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Visual Onset of Nucleate Boiling in Water Spray Cooling on Hot Steel Plate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The onset of nucleate boiling in water spray cooling on hot steel plate was investigated by a simultaneous boiling visualization and heat transfer measurement. The boiling phenomena were visualized with 4K video camera and ...
Drop Impact Variation at the Extremes of Wettability
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Depicted are sequences of water drop impacts on copper, taken at 16,000 fps. The copper is treated with a heated alkali solution, resulting in a highly wetting, nanoscale structured, cupric oxide layer with a static contact ...
Flow Visualization inside Thermosyphon for Measuring Heat Transfer Limit
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat pipe is a highly effective passive heat transfer device using phase change within small temperature difference. It is noted that heat pipe should be operated under heat transfer limit for practical heat pipe heat ...
Orientation Effects on Pool Boling of Microporous Coating in Water
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Copper HTCMC (High-temperature, Thermally Conductive Microporous Coating) with a coating thickness of ~300 µm was created by sintering 67 µm copper particles onto a flat copper surface. This was shown to be the optimum ...
Effect of Wettability on Pool Boiling Incipience in Saturated Water
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Three different copper surfaces bare, Al2O3 nanocoated, and Polytetrafluoroethylene (PTFE) coated are prepared and tested to examine the effect of wettability on the pool boiling incipience in saturated water at 1 atm. A ...
Effect of Surface Roughness on Pool Boiling Heat Transfer of Water on a Superhydrophilic Aluminum Surface
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of surface roughness on the pool boiling heat transfer of water was investigated on superhydrophilic aluminum surfaces. The formation of nanoscale protrusions on the aluminum surface was confirmed after immersing ...