Experimental Investigation of Single Bubble Nucleate Boiling in Microgravity

2020 ◽  
Vol 32 (4) ◽  
pp. 597-607
Author(s):  
Iman Nejati ◽  
Axel Sielaff ◽  
Benjamin Franz ◽  
Matthias Zimmermann ◽  
Philipp Hänichen ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Nucleate Boiling ◽  
Single Bubble

Experimental investigation of nucleate boiling over a smooth and micro-grooved cylindrical surface

2020 ◽  
pp. 323-328
Author(s):  
Balkrushna A. Shah ◽  
Mohommed Naseem Quanungo ◽  
Mohommed Naseem Quanungo ◽  
Manish Sumera ◽  
Shahil Chaudhary ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Cylindrical Surface ◽  
Nucleate Boiling

Experimental Investigation on Onset of Nucleate Boiling in Tube-Bundle Channels

2009 ◽  
Author(s):  
Guangyao Lu ◽  
Junsheng Ren ◽  
Guisheng Zhao ◽  
Wenyuan Xiang ◽  
Huaning Ai
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Experimental Investigation ◽  
Heat Transfer Coefficient ◽  
Tube Bundle ◽  
Nucleate Boiling ◽  
Visualization Experiment ◽  
Inclined Tube ◽  
Good Accordance ◽  
The Heat Transfer Coefficient

Experiments are carried out to investigate the Onset of Nucleate Boiling (ONB) of refrigerant R-113 through vertical and inclined tube-bundle channels. Several methods are adopted to ascertain ONB in the experiments, and their differences are analyzed. The experiments show that the results of ONB estimation from the visualization experiment, ONB estimation from the wall temperature and that from the heat transfer coefficient are uniform. The influences of heat flux, mass flow rate, the geometric dimensions and inclination angle of the tube-bundle channels on the ONB height are explored in detail. On the foundation of the comparisons and analyses, an equation is put forward for calculating the ONB height in tube-bundle channels, which has a good accordance with the experimental results.

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