Journal of Heat Transfer: Recent submissions
Now showing items 2541-2560 of 3611
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Application of Two Bayesian Filters to Estimate Unknown Heat Fluxes in a Natural Convection Problem
(The American Society of Mechanical Engineers (ASME), 2012)Sequential Monte Carlo (SMC) or particle filter methods, which have been originally introduced in the beginning of the 1950s, became very popular in the last few years in the statistical and ... -
An Experimental and Numerical Investigation on the Thermal-Hydraulic Performance of Double Notched Plate
(The American Society of Mechanical Engineers (ASME), 2012)The double notched (DN) plate is commonly used in rotary air preheaters, but relevant investigations are rare. Thus, thermal-hydraulic performances of the DN plate are investigated in this paper. ... -
Effect of Flow Pulsation on the Heat Transfer Performance of a Minichannel Heat Sink
(The American Society of Mechanical Engineers (ASME), 2012)Heat sinks with liquid forced convection in microchannels are targeted for cooling electronic devices with a high dissipated power density. Given the inherent stability problems associated with ... -
Heat Conduction Through Eccentric Annuli: An Appraisal of Analytical, Semi-Analytical, and Approximate Techniques
(The American Society of Mechanical Engineers (ASME), 2012)The problem of conduction heat transfer through an eccentric annulus with the inner surface kept at a constant temperature and the outer surface subjected to convective condition is solved by ... -
Double Diffusion From a Heated Sphere in an Infinite Porous Medium
(The American Society of Mechanical Engineers (ASME), 2012)Free convective heat and mass transfer from a sphere of constant temperature and concentration buried in an unbounded porous medium is studied analytically assuming the validity of the Darcy ... -
Adiabatic Wall Temperature Evaluation in a High Speed Turbine
(The American Society of Mechanical Engineers (ASME), 2012)Engine development requires accurate estimates of the heat loads. Estimates of the convective heat fluxes are particularly vital to assess the thermomechanical integrity of the turbomachinery ... -
A Simplified Method for Calculating Heat Transfer Coefficients and Friction Factors in Laminar Pipe Flow of Non-Newtonian Fluids
(The American Society of Mechanical Engineers (ASME), 2012)In this work, we propose an approximate methodology to estimate the Nusselt number and friction factor in fully developed non-Newtonian laminar flow in circular pipes for a constant wall heat ... -
Erratum: “Water-Heated Pool Boiling of Different Refrigerants on the Outside Surface of a Horizontal Smooth Tube” [ASME Journal of Heat Transfer, 2012, 134, 021502]
(The American Society of Mechanical Engineers (ASME), 2012)In the paper [1], the author presented heat transfer coefficients during pool boiling of five different refrigerants (R123, R245fa, R236fa, R134a, and R22) on the outside surface of a horizontal ... -
Permeability and Thermal Conductivity of Compact Adsorbent of Salts for Sorption Refrigeration
(The American Society of Mechanical Engineers (ASME), 2012)Properties, such as thermal conductivity and permeability, are important for the heat and mass transfer performance in sorption refrigeration. This Technical Brief investigates the thermal conductivity ... -
Convective Heat Transfer in Microchannels of Noncircular Cross Sections: An Analytical Approach
(The American Society of Mechanical Engineers (ASME), 2012)Analytical solutions are presented for velocity and temperature distributions of laminar fully developed flow of Newtonian, constant property fluids in micro/minichannels of hyperelliptical and ... -
Specific Absorption Rate and Temperature Increase in Human Eye Subjected to Electromagnetic Fields at 900 MHz
(The American Society of Mechanical Engineers (ASME), 2012)Human eye is one of the most sensitive parts of the entire human body when exposed to electromagnetic fields. These electromagnetic fields interact with the human eye and may lead to cause ... -
Spectral Features of an Omnidirectional Narrowband Emitter
(The American Society of Mechanical Engineers (ASME), 2012)A microscale-structured surface consisting of heavily doped silicon rectangle grating and slotted silver layer is studied for omnidirectional narrowband emitter. Numerical simulation is implemented ... -
Enhanced Thermal Transport in Microchannel Using Oblique Fins
(The American Society of Mechanical Engineers (ASME), 2012)Sectional oblique fins are employed, in contrast to continuous fins in order to modulate the flow in microchannel heat sinks. The breakage of a continuous fin into oblique sections leads to ... -
Specification of Micro-Nanoscale Radiative Patterns Using Inverse Analysis for Increasing Solar Panel Efficiency
(The American Society of Mechanical Engineers (ASME), 2012)This work proposes a comprehensive and efficient optimization approach for designing surface patterning for increasing solar panel absorption efficiency using near-field radiation effects. Global ... -
Scaling of Thermal Positioning in Microscale and Nanoscale Bridge Structures
(The American Society of Mechanical Engineers (ASME), 2012)Heat transfer in a thermally positioned doubly clamped bridge is simulated to obtain a universal scaling for the behavior of microscale and nanoscale bridge structures over a range of dimensions, ... -
Schemes for and Mechanisms of Reduction in Thermal Conductivity in Nanostructured Thermoelectrics
(The American Society of Mechanical Engineers (ASME), 2012)Nonequilibrium molecular dynamics (NEMD) simulations were performed to investigate schemes for enhancing the energy conversion efficiency of thermoelectric nanowires (NWs), including (1) roughening ... -
Similarity Solution for Unsteady Free Convection From a Vertical Plate at Constant Temperature to Power Law Fluids
(The American Society of Mechanical Engineers (ASME), 2012)The transformation group theoretic approach is applied to perform an analysis of unsteady free convection flow over a vertical flat plate immersed in a power law fluid. The thermal boundary ... -
Effect of Magnetic Field on Heat Transfer in Non-Newtonian Nanofluids Over a Nonisothermal Stretching Wall
(The American Society of Mechanical Engineers (ASME), 2012)In this study, the effects of magnetic field on combined heat and mass transfer in non-Newtonian nanofluids over a stretching surface with prescribed wall temperature and uniform surface ... -
Analytical Solution of the Graetz Problem Extended to Slip-Flow in Microtube
(The American Society of Mechanical Engineers (ASME), 2012)The original Graetz problem is extended to slip-flow in microtube. The extended Graetz problem in slip-flow with the isothermal boundary condition on the wall was solved using conventional energy ... -
Nonlinear Thermal Instability in a Rotating Viscous Fluid Layer Under Temperature/Gravity Modulation
(The American Society of Mechanical Engineers (ASME), 2012)In the present paper, the effect of time-periodic temperature/gravity modulation on the thermal instability in a rotating viscous fluid layer has been investigated by performing a weakly nonlinear ...