Charge reduction experimental investigation of CO2 single-phase flow in a horizontal micro-channel with constant heat flux conditions

2011 ◽  
Vol 34 (4) ◽  
pp. 827-833 ◽  
Author(s):  
Maxime Ducoulombier ◽  
Stéphane Colasson ◽  
Philippe Haberschill ◽  
Florian Tingaud
Keyword(s):  
Heat Flux ◽  
Experimental Investigation ◽  
Single Phase ◽  
Constant Heat Flux ◽  
Phase Flow ◽  
Micro Channel ◽  
Charge Reduction ◽  
Single Phase Flow ◽  
Constant Heat

Variations of Buoyancy-Induced Mass Flux From Single-Phase to Two-Phase Flow in a Vertical Porous Tube With Constant Heat Flux

1999 ◽  
Vol 121 (3) ◽  
pp. 646-652 ◽  
Author(s):  
T. S. Zhao ◽  
Q. Liao ◽  
P. Cheng
Keyword(s):  
Heat Flux ◽  
Mass Flux ◽  
Single Phase ◽  
Two Phase Flow ◽  
Constant Heat Flux ◽  
Heat Fluxes ◽  
Phase Flow ◽  
Constant Heat ◽  
Two Phase ◽  
Porous Tube

This paper presents an experimental study of a buoyancy-induced flow of water with phase-change heat transfer in a vertical porous tube heated at a constant heat flux. Experiments were carried out from subcooled liquid flow to connective boiling by varying the imposed heat fluxes. At a prescribed heat flux the steady-state mass flux of water, as well as the temperatures along the tube wall and along the centerline of the packed tube, were measured. It is shown that for both single-phase flow and the two-phase flow with a rather low vapor fraction, the induced mass flux increased as the heat flux was increased. However, as the imposed heat flux was increased further, the induced mass flux dropped drastically, and remained relatively constant afterwards. The influences of various parameters such as the porous tube diameter, the particle sizes, and the hydrostatic head on the induced mass flux are also examined.

scholarly journals Experimental Investigation of Single-phase Flow in Structured Packing by LDV

2007 ◽  
Vol 15 (6) ◽  
pp. 821-827 ◽  
Author(s):  
Jiangbo CHEN ◽  
Chunjiang LIU ◽  
Yingke LI ◽  
Ying HUANG ◽  
Xigang YUAN ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Single Phase ◽  
Phase Flow ◽  
Single Phase Flow ◽  
Structured Packing

Experimental Investigation of Heat Transfer to Nanofluids

2008 ◽  
Author(s):  
Klaudia Chmiel-Kurowska ◽  
Grzegorz Dzido ◽  
Andrzej Gierczycki ◽  
Andrzej B. Jarze˛bski
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Experimental Investigation ◽  
Heat Transfer Coefficient ◽  
Ethylene Glycol ◽  
Constant Heat Flux ◽  
Experimental Investigations ◽  
Average Heat Transfer Coefficient ◽  
Constant Heat ◽  
Average Heat

Experimental investigations of convective heat transfer in nanofluid based on the Cu (approx. 0.15% and 0.25% vol.) nanoparticles synthesized in polyol process were conducted at constant heat flux conditions. A 30% increase in average heat transfer coefficient was found against the results obtained for a pure host liquid (ethylene glycol). Even more significant increase was in the entrance region.

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