Journal of Heat Transfer: Recent submissions
Now showing items 2241-2260 of 3611
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Numerical Simulation of Pool Boiling: A Review
(The American Society of Mechanical Engineers (ASME), 2013)A review of numerical simulation of pool boiling is presented. Details of the numerical models and results obtained for single bubble, multiple bubbles, nucleate boiling, and film boiling are provided. The effect of such ... -
Thermal Processing of Biological Tissue at High Temperatures: Impact of Protein Denaturation and Water Loss on the Thermal Properties of Human and Porcine Liver in the Range 25–80 آ°C
(The American Society of Mechanical Engineers (ASME), 2013)Biothermal engineering applications impose thermal excursions on tissues with an ensuing biological outcome (i.e., life or death) that is tied to the molecular state of water and protein in the system. The accuracy of heat ... -
Fundamental Roles of Nonevaporating Film and Ultrahigh Heat Flux Associated With Nanoscale Meniscus Evaporation in Nucleate Boiling
(The American Society of Mechanical Engineers (ASME), 2013)The threephase moving contact line present at the base of a bubble in nucleate boiling has been a widely researched topic over the past few decades. It has been traditionally divided into three regions: nonevaporating film ... -
The Effect of Tear Film on Ocular Surface Temperature: A Thermodynamic Study
(The American Society of Mechanical Engineers (ASME), 2013)The thermodynamic effect of tear film on ocular surface remains ambiguous in literature, though in general it is considered to warm the surface in blinking phase, and cool it at later stage. In this investigation, we modeled ... -
Measuring Transport Coefficients in Heterogeneous and Hierarchical Heat Transfer Devices
(The American Society of Mechanical Engineers (ASME), 2013)Experimental determination of transport coefficients, in particular internal heat transfer coefficients, in heterogeneous and hierarchical heat transfer devices such as compact heat exchangers and high surface density heat ... -
Note on a New Blackbody Fraction Function Used for Surfaces With a Linear Emissivity in a Wavelength Interval
(The American Society of Mechanical Engineers (ASME), 2013)In this note, a new blackbody radiation fraction function is proposed for calculating the emissive power or total emissivity of a surface that has an emissivity depending linearly on wavelength in a wavelength interval. ... -
Advances in Fluid and Thermal Transport Property Analysis and Design of Sintered Porous Wick Microstructures
(The American Society of Mechanical Engineers (ASME), 2013)Sintered porous structures are ubiquitous as heat transport media for thermal management and other applications. In particular, lowporosity sintered packed beds are used as capillarywicking and evaporationenhancement ... -
An Historical and Topical Note on Convection in Porous Media
(The American Society of Mechanical Engineers (ASME), 2013)This note deals with three main themes. The first is a discussion of the early literature on convection in porous media. The second is a brief overview of current analytical modeling of singlephase convection in saturated ... -
On the Anomalous Convective Heat Transfer Enhancement in Nanofluids: A Theoretical Answer to the Nanofluids Controversy
(The American Society of Mechanical Engineers (ASME), 2013)A theoretical answer to the controversial issue on the anomalous convective heat transfer in nanofluids has been provided, exploiting the Buongiorno model for convective heat transfer in nanofluids with modifications to ... -
Keeping Smartphones Cool With Gallium Phase Change Material
(The American Society of Mechanical Engineers (ASME), 2013)With many emerging capabilities in pervasive computing, internet access, wireless communication, and data processing, the smartphone with high central processing unit (CPU) frequency is achieving extremely high running ... -
Quantitative Assessment of the Overall Heat Transfer Coefficient U
(The American Society of Mechanical Engineers (ASME), 2013)This investigation was performed in order to quantify the validity of the assumed constancy of the overall heat transfer coefficient U in heat exchanger design. The prototypical twofluid heat exchanger, the doublepipe ... -
Sizing of Molybdenum Nanoparticles Using Time Resolved Laser Induced Incandescence
(The American Society of Mechanical Engineers (ASME), 2013)Aerosolized metal nanoparticles have numerous existing and emerging applications in materials science, but their functionality in these roles is strongly sizedependent. Very recently, timeresolved laserinduced incandescence ... -
Jet Impingement Heat Transfer Using Air Laden Nanoparticles With Encapsulated Phase Change Materials
(The American Society of Mechanical Engineers (ASME), 2013)Nanoparticles made of polymer encapsulated phase change materials (PCM) are added in air to enhance the heat transfer performance of air jet impingement flows applied to cooling processes. Encapsulation prevents agglomeration ... -
Enhanced Critical Heat Flux During Quenching of Extremely Dilute Aqueous Colloidal Suspensions With Graphene Oxide Nanosheets
(The American Society of Mechanical Engineers (ASME), 2013)In this Technical Brief, we report on preliminary results of an experimental investigation of quenching of aqueous colloidal suspensions with graphene oxide nanosheets (GONs). Extremely dilute suspensions with only 0.0001% ... -
Flow and Heat Transfer Characteristics of Single Jet Impinging on Dimpled Surface
(The American Society of Mechanical Engineers (ASME), 2013)Based on combined particle image velocimetry (PIV) and numerical simulation, the flow and heat transfer characteristics of a single jet impinging on a dimpled surface for Dj/D = 0.318, 0.5, 1.045; خ´/D = 0.1, 0.2, ... -
Laminar Flow Forced Convection Heat Transfer Behavior of a Phase Change Material Fluid in Microchannels
(The American Society of Mechanical Engineers (ASME), 2013)In this paper, a phase change material (PCM) fluid (Neicosane) is compared with pure water as heat transfer fluid. The heat transfer behavior of PCM fluid under laminar flow conditions (Reynolds number of 700) in circular ... -
A Model of Transient Heat and Mass Transfer in a Heterogeneous Medium of Ceria Undergoing Nonstoichiometric Reduction
(The American Society of Mechanical Engineers (ASME), 2013)The redox chemistry of nonstoichiometric metal oxides can be used to produce chemical fuels by harnessing concentrated solar energy to split water and/or carbon dioxide. In such a process, it is desirable to use a porous ... -
Numerical Simulation of the Effect of the Size of Suspensions on the Solidification Process of Nanoparticle Enhanced Phase Change Materials
(The American Society of Mechanical Engineers (ASME), 2013)Nanostructureenhanced phase change materials (NePCM) have been widely studied in recent years due to their enhanced thermal conductivity and improved charge/discharge in thermal energy storage applications. In this study, ... -
Boundary Layer Stagnation Point Flow Toward a Stretching/Shrinking Sheet in a Nanofluid
(The American Society of Mechanical Engineers (ASME), 2013)An analysis is carried out to study the steady twodimensional stagnationpoint flow of a nanofluid over a stretching/shrinking sheet in its own plane. The stretching/shrinking velocity and the ambient fluid velocity are ... -
Magnetohydrodynamics Thermocapillary Marangoni Convection Heat Transfer of Power Law Fluids Driven by Temperature Gradient
(The American Society of Mechanical Engineers (ASME), 2013)This paper presents an investigation for magnetohydrodynamics (MHD) thermocapillary Marangoni convection heat transfer of an electrically conducting powerlaw fluid driven by temperature gradient. The surface tension is ...