Experimental study of the effect of non-circular flow geometry on the critical heat flux

1999 ◽  
Vol 187 (3) ◽  
pp. 339-362 ◽  
Author(s):  
I.L Pioro ◽  
S.C Cheng ◽  
D.C Groeneveld ◽  
A.Ž Vasić ◽  
S Pinchon ◽  
...  
Keyword(s):  
Experimental Study ◽  
Heat Flux ◽  
Critical Heat Flux ◽  
Circular Flow ◽  
Flow Geometry

Experimental study on critical heat flux of highly efficient soft hydrophilic CuO–chitosan nanofluid templates

2016 ◽  
Vol 100 ◽  
pp. 396-406 ◽  
Author(s):  
Ravi Kumar Cheedarala ◽  
Eunju Park ◽  
Kyungil Kong ◽  
Young-Bin Park ◽  
Hyung Wook Park
Keyword(s):  
Experimental Study ◽  
Heat Flux ◽  
Critical Heat Flux ◽  
Highly Efficient

Experimental Study of Pool Boiling Critical Heat Flux on Thin Wires under Various Gravities

2019 ◽  
Vol 31 (4) ◽  
pp. 339-345 ◽  
Author(s):  
Xiande Fang ◽  
Ling Zheng ◽  
Yan He ◽  
Gen Li ◽  
Minghua Bi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Heat Flux ◽  
Critical Heat Flux ◽  
Pool Boiling ◽  
Thin Wires

Experimental Study of Flow Critical Heat Flux in Low Concentration Water-Based Nanofluids

2008 ◽  
Author(s):  
Sung Joong Kim ◽  
Tom McKrell ◽  
Jacopo Buongiorno ◽  
Lin-Wen Hu
Keyword(s):  
Experimental Study ◽  
Heat Flux ◽  
Critical Heat Flux ◽  
Test Section ◽  
Flow Boiling ◽  
Saturation Temperature ◽  
Outlet Temperature ◽  
Flow Loop ◽  
Maximum Heat ◽  
Low Concentration

Nanofluids are known as dispersions of nano-scale particles in solvents. Recent reviews of pool boiling experiments using nanofluids have shown that they have greatly enhanced critical heat flux (CHF). In many practical heat transfer applications, however, it is flow boiling that is of particular importance. Therefore, an experimental study was performed to verify whether or not a nanofluid can indeed enhance the CHF in the flow boiling condition. The nanofluid used in this work was a dispersion of aluminum oxide particles in water at very low concentration (≤0.1 v%). CHF was measured in a flow loop with a stainless steel grade 316 tubular test section of 5.54 mm inner diameter and 100 mm long. The test section was designed to provide a maximum heat flux of about 9.0 MW/m2, delivered by two direct current power supplies connected in parallel. More than 40 tests were conducted at three different mass fluxes of 1,500, 2,000, and 2,500 kg/m2sec while the fluid outlet temperature was limited not to exceed the saturation temperature at 0.1 MPa. The experimental results show that the CHF could be enhanced by as much as 45%. Additionally, surface inspection using Scanning Electron Microscopy reveals that the surface morphology of the test heater has been altered during the nanofluid boiling, which, in turn, provides valuable clues for explaining the CHF enhancement.

Experimental study of critical heat flux in a two-phase open concentric-tube thermosyphon

1997 ◽  
Vol 26 (5) ◽  
pp. 319-331 ◽  
Author(s):  
Yuichi Mitsutake ◽  
Masanori Monde ◽  
Mohammad Z. Hasan ◽  
Wook Kim
Keyword(s):  
Experimental Study ◽  
Heat Flux ◽  
Critical Heat Flux ◽  
Two Phase
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