◽  
Transfer Enhancement

Experimental investigation of heat transfer in the evaporator of a water heat pipe

1977 ◽  
Vol 33 (2) ◽  
pp. 907-910
Author(s):  
Yu. N. Filippov
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Pipe

scholarly journals Experimental Investigation of Heat Transfer Performance of Rotating Heat Pipe

2015 ◽  
Vol 99 ◽  
pp. 746-751 ◽  
Author(s):  
Minghui Xie ◽  
Zhihu Xue ◽  
Wei Qu ◽  
Wei Li
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Pipe ◽  
Heat Transfer Performance ◽  
Transfer Performance

Experimental Investigation on Nanofluids Effectiveness on Heat Transfer in Oscillating Heat Pipe

2013 ◽  
Vol 856 ◽  
pp. 98-102 ◽  
Author(s):  
Hamid R. Goshayeshi ◽  
Ali Khosravi ◽  
Mehdi Abedpour Karizaki
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Pipe ◽  
High Speed ◽  
Oscillatory Flow ◽  
Glass Tube ◽  
Heat Pipes ◽  
Oscillating Heat Pipe ◽  
Flow And Heat Transfer ◽  
Heat Loads

An experimental investigation of the oscillatory flow and heat transfer in a vertical oscillating heat pipe (OHP) was conducted. The oscillating heat pipe was made of a copper-glass tube. Flow inside the oscillating heat pipe at different heat loads was recorded by a high speed camera. Through this research, the authors investigated the effect of utilizing nanofluids on heat transfer amount in heat pipes. The employed nanofluids in this study were water-Fe2O3, water-SiO2and water-TiO2with various volumetric concentrations. The results show that after adding nanoparticles in the base fluid (here water) heat transfer rate increases significantly. It's also noteworthy, of the all applied nanofluids, water-TiO2mixture presents the best enhancement in heat transfer amount.

Experimental investigation on the heat transfer performance of a flat parallel flow heat pipe

2021 ◽  
Vol 168 ◽  
pp. 120856
Author(s):  
Chao Shen ◽  
Yizhe Zhang ◽  
Zhuxuan Wang ◽  
Dongwei Zhang ◽  
Zhiying Liu
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Heat Pipe ◽  
Heat Transfer Performance ◽  
Parallel Flow ◽  
Transfer Performance ◽  
Flow Heat
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