Journal of Heat Transfer: Recent submissions
Now showing items 801-820 of 3611
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Ultrafast Tunable Near-Field Radiative Thermal Modulator Made of Ge3Sb2Te6
(American Society of Mechanical Engineers (ASME), 2019)We show numerically the phase change material Ge3Sb2Te6 (GST) with special configuration as a heat modulator in the regime of near-field radiative heat transfer (NFRHT). The ability of GST to allow ultrafast reversible ... -
Energy Savings in Desalination Technologies: Reducing Entropy Generation by Transport Processes
(American Society of Mechanical Engineers (ASME), 2019)Desalination systems can be conceptualized as power cycles in which the useful work output is the work of separation of fresh water from saline water. In this framing, thermodynamic analysis provides powerful tools for ... -
A High Temperature Instrument for Consecutive Measurements of Thermal Conductivity, Electrical Conductivity, and Seebeck Coefficient
(American Society of Mechanical Engineers (ASME), 2019)A device for measuring a plurality of material properties is designed to include accurate sensors configured to consecutively obtain thermal conductivity, electrical conductivity, and Seebeck coefficient of a single sample ... -
Pseudoplasticity and Dynamic Interfacial Tension Relaxation Effects on Nucleate Pool Boiling in Aqueous Polymeric Liquids
(American Society of Mechanical Engineers (ASME), 2019)Nucleate pool boiling heat transfer and its ebullient dynamics in polymeric solutions at atmospheric pressure saturated conditions are experimentally investigated. Three grades of hydroxyethyl cellulose (HEC) are used, ... -
Generalized Solution for Two-Dimensional Transient Heat Conduction Problems With Partial Heating Near a Corner
(American Society of Mechanical Engineers (ASME), 2019)A generalized solution for a two-dimensional (2D) transient heat conduction problem with a partial-heating boundary condition in rectangular coordinates is developed. The solution accommodates three kinds of boundary ... -
Thermal Resistance Modeling of Oscillating Heat Pipes for Nanofluids by Artificial Intelligence Approach
(American Society of Mechanical Engineers (ASME), 2019)In this study, thermal resistance of a closed-loop oscillating heat pipe (OHP) is investigated using experimental tests and artificial intelligence methods. For this target, γFe2O3 and Fe3O4 nanoparticles are mixed with ... -
A New Perspective on Heat Transfer Mechanisms and Sonic Limit in Pool Boiling
(American Society of Mechanical Engineers (ASME), 2019)Pool boiling is postulated as a single-phase heat transfer process with nucleating bubbles providing a liquid pumping mechanism over the heater surface. This results in three fluid streams at the heater surface—outgoing ... -
Experimental Demonstration of the Effect of Magnetic Polaritons on the Radiative Properties of Deep Aluminum Gratings
(American Society of Mechanical Engineers (ASME), 2019)Despite the abundant theoretical studies of magnetic polaritons (MPs) in tailoring the radiative properties of nanostructures, experimental investigation of MPs in deep metal gratings is still lacking. This work experimentally ... -
Experimental Demonstration of the Effect of Magnetic Polaritons on the Radiative Properties of Deep Aluminum Gratings
(The American Society of Mechanical Engineers (ASME), 2019)Despite the abundant theoretical studies of magnetic polaritons (MPs) in tailoring the radiative properties of nanostructures, experimental investigation of MPs in deep metal gratings is still lacking. This work experimentally ... -
Linearization of Nongray Radiation Exchange: The Internal Fractional Function Reconsidered
(The American Society of Mechanical Engineers (ASME), 2019)The radiation fractional function is the fraction of black body radiation below a given value of λT. Edwards and others have distinguished between the traditional, or “external,” radiation fractional function and an ... -
Computational Modeling of Adiabatic Bubble Growth Dynamics From Submerged Capillary-Tube Orifices in Aqueous Solutions of Surfactants
(The American Society of Mechanical Engineers (ASME), 2019)The growth dynamics of isolated gas bubbles from a submerged capillary-tube orifice in a pool of an aqueous surfactant (sodium dodecyl sulfate or SDS) solution is computationally investigated. The governing equations for ... -
Nanofluid Dynamics of Flexible Polymeric Nanoparticles Under Wall Confinement
(The American Society of Mechanical Engineers (ASME), 2019)Describing the hydrodynamics of nanoparticles in fluid media poses interesting challenges due to the coupling between the Brownian and hydrodynamic forces at the nanoscale. We focus on multiscale formulations of Brownian ... -
Compartmentalization of Bioenergetic Substrate Delivery in Intact Cells
(The American Society of Mechanical Engineers (ASME), 2019)The intracellular production and transport of energetic substrate adenosine triphosphate (ATP) produced by mitochondria is dependent on multiple factors. These include local metabolic demand, mitochondrial motility and ... -
Pseudoplasticity and Dynamic Interfacial Tension Relaxation Effects on Nucleate Pool Boiling in Aqueous Polymeric Liquids
(The American Society of Mechanical Engineers (ASME), 2019)Nucleate pool boiling heat transfer and its ebullient dynamics in polymeric solutions at atmospheric pressure saturated conditions are experimentally investigated. Three grades of hydroxyethyl cellulose (HEC) are used, ... -
Influence of Copper Oxide on Femtosecond Laser Surface Processed Copper Pool Boiling Heat Transfer Surfaces
(The American Society of Mechanical Engineers (ASME), 2019)Pool boiling heat transfer with the use of femtosecond laser surface processing (FLSP) on copper surfaces has been studied. FLSP creates a self-organized micro/nanostructured surface. In the previous pool boiling heat ... -
Thermal Performance of Microelectronic Substrates With Submillimeter Integrated Vapor Chamber
(The American Society of Mechanical Engineers (ASME), 2019)We develop a vapor chamber integrated with a microelectronic packaging substrate and characterize its heat transfer performance. A prototype of vapor chamber integrated printed circuit board (PCB) is fabricated through ... -
A New Perspective on Heat Transfer Mechanisms and Sonic Limit in Pool Boiling
(The American Society of Mechanical Engineers (ASME), 2019)Pool boiling is postulated as a single-phase heat transfer process with nucleating bubbles providing a liquid pumping mechanism over the heater surface. This results in three fluid streams at the heater surface—outgoing ... -
Thermal–Hydraulic Performance Analysis of a Convergent Double Pipe Heat Exchanger
(The American Society of Mechanical Engineers (ASME), 2019)The present investigation proposes an innovative convergent double pipe heat exchanger (C-DPHE). A two-dimensional (2D) axisymmetric heat transfer model with counterflow is employed to analyze the thermal and hydraulic ... -
Frontiers, Fundamentals, and Future Directions of Transport: From Theory to Applications - A Special Issue Honoring Dr. P. S. Ayyaswamy
(The American Society of Mechanical Engineers (ASME), 2019) -
Diffusive Transport in the Vitreous Humor: Experimental and Analytical Studies
(The American Society of Mechanical Engineers (ASME), 2019)In relation to intravitreal drug delivery, predictive mathematical models for drug transport are being developed, and to effectively implement these for retinal delivery, the information on biophysical properties of various ...