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Numerical Investigation of the Cooling Performance of Microchannel Heat Sinks under Uniform and Non-Uniform Heating Conditions

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Radio frequency heating of corn flour: Heating rate and uniformity

Innovative Food Science and Emerging Technologies, 2017
Abstract Non-uniform heating is a major challenge for using radio frequency (RF) heat treatment in pasteurization of low moisture food products. The objective of this study was to evaluate the effect of different electrode gaps, moisture content (MC), bulk density and surrounding materials on RF heating uniformity and rate in corn flour. Additionally,
Samet ÖztÜrk, Fanbin Kong
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Uniform Channel Micro Heat Exchangers

Journal of Electronic Packaging, 1997
The performance characteristics of micro heat exchangers consisting of straight channels fabricated in a silicon wafer and operating with liquid nitrogen are evaluated theoretically. The three-dimensional conjugate temperature and flow fields are calculated numerically.
X. Yin, H. H. Bau
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CFD prediction of critical heat flux in vertical heated tubes with uniform and non-uniform heat flux

Nuclear Engineering and Design, 2018
Abstract In this paper, Eulerian Two-fluid model coupled with extended wall boiling model was used to simulate the departure from nucleate boiling (DNB) in vertical heated tubes under high pressures by using STAR-CCM+ 10.04. Based on CFD approach, new methods were developed to predict the critical heat flux (CHF) in both uniform and non-uniform ...
Quan Li, M. Avramova, Yongjun Jiao, Ping Chen, Junchong Yu, Zengping Pu, Jie Chen   +6 more
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Heat Balance Limits in Football Uniforms

The Physician and Sportsmedicine, 2002
Football season becomes a danger zone when warm weather collides with the need for protective gear. Researchers determined critical heat balance limits in non-heat-acclimatized men who wore various football uniform ensembles. The air temperature and humidity limits that they identified are helpful in implementing strategies to prevent heat-related ...
Tasha J, Kulka, W Larry, Kenney
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Uniform and Non-uniform Thermoelement Subject to Lateral Heat Convection

International Journal of Thermophysics, 2013
A general energy equation of quasi-one-dimensional heat flow in a longitudinal thermoelement (TE) of a curved side that is subjected to an electric field and convection heat transfer on the curved surface is developed. The energy equation is solved for the temperature distribution in two cases; uniform cross-section TE and non-uniform cross-section TE.
Amar Hasan Hameed, Raed Kafafy
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Temperature distributions in fins with uniform and non-uniform heat generation and non-uniform heat transfer coefficient

International Journal of Heat and Mass Transfer, 1987
Abstract Temperature distributions in a straight fin of rectangular profile (or in a cylindrical fin) with uniform and non-uniform internal heat-generation characteristics and non-uniform heat transfer coefficients are derived analytically. The heat transfer coefficient is assumed to be a power function of the difference between the temperature of ...
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Design of internally heat-integrated distillation column (HIDiC): Uniform heat transfer area versus uniform heat distribution

Energy, 2010
The internally heat-integrated distillation column (HIDiC) is a complex column configuration which is more energy efficient than the equivalent conventional column or the distillation column with direct vapor recompression scheme (VRC). Exploiting the heat integration between two diabatic sections operating at different pressures of the HIDiC can ...
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Thermoconcentration convection under uniform lateral heating

Fluid Dynamics, 1995
The fine structure of thermoconvective flow near an inclined- plane heat source within a fluid with a stable density stratification due to salinity gradient is investigated using optical and probe techniques. The time dependence of the parameters of optical refraction coefficient gradient, specific electric conductivity, velocity and temperature fields
V. V. Levitskii, Yu. D. Chashechkin
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Comparison of Turbulent Heat-Transfer Results for Uniform Wall Heat Flux and Uniform Wall Temperature

Journal of Heat Transfer, 1960
The purpose of this note is to examine in a more precise way how the Nusselt numbers for turbulent heat transfer in both the fully developed and thermal entrance regions of a circular tube are affected by two different wall boundary conditions. The comparisons are made for: (a) Uniform wall temperature (UWT); and (b) uniform wall heat flux (UHF ...
R. Siegel, E. M. Sparrow
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