Journal of Heat Transfer: Recent submissions
Now showing items 2361-2380 of 3611
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On the Scaling of Pool Boiling Heat Flux With Gravity and Heater Size
(The American Society of Mechanical Engineers (ASME), 2012)A framework for scaling pool boiling heat flux is developed using data from various heater sizes over a range of gravity levels. Boiling is buoyancy dominated for large heaters and/or high ... -
Boundary Control of Temperature Distribution in a Spherical Shell With Spatially Varying Parameters
(The American Society of Mechanical Engineers (ASME), 2012)This paper presents a solution to the control (stabilization) problem of temperature distribution in spherical shells with spatially varying properties. The desired temperature distribution satisfies ... -
Design Optimization of Electrical Power Contact Using Finite Element Method
(The American Society of Mechanical Engineers (ASME), 2012)Automotive connectors in modern car generations are submitted to high current; this can cause many problems and requires the minimization of their electrical contact resistances. The new major ... -
Simulation of Mist Film Cooling on Rotating Gas Turbine Blades
(The American Society of Mechanical Engineers (ASME), 2012)Film cooling techniques have been successfully applied to gas turbine blades to protect them from the hot flue gas. However, a continuous demand of increasing the turbine inlet temperature to ... -
Heat Transfer Between Colliding Surfaces and Particles
(The American Society of Mechanical Engineers (ASME), 2012)Collisional heat transfer between two contacting curved surfaces is investigated computationally using a finite difference method and analytically using various asymptotic methods. Transformed ... -
Flow Modes and Mode Transitions for Falling Films on Flat Tubes
(The American Society of Mechanical Engineers (ASME), 2012)Flow mode transitions for a liquid film falling over flat tubes are studied for a wide range of conditions. Hydraulic oil, ethylene glycol, ethylene-glycol-water mixtures (at three different ... -
Discussion: “Heat Transfer Mechanisms During Flow Boiling in Microchannels” (Kandlikar, S. G., 2004, ASME J. Heat Transfer, 126(1), pp. 8–16)
(The American Society of Mechanical Engineers (ASME), 2012)In the paper Kandlikar, S. G., 2004, “Heat Transfer Mechanisms During Flow Boiling in Microchannels,” ASME J. Heat Transfer, 126 (1), pp. 8–16, Kandlikar [1] derived two new nondimensional ... -
Closure to “Discussion of ‘Heat Transfer Mechanisms During Flow Boiling in Microchannels’ ” (2012, ASME J. Heat Transfer, 134 , p. 015501)
(The American Society of Mechanical Engineers (ASME), 2012)The interrelations among different nondimensional groups shown by M. M. Awad are quite correct. The insight provided by the author is very much appreciated. -
Flow and Heat Transfer in Microchannels With Dimples and Protrusions
(The American Society of Mechanical Engineers (ASME), 2012)Flow characteristics and heat transfer performances in a rectangular microchannel with dimples/protrusions are studied numerically in this research. The height and the width of the microchannel ... -
Radiation Properties of Oxygen-Enhanced Normal and Inverse Diffusion Flames
(The American Society of Mechanical Engineers (ASME), 2012)Radiative heat transfer in oxygen-enhanced inverse flame configurations is an important area of study for fundamental combustion research and for terrestrial and spacecraft fire safety. Motivated ... -
A Review on Critical Heat Flux Enhancement With Nanofluids and Surface Modification
(The American Society of Mechanical Engineers (ASME), 2012)Recently, there has been increasing interest in boiling nanofluids and their applications. Among the many articles that have been published, the critical heat flux (CHF) of nanofluids has drawn ... -
Prediction and Measurement of Thermal Transport Across Interfaces Between Isotropic Solids and Graphitic Materials
(The American Society of Mechanical Engineers (ASME), 2012)Due to the high intrinsic thermal conductivity of carbon allotropes, there have been many attempts to incorporate such structures into existing thermal abatement technologies. In particular, carbon ... -
Numerical Investigation of Heat Transfer in Rectangular Microchannels Under H2 Boundary Condition During Developing and Fully Developed Laminar Flow
(The American Society of Mechanical Engineers (ASME), 2012)Study of fluid flow characteristics at microscale is gaining importance with shrinking device sizes. Better understanding of fluid flow and heat transfer in microchannels will have important ... -
Water-Heated Pool Boiling of Different Refrigerants on the Outside Surface of a Horizontal Smooth Tube
(The American Society of Mechanical Engineers (ASME), 2012)Pool boiling heat transfer has been extensively studied over decades, but the effect of boundary heating conditions on boiling received little attention. In this work, heat transfer coefficients ... -
Wetting Mode Evolution of Steam Dropwise Condensation on Superhydrophobic Surface in the Presence of Noncondensable Gas
(The American Society of Mechanical Engineers (ASME), 2012)It is well known that heat transfer in dropwise condensation (DWC) is superior to that in filmwise condensation (FWC) by at least one order of magnitude. Surfaces with larger contact angle ... -
Investigations of Biporous Wick Structure Dryout
(The American Society of Mechanical Engineers (ASME), 2012)Dryout in a heat pipe evaporator is caused by insufficient condensate supply through the wick structure. Dryout is generally considered a failure of the heat pipe operation. However, traditional ... -
Flow Boiling Characteristics for R1234ze(E) in 1.0 and 2.2 mm Circular Channels
(The American Society of Mechanical Engineers (ASME), 2012)Experimental flow boiling heat transfer results are presented for horizontal 1.0 and 2.2 mm I.D. (internal diameter) stainless steel tubes for tests with R1234ze(E), a new refrigerant developed ... -
Submerged Jet Impingement Boiling of Water Under Subatmospheric Conditions
(The American Society of Mechanical Engineers (ASME), 2012)An experimental study of jet impingement boiling is presented for water under saturated and subcooled conditions. Unique to this study is the documentation of boiling curves of a submerged water ... -
Heat Transfer to Suspensions of Microencapsulated Phase Change Material Flowing Through Minichannels
(The American Society of Mechanical Engineers (ASME), 2012)The heat transfer to water-based suspensions of microencapsulated phase change material (MEPCM) flowing laminarly through rectangular copper minichannels was investigated both experimentally and ... -
Gas Microflows in the Slip Flow Regime: A Critical Review on Convective Heat Transfer
(The American Society of Mechanical Engineers (ASME), 2012)Accurate modeling of gas microvection is crucial for a lot of MEMS applications (microheat exchangers, pressure gauges, fluidic microactuators for active control of aerodynamic flows, mass flow ...