scholarly journals Filmwise condensation of a pure fluid and a binary mixture in a bundle of enhanced surface tubes

2002 ◽  
Vol 41 (7) ◽  
pp. 631-638 ◽  
Author(s):  
M. Belghazi ◽  
A. Bontemps ◽  
C. Marvillet
Keyword(s):  
Binary Mixture ◽  
Pure Fluid ◽  
Enhanced Surface

Binary mixture of short and long chain glycolipids and its enhanced surface activity

2020 ◽  
Vol 601 ◽  
pp. 125008
Author(s):  
Kanaparedu P.C. Sekhar ◽  
Vinita Solanki ◽  
Divya Patel ◽  
Snehal Ashokrao Holey ◽  
Rati Ranjan Nayak
Keyword(s):  
Binary Mixture ◽  
Surface Activity ◽  
Enhanced Surface ◽  
Long Chain

scholarly journals Condensation Heat Transfer on Enhanced Surface Tubes: Experimental Results and Predictive Theory

2002 ◽  
Vol 124 (4) ◽  
pp. 754-761 ◽  
Author(s):  
M. Belghazi ◽  
A. Bontemps ◽  
C. Marvillet
Keyword(s):  
Heat Transfer ◽  
Three Dimensional ◽  
Condensation Heat Transfer ◽  
Finned Tubes ◽  
Pure Fluid ◽  
Fin Tubes ◽  
Predictive Theory ◽  
Enhanced Surface ◽  
Fin Spacing ◽  
The Heat Transfer Coefficient

Condensation heat transfer in a bundle of horizontal enhanced surface copper tubes (Gewa C+ tubes) has been experimentally investigated, and a comparison with trapezoidal shaped fin tubes with several fin spacing has been made. These tubes have a specific surface three-dimensional geometry (notched fins) and the fluids used are either pure refrigerant (HFC134a) or binary mixtures of refrigerants (HFC23/HFC134a). For the pure fluid and a Gewa C+ single tube, the results were analyzed with a specifically developed model, taking into account both gravity and surface tension effects. For the bundle and for a pure fluid, the inundation of the lowest tubes has a strong effect on the Gewa C+ tube performances contrary to the finned tubes. For the mixture, the heat transfer coefficient decreases dramatically for the Gewa C+ tube.

Experimental pure fluid and binary mixture performance in a heat pump equipped with a distillation column

2004 ◽  
Vol 27 (8) ◽  
pp. 940-947 ◽  
Author(s):  
James G. Gebbie ◽  
Michael K. Jensen ◽  
Piotr A. Domanski ◽  
David A. Didion
Keyword(s):  
Binary Mixture ◽  
Heat Pump ◽  
Distillation Column ◽  
Pure Fluid

Solidification of a binary mixture in a shear flow

2002 ◽  
Author(s):  
Sophie Mergui ◽  
Boubaker Feroual ◽  
Christine Benard ◽  
Dominique Gobin
Keyword(s):  
Shear Flow ◽  
Binary Mixture
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