What are the factors that affect the critical heat flux enhancement?
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Factors that affect critical heat flux (CHF) enhancement include the use of hydrophilic nanoscale and micro-scale features on surfaces, such as hydrophilic silica nanoparticles and zinc oxide nanowires . Another factor is the application of electrowetting, which amplifies the instability of the liquid-vapor interface and reduces the apparent contact angle, leading to CHF improvement . The presence of a mixing-vanes spacer grid (MVSG) in a single-rod channel also enhances CHF by influencing flow parameters and downstream distance . Anodization of copper surfaces creates Cu(OH)2 nanoneedles, which increase wettability and delay dryout phenomena, resulting in CHF enhancement . Additionally, the use of composite porous structures, with selective laser melting (SLM) technique, can significantly increase CHF by controlling pore size and structure thickness .
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20 Citations | The factors that affect the critical heat flux enhancement mentioned in the paper are the composite pore size, porous structure thickness, and the presence of large pores in the composite porous structure. |
12 Citations | The factors that affect the critical heat flux enhancement in the provided paper are the formation of Cu(OH)2 nanoneedles during the anodization process, which increases the wettability and wickability of the anodized surfaces compared to the plain surface. |
| The factors that affect the critical heat flux enhancement in subcooled flow boiling are the surfaces with hydrophilic nanoscale and micro-scale features, such as a surface coated with a porous layer of hydrophilic silica nanoparticles and a surface coated with zinc oxide nanowires. | |
| The factors that affect the critical heat flux enhancement in the study are the flow parameter and downstream distance. | |
| The paper discusses the use of electrowetting to enhance critical heat flux (CHF) in pool boiling. It mentions that factors such as the reduction in hydrodynamic wavelength and the refraining of bubble's lateral expansion contribute to CHF improvement. |
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