1022 Simultaneous measurement of fluid field and liquid layer thickness near a heat transfer surface of pool boiling in a confined space

2015 ◽  
Vol 2015 (0) ◽  
pp. _1022-1_-_1022-2_
Author(s):  
Makoto ITO ◽  
Taiki KOIZUMI ◽  
Manabu TANGE
Keyword(s):  
Heat Transfer ◽  
Layer Thickness ◽  
Liquid Layer ◽  
Simultaneous Measurement ◽  
Pool Boiling ◽  
Heat Transfer Surface ◽  
Confined Space ◽  
Fluid Field ◽  
Liquid Layer Thickness

Numerical study of pool boiling heat transfer in a large-scale confined space

2017 ◽  
Vol 118 ◽  
pp. 188-198 ◽  
Author(s):  
Yongsheng Tian ◽  
Keyuan Zhang ◽  
Naihua Wang ◽  
Zheng Cui ◽  
Lin Cheng
Keyword(s):  
Heat Transfer ◽  
Boiling Heat Transfer ◽  
Large Scale ◽  
Numerical Study ◽  
Pool Boiling ◽  
Confined Space ◽  
Pool Boiling Heat Transfer

scholarly journals The effect of the liquid layer thickness on the evaporation intensity

2018 ◽  
Vol 194 ◽  
pp. 01030
Author(s):  
Aleksei Kreta ◽  
Vyacheslav Maksimov
Keyword(s):  
Experimental Study ◽  
Layer Thickness ◽  
Liquid Layer ◽  
Flow Rate ◽  
Gas Flow ◽  
Shear Stresses ◽  
Gas Velocity ◽  
Evaporation Intensity ◽  
Liquid Layer Thickness ◽  
Thermocapillary Forces

An experimental study of the influence of thermo-capillary forces and shear stresses with the side of the gas flow to the evaporation flow rate has been made. The experiments were carried out at various thicknesses of the liquid layer and constant gas velocity. The influence of the thickness of the liquid layer on the evaporation flow rate (the intensity of evaporation) has been analyzed. It is shown that the thermocapillary forces have a direct effect on the evaporation flow rate of the liquid layer.

scholarly journals Experimental determination of change in the liquid layer thickness on the heated surface by confocal sensor

2017 ◽  
Vol 159 ◽  
pp. 00011 ◽  
Author(s):  
Dmitry Feoktistov ◽  
Sergey Misyura ◽  
Anastasia Islamova ◽  
Kseniya Batishcheva
Keyword(s):  
Experimental Determination ◽  
Layer Thickness ◽  
Liquid Layer ◽  
Heated Surface ◽  
Liquid Layer Thickness

scholarly journals Effects of Femtosecond Laser Surface Processed Nanoparticle Layers on Pool Boiling Heat Transfer Performance

2018 ◽  
Vol 10 (3) ◽  
Author(s):  
Corey Kruse ◽  
Mike Lucis ◽  
Jeff E. Shield ◽  
Troy Anderson ◽  
Craig Zuhlke ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Femtosecond Laser ◽  
Layer Thickness ◽  
Boiling Heat Transfer ◽  
Heat Transfer Performance ◽  
Pool Boiling ◽  
Laser Surface ◽  
Transfer Performance ◽  
Pool Boiling Heat Transfer ◽  
Nanoparticle Layer

An experimental investigation of the effects of layers of nanoparticles formed during femtosecond laser surface processing (FLSP) on pool boiling heat transfer performance has been conducted. Five different stainless steel 304 samples with slightly different surface features were fabricated through FLSP, and pool boiling heat transfer experiments were carried out to study the heat transfer characteristics of each surface. The experiments showed that the layer(s) of nanoparticles developed during the FLSP processes, which overlay FLSP self-organized microstructures, can either improve or degrade boiling heat transfer coefficients (HTC) depending on the overall thickness of the layer(s). This nanoparticle layer thickness is an indirect result of the type of microstructure created. The HTCs were found to decrease with increasing nanoparticle layer thickness. This trend has been attributed to added thermal resistance. Using a focused ion beam milling process and transmission electron microscopy (TEM), the physical and chemical properties of the nanoparticle layers were characterized and used to explain the observed heat transfer results. Results suggest that there is an optimal nanoparticle layer thickness and material composition such that both the HTCs and critical heat flux (CHF) are enhanced.

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