Modeling of annular and intermittent flow condensation in micro- and mini- channels with experimental validation

2021 ◽  
Vol 176 ◽  
pp. 121507
Author(s):  
Khoudor Keniar ◽  
Srinivas Garimella
Keyword(s):  
Experimental Validation ◽  
Intermittent Flow ◽  
Mini Channels ◽  
Flow Condensation

An Experimental Study of Flow Condensation Heat Transfer Inside Circular and Rectangular Mini-Channels

2004 ◽  
Author(s):  
J. S. Shin ◽  
M. H. Kim
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Mass Flux ◽  
Saturation Temperature ◽  
Condensation Heat Transfer ◽  
Transfer Coefficients ◽  
Two Phase ◽  
Experimental Apparatus ◽  
Mini Channels ◽  
Flow Condensation

By using unique experimental techniques and careful construction of the experimental apparatus, the characteristics of the local heat transfer were investigated using the condensing R134a two-phase flow, in horizontal single mini-channels. The circular channels (Dh = 0.493, 0.691, and 1.067 mm) and rectangular channels (Dh = 0.494, 0.658, and 0.972 mm) were tested and compared. Tests were performed for a mass flux of 100, 200, 400, and 600 kg/m2s, a heat flux of 5 to 20 kW/m2, and a saturation temperature of 40°C. In this study, effect of heat flux, mass flux, vapor qualities, hydraulic diameter, and channel geometry on flow condensation were investigated and the experimental local condensation heat transfer coefficients are shown. The experimental data of condensation Nusselt number are compared with existing correlations.

Experimental validation of the predicted TGR5 binding mode model

2015 ◽  
Vol 53 (01) ◽  
Author(s):  
L Spomer ◽  
CGW Gertzen ◽  
D Häussinger ◽  
H Gohlke ◽  
V Keitel
Keyword(s):  
Experimental Validation ◽  
Binding Mode
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