Momentum and energy balances for dispersed two-phase flow

1961 ◽  
Vol 10 (1) ◽  
pp. 102-108 ◽  
Author(s):  
J. J. Deemter ◽  
E. T. Laan
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Energy Balances

Effect of Branch Orientation on Annular Two-Phase Flow in T-Junctions

1996 ◽  
Vol 118 (1) ◽  
pp. 166-171 ◽  
Author(s):  
F. Peng ◽  
M. Shoukri ◽  
A. M. C. Chan
Keyword(s):  
Annular Flow ◽  
Two Phase Flow ◽  
Mechanical Energy ◽  
Phase Flow ◽  
Two Phase ◽  
Experimental Conditions ◽  
Present Test ◽  
Modelling Studies ◽  
Pressure Changes ◽  
Energy Balances

Experimental data on dividing steam-water two-phase annular flow in T-junctions with horizontal inlet and downwardly inclined branches were obtained. The experiments were performed under experimental conditions which have not been examined before. The branch orientation was found to be a significant parameter affecting phase redistribution in the junction. Increasing the downward inclination of the branch was found to reduce the degree of phase separation in the junction under the present test conditions. This is caused by the nonuniform distribution of the liquid film thickness associated with the horizontal inlet annular flow. The phase redistribution data were compared with available models. The need for additional modelling studies was evident. The pressure changes of two-phase flow in the junction were closely correlated with the phase redistribution phenomenon. The data on pressure changes in the junction were correlated using simple models based on momentum and mechanical energy balances.

scholarly journals Computer cooling using a two phase minichannel thermosyphon loop heated from horizontal and vertical sides and cooled from vertical side

2010 ◽  
Vol 31 (4) ◽  
pp. 51-59 ◽  
Author(s):  
Henryk Bieliński ◽  
Jarosław Mikielewicz
Keyword(s):  
Heat Transfer ◽  
Personal Computer ◽  
Two Phase Flow ◽  
Cooling System ◽  
Cooling Capacity ◽  
Phase Flow ◽  
Two Phase ◽  
Vertical Side ◽  
Horizontal Side ◽  
Energy Balances

Computer cooling using a two phase minichannel thermosyphon loop heated from horizontal and vertical sides and cooled from vertical sideIn the present paper it is proposed to consider the computer cooling capacity using the thermosyphon loop. A closed thermosyphon loop consists of combined two heaters and a cooler connected to each other by tubes. The first heater may be a CPU processor located on the motherboard of the personal computer. The second heater may be a chip of a graphic card placed perpendicular to the motherboard of personal computer. The cooler can be placed above the heaters on the computer chassis. The thermosyphon cooling system on the use of computer can be modeled using the rectangular thermosyphon loop with minichannels heated at the bottom horizontal side and the bottom vertical side and cooled at the upper vertical side. The riser and a downcomer connect these parts. A one-dimensional model of two-phase flow and heat transfer in a closed thermosyphon loop is based on mass, momentum, and energy balances in the evaporators, rising tube, condenser and the falling tube. The separate two-phase flow model is used in calculations. A numerical investigation for the analysis of the mass flux rate and heat transfer coefficient in the steady state has been accomplished.

Two-Phase Flow, Momentum and Energy Balances Revisited

2008 ◽  
Vol 11 (1-2) ◽  
pp. 121-126 ◽  
Author(s):  
R.S. Raghunathan ◽  
P.L. Spedding ◽  
R.K. Cooper
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Energy Balances
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