Study on Liquid Film Formed with Liquid Column Oscillation in Pulsating Heat Pipe

2018 ◽  
Vol 2018 (0) ◽  
pp. 0024
Author(s):  
Masayoshi Miura ◽  
Haruki Arai ◽  
Hiroyuki Ito
Keyword(s):  
Liquid Film ◽  
Heat Pipe ◽  
Liquid Column ◽  
Pulsating Heat Pipe

An Investigation of Evaporation, Boiling, and Heat Transport Performance in Pulstating Heat Pipe

2002 ◽  
Author(s):  
Qingjun Cai ◽  
Reh-Lin Chen ◽  
Chung-Lung Chen
Keyword(s):  
Temperature Gradient ◽  
Liquid Film ◽  
Heat Pipe ◽  
Heat Transport ◽  
Thin Liquid Film ◽  
Pulsating Heat Pipe ◽  
Liquid Slug ◽  
Fill Ratio ◽  
Liquid Heat ◽  
Observation Results

Pulsating heat pipe (PHP) is a latest development in heat pipe technology. In this paper, evaporation and boiling phenomena are investigated, and liquid heat transport performance in a PHP is measured at different fill ratio as well. The observation results show that phase change in the evaporator may occur by two different mechanisms: 1) evaporation and boiling in thin liquid film on the evaporator wall, 2) generation and collapse of tiny bubbles suspended in the liquid slug. Meanwhile, the temperature measurement indicates that temperature gradient between the evaporator and the condenser is related to liquid latent heat, density, viscosity, and mass filled in.

HEAT TRANSFER STUDIES IN A CLOSED LOOP PULSATING HEAT PIPE

2014 ◽  
Vol 5 (1-4) ◽  
pp. 449-456
Author(s):  
Bhawna Verma ◽  
V. L. Yadav ◽  
K. K. Srivastava
Keyword(s):  
Heat Transfer ◽  
Heat Pipe ◽  
Closed Loop ◽  
Pulsating Heat Pipe
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