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Convective heat transfer characteristics of toothed leaves
Oecologia, 1982Model leaves were used to test the hypothesis that serrate leaves have more convective heat loss than entire leaves of the same average size. Convection coefficients were positively correlated with size of teeth, supporting the hypothesis. Experimental results were in close agreement with theoretical predictions, which assumed an inverse correlation ...
Douglas E, Gottschlich, Alan P, Smith
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Statistical Identification of Satellites' Heat Transfer Characteristics
AIAA Journal, 1979A PROBLEM sometimes referred to as the backward analysis of heat transfer in a satellite is treated. Given heat quantities input and/or generated, and the component temperatures, the heat transfer coefficients (HTC) for conduction and radiation are sought.
K. SHODA, K. YONEDA
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Heat transfer characteristics of a helical heat exchanger
Applied Thermal Engineering, 2012Abstract Heat transfer performance of a helical heat exchanger was investigated. The heat exchanger is composed of a helical tube with rectangular cross section and two cover plates. The ɛ –Ntu relation of the heat exchanger was obtained using a numerical method. In the analysis, the flow in the tube (helical flow) was considered to be mixed and the
Jung-Yang San +2 more
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Heat transfer characteristics of a centrifugal heat sink
International Journal of Heat and Mass Transfer, 2013Abstract A novel heat sink, called a centrifugal heat sink, into which the blades of a fan are integrated between the fins, is proposed. The fan blades, based on design principles of centrifugal turbomachinery, are arranged to be placed between the fins of the circular heat sink. The rotary motion of the blades causes nearby coolant to be sucked into
Kim, JW Kim, Ju-Wan +1 more
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Convective heat transfer characteristics of nanofluids
Frontiers in Automobile and Mechanical Engineering -2010, 2010Convective heat transfer rate of traditional fluids are very lower than solid particles. The use of additives is a technique applied to enhance the heat transfer performance of base fluids. Suspension of millimeter or micrometer sized solid particles conduct more heat than the base liquids.
M Arulprakasajothi +3 more
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Investigation of the Heat Transfer Characteristics
Heat Transfer Engineering, 1995In the present study a numerical investigation of the heat transfer in an annular combustion chamber of a typical industrial gas turbine was done using a Galerkin-based finite-element solution of the problem. Results were obtained for three basic cases: constant flux incident on the entire combustion segment, constant flux in three quadrants of the ...
MARK S. COALMER, KAMBIZ VAFAI
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Heat Transfer Characteristics of Nano-Fluids
Materials Science Forum, 2013Nanofluids are engineered colloids made of a base fluid and nanoparticles, which become potential candidate for next generation heat transfer medium. Nanofluids have higher thermal conductivity and single-phase heat transfer coefficients than their base fluids. The use of additives is a technique applied to enhance the heat transfer performance of base
Ritu Gupta +2 more
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Characteristics of Transient Boiling Heat Transfer
10th International Conference on Nuclear Engineering, Volume 4, 2002In this paper, one dimensional inverse heat conduction solution is used for a measurement of pool boiling curve. The experiments are performed under atmospheric pressure for copper, brass, carbon steel and gold. Boiling curves, including unsteady transition boiling region, are found can be traced fairly well from a simple experiment system by solving ...
Wei Liu, Masanori Monde, Y. Mitsutake
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Heat Transfer Characteristics of Sports Apparel
Journal of ASTM International, 2004Abstract The protective clothing and equipment required for certain sports may inhibit heat loss from the body and contribute to potentially harmful heat stress injuries. This study measured the thermal resistance (insulation) and evaporative resistance of a variety of sports ensembles worn for football, basketball, baseball, soccer ...
J Zuo, EA McCullough
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