Journal of Heat Transfer: Recent submissions
Now showing items 2561-2580 of 3611
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Pool Boiling Heat Transfer on the International Space Station: Experimental Results and Model Verification
(The American Society of Mechanical Engineers (ASME), 2012)The relatively poor understanding of gravity effects on pool boiling heat transfer can be attributed to the lack of long duration high-quality microgravity data, g-jitter associated with ground-based ... -
An Experimental Investigation of Structured Roughness Effect on Heat Transfer During Single-Phase Liquid Flow at Microscale
(The American Society of Mechanical Engineers (ASME), 2012)The effect of structured roughness on the heat transfer of water flowing through minichannels was experimentally investigated in this study. The test channels were formed by two 12.7 mm wide ... -
Hydrocarbon Refrigerant Vaporization Inside a Brazed Plate Heat Exchanger
(The American Society of Mechanical Engineers (ASME), 2012)This paper presents the experimental heat transfer coefficients and pressure drop measured during HC-600a (isobutane), HC-290 (propane), and HC-1270 (propylene) vaporization inside a brazed plate ... -
Hydrodynamic and Thermal Characteristics of Combined Electroosmotic and Pressure Driven Flow in a Microannulus
(The American Society of Mechanical Engineers (ASME), 2012)The present study considers both the hydrodynamic and thermal characteristics of combined electroosmotic and pressure driven flow in a microannulus. Analytical solutions are presented using the ... -
Effect of Uncertainties in Physical Properties on Entropy Generation Between Two Rotating Cylinders With Nanofluids
(The American Society of Mechanical Engineers (ASME), 2012)In this paper, the effects of uncertainties in physical properties on predicting entropy generation for a steady laminar flow of Al2 O3 –ethylene glycol nanofluid (0≤φ≤6 %) between two concentric ... -
Performance Evaluation of a Novel Film-Cooling Hole
(The American Society of Mechanical Engineers (ASME), 2012)This paper presents a numerical investigation of the film-cooling performance of a novel film-cooling hole in comparison with a fan-shaped hole. The novel shaped hole is designed to increase ... -
Heat Transfer Enhancement From a Blade Tip-Cap Using Metal Foams
(The American Society of Mechanical Engineers (ASME), 2012)3D numerical results are presented to compare the heat transfer augmentation from a plate by using pin fins and metal foams. It is observed that maximizing the inlet velocity and pores per ... -
Double Diffusive Magneto-Convection Fluid Flow in a Strong Cross Magnetic Field With Uniform Surface Heat and Mass Flux
(The American Society of Mechanical Engineers (ASME), 2012)In this study, magnetohydrodynamic natural convection boundary layer flow of an electrically conducting and viscous incompressible fluid along a heated vertical flat plate with uniform heat and ... -
Thermal Analysis of a Water-Filled Micro Heat Pipe With Phase-Change Interfacial Resistance
(The American Society of Mechanical Engineers (ASME), 2012)The progressive evaporation and condensation processes in a micro heat pipe, with which high heat fluxes at the liquid–vapor interface are associated, render it a device of high thermal ... -
Exact Solution of Unsteady Conductive Heat Transfer in Cylindrical Composite Laminates
(The American Society of Mechanical Engineers (ASME), 2012)This paper presents an exact analytical solution for unsteady conductive heat transfer in a cylindrical multilayer composite laminate. Here, it is supposed that fibers have been wound around the ... -
Numerical Simulation of Microdroplet Impact and Evaporation on a Solid Surface
(The American Society of Mechanical Engineers (ASME), 2012)Microdroplet impact and evaporation on a solid surface, which is an integral part of an inkjet printing process, is studied numerically by solving the equations governing the conservation of ... -
Mixed Convection Falkner–Skan Flow of a Maxwell Fluid
(The American Society of Mechanical Engineers (ASME), 2012)We performed a study for the effect of Newtonian heating on the nonsimilar mixed convection Falkner–Skan flow of a Maxwell fluid. Transformation procedure is adopted in obtaining the ordinary ... -
Mechanistic Study of Subatmospheric Pressure, Subcooled, Flow Boiling of Water on Structured-Porous Surfaces
(The American Society of Mechanical Engineers (ASME), 2012)Subcooled flow boiling experiments with water at 0.2-atm pressure assess the utility of fine filament screen laminate enhanced surfaces as high-performance boiling surfaces. Experiments are conducted ... -
Residence Time and Heat Transfer When Water Droplets Hit a Scalding Surface
(The American Society of Mechanical Engineers (ASME), 2012)We study, using pump-probe optical methods with a time resolution of 1 ms, heat transfer when a series of water droplets impact a smooth surface whose temperature exceeds the boiling point. ... -
A Continuum Approach to Thermomass Theory
(The American Society of Mechanical Engineers (ASME), 2012)A continuum approach to the thermomass theory for nonlinear heat transport is developed and its compatibility with the general framework of continuum thermodynamics is investigated. The heat flux ... -
Meshless Local Petrov-Galerkin Method for Three-Dimensional Heat Transfer Analysis
(The American Society of Mechanical Engineers (ASME), 2012)A meshless local Petrov-Galerkin (MLPG) method is proposed to obtain the numerical solution of nonlinear heat transfer problems. The moving least squares scheme is generalized to construct the ... -
Solution of the Radiative Transfer Equation in Three-Dimensional Participating Media Using a Hybrid Discrete Ordinates: Spherical Harmonics Method
(The American Society of Mechanical Engineers (ASME), 2012)In this article, a new hybrid solution to the radiative transfer equation (RTE) is proposed. Following the modified differential approximation (MDA), the radiation intensity is first split into ... -
Measurement of Total Hemispherical Emissivity Using Vacuum Guarded Hot Plate
(The American Society of Mechanical Engineers (ASME), 2012)In this paper, a new measurement method for the total hemispherical emissivity of surfaces is introduced. A vacuum guarded hot plate apparatus is developed and it is employed for the emissivity ... -
Experimental Validation for the dp/dt Assumption of Heat Exchangers in Vapor Compression Refrigeration Cycles
(The American Society of Mechanical Engineers (ASME), 2012)Calculation of time derivatives of refrigerant pressures is important for dynamic simulation of heat exchangers in vapor compression cycles, i.e., typically the condenser and evaporator. This ... -
Thermal Property Measurements of Reactive Materials: The Macroscopic Behavior of a Nanocomposite
(The American Society of Mechanical Engineers (ASME), 2012)This study experimentally examined the thermal properties of reactive materials that are a composite of fuel and oxidizer particles. Three reactive materials were selected: aluminum (Al) with ...