..., Suite 500, Waltham, MA 02451. 1 Corresponding author. e-mails:  sivarara@mail.uc.edu ; Karthik.Remella@ansys.com e-mail:  Frank.Gerner@uc.edu 07 09 2021 21 07 2022 23 08 2022 thin-film evaporation model liquid–vapor meniscus capillary pressure phase change screen...

... of water vapor condensation phenomena were experimentally studied on a vertically aligned smooth copper substrate for a range of pressures and temperatures for two different liquid wettability conditions. The heat transfer performance is dominated by the phase change process at the solid–vapor interface...

... = dimensionless parameter, Eq. (20) ρ = density, kg/m 3 ρ T = ( d ρ v / d T v ) σ = surface tension, N/m ω = frequency, kHz Subscripts b = bubble c = condensation fg = phase change from liquid to vapor l...

...), the method used here exploits a direct nonlinear numerical model associated with a parameter estimation technique to determine temperature dependent thermal conductivities. It has been applied to a water-agar gel during phase change and the thermal conductivities within the corresponding temperature interval...

.... The numerical model is based on the one-fluid mixture approach combined with the single-domain enthalpy porosity model for phase change, and it is implemented in fluent software package. The linear dependence of the liquidus and solidus temperatures with the concentration of the nanoparticles was assumed...

... micro/mini heat pipes and their wick structures. In this article, silicon wick structures, composed of cylindrical pillars 320  μ m in height and 30–100  μ m in diameter, are developed for studies of phase change capability. Fabrication of the silicon wick structures utilizes the standard...

... conditions and the heat flux applied. A single-phase correlation was developed to capture the low heat flux response, and the two-phase results were well-correlated by a pool boiling correlation. A new general correlation for jet impingement heat transfer with phase change is presented combining...

... . 10.1016/j.apsusc.2005.07.053 [24] Xu , X. , and Willis , D. A. , 2002 , “ Non-Equilibrium Phase Change in Metal Induced by Nanosecond Pulsed Laser Irradiation ,” ASME J. Heat Transfer , 124 , pp. 293 – 298 . 10.1115/1.1445792 [25] Stafe , M. , Vladoiu , I . , and Popescu...

... condensation on the tube surface under different conditions are included in the paper. Marangoni condensation steam-ethanol mixture heat transfer mass transfer phase change heat-transfer enhancement Condensation of vapor mixtures has been widely studied for many years. In most cases...

...Liwu Fan; J. M. Khodadadi Highly-conductive nanostructures may be dispersed into phase change materials (PCM) to improve their effective thermal conductivity, thus leading to colloidal systems that are referred to as nanostructure-enhanced PCM (NePCM). Results of a theoretical and experimental...

... agreement between the two curves confirms that the total heat transfer withdrawn from the substrate is used for heat transfer associated with phase transformation. The phase-change enthalpy is not taken from the surrounding air. The heat flux withdrawn is thus the product of the phase-change enthalpy...

... dominated models. The results emphasize that natural convection has a critical effect in actual phase change processes. confined flow heat conduction ice natural convection solidification water phase change solidification natural convection density inversion numerical analysis...

... ,” Europhys. Lett. , 29 ( 6 ), pp. 457 – 462 . 10.1209/0295-5075/29/6/005 47 Carey , V. P. , 2007 , Liquid-Vapor Phase-Change Phenomena , 2nd ed. , Taylor & Francis , London . 48 Chow , L. C. , Sehmbey , M. S. , and Pais , M. R. , 1997 , “ High Heat Flux Spray...

... flow visualisation heat transfer liquid films microchannel flow organic compounds two-phase flow viscosity water microlayer microchannel phase change laser extinction method Boiling in mini-/microscale channels is becoming increasingly important in many diverse applications...

... a solid wall reveals that the presence of the solid wall induces a change in the phase change heat transport by the working fluid, besides facilitating axial heat conduction in the solid wall. The analysis also highlights the effects of the thickness and thermal conductivity of the solid wall on its axial...

... surfaces with enhanced boiling heat transfer performance and novel phase-change based micro-actuators and energy harvesters. Dhir , V. K. , 2006 , “ Mechanistic Prediction of Nucleate Boiling Heat Transfer-Achievable or a Hopeless Task? ” ASME J. Heat Transfer 0022-1481 , 128 ( 1 ), pp. 1...

...Ali Siahpush; James O’Brien; John Crepeau A detailed experimental and analytical study has been performed to evaluate how copper porous foam (CPF) enhances the heat transfer performance in a cylindrical solid/liquid phase change thermal energy storage system. The CPF used in this study had a 95...

... transfer pore diffusion MEMS nanotechnology membrane polymers soft materials evaporation nonboiling evaporative cooling phase change surface interface thermal management systems integration Microtrusses, also known as microframes ( 1 ), are polymeric sheetlike structures whose...

... and subcooled water flowing in opposite directions. The transport equations for the two fluids are alternately solved in separate domains and then coupled at the interface by imposing mass, momentum, and energy jump conditions with phase change. The effects induced by changes in the interfacial shear were...

..., the heat conduction inside the porous medium is suppressed. Also, the liquid saturation distribution in Fig. 8 denotes that a vapor generating region, i.e., the two-phase region, becomes smaller both in the radial and axial directions with increasing inlet flow velocity, which means that the phase change...