Experimental study of a pulsating heat pipe using nanofluid as a working fluid

2014 ◽  
Author(s):  
Miguel Gonzalez ◽  
Yoon Jo Kim
Keyword(s):  
Experimental Study ◽  
Heat Pipe ◽  
Working Fluid ◽  
Pulsating Heat Pipe

Experimental Study on Start-up Characteristics of Pulsating Heat Pipe

2011 ◽  
Vol 354-355 ◽  
pp. 87-91 ◽  
Author(s):  
Xun Wang ◽  
Tong Han ◽  
Lei Wang ◽  
Xin Xin Mao ◽  
Cheng Si Yang
Keyword(s):  
Experimental Study ◽  
Heat Pipe ◽  
Filling Ratio ◽  
Heating Power ◽  
Working Fluid ◽  
Incline Angle ◽  
Distilled Water ◽  
Pulsating Heat Pipe ◽  
Start Up ◽  
Time Required

Pulsating heat pipe (PHP) with distilled water and acetone as working fluids was experimentally investigated. It is found that the PHP required a certain range of heating power to be started, within which the time required to start the PHP became shorter when the heating power was higher. There was a certain incline angle which is 45°in this experiment to start the PHP more quickly than other angles performed. The minimum power to start the PHP became higher when the filling ratio was higher. Compared with distilled water, the PHP was more readily to be started with acetone as working fluid.

Experimental Study of Evaporator Surface Area Influence on a Closed Loop Pulsating Heat Pipe Performance

2012 ◽  
Author(s):  
Mohammad Hadi Tabatabaee ◽  
Mahshid Mohammadi ◽  
Mohammad Behshad Shafii
Keyword(s):  
Experimental Study ◽  
Heat Source ◽  
Heat Pipe ◽  
Flow Regime ◽  
Surface Area ◽  
Closed Loop ◽  
Heat Removal ◽  
Working Fluid ◽  
Pulsating Heat Pipe ◽  
Widespread Application

Pulsating Heat Pipes are an effective mean for heat removal with the potential for a widespread application in electronic packaging. An experimental study a Closed Loop Pulsating Heat Pipe (CLPHP) constructed of copper tubes formed into four meandering turns is presented. Once configured in a vertical orientation the lower portion of the CLPHP comes in contact with a heat source (called the evaporator) from which it will remove heat through the pulsating action of the two-phase mixture contained within the initially evacuated copper tubes eventually transfer the heat to a heat sink (known as the condenser). Heat fluxes can be measured using temperature data gathered from experiments. Thermocouples connected to the copper tubes at several locations provide this data. Experiments were conducted using deionized water as the working fluid. The surface area of the tubing which comes in contact with the heat source at the evaporator affects the heat removal rates. This effect was studied by varying the surface area in contact with the heat source while providing the same power input. Experiments were conducted using different filling ratios of working fluid (20–70%) for each case. The heat source (heating elements wound around the tubes) was supplied with different power inputs ranging from 10 to 40 W. Results indicate the surface area affects the pulsating action differently for each configuration because of its dependency on the flow regime. These results are presented for each flow regime. The results can be used to optimize the CLPHP according to the flow regime which it will be working in.

An experimental study on the performance of closed loop pulsating heat pipe (CLPHP) with methanol as a working fluid

2016 ◽  
Author(s):  
Md. Lutfor Rahman ◽  
Farah Nazifa Nourin ◽  
Zaimaa Salsabil ◽  
Nusrat Yasmin ◽  
Mohammad Ali
Keyword(s):  
Experimental Study ◽  
Heat Pipe ◽  
Closed Loop ◽  
Working Fluid ◽  
Pulsating Heat Pipe

scholarly journals Experimental study of a closed loop flat plate pulsating heat pipe under a varying gravity force

2015 ◽  
Vol 96 ◽  
pp. 23-34 ◽  
Author(s):  
V. Ayel ◽  
L. Araneo ◽  
A. Scalambra ◽  
M. Mameli ◽  
C. Romestant ◽  
...  
Keyword(s):  
Experimental Study ◽  
Flat Plate ◽  
Heat Pipe ◽  
Closed Loop ◽  
Gravity Force ◽  
Pulsating Heat Pipe

Experimental study on a hydrogen closed-loop pulsating heat pipe with two turns

Cryogenics ◽  
2019 ◽  
Vol 97 ◽  
pp. 63-69 ◽  
Author(s):  
Xiao Sun ◽  
Sizhuo Li ◽  
Bo Jiao ◽  
Zhihua Gan ◽  
John Pfotenhauer
Keyword(s):  
Experimental Study ◽  
Heat Pipe ◽  
Closed Loop ◽  
Pulsating Heat Pipe
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