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RISNonlocal Modeling and Swarm Based Design of Heat Sinks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cooling electronic chips to satisfy the everincreasing heat transfer demands of the electronics industry is a perpetual challenge. One approach to addressing this is through improving the heat rejection ability of aircooled ...
A Numerical Investigation of Turbulent Flow and Heat Transfer in Rectangular Channels With Elliptic Scale Roughened Walls
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present paper, rectangular channels with six types of elliptic scaleroughened walls for heat transfer enhancement are numerically studied. Heat transfer and fluid flow characteristics for sixteen different scaleroughened ...
Utilization of Pore Size Distributions to Predict Thermophysical Properties and Performance of Biporous Wick Evaporators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A sintered copper porous medium is an extremely effective structure used to enhance the evaporative heat transfer properties of a heat pipe. It provides both capillary pressure to passively draw liquid in and increased ...
Passivation and Performance of Inorganic Aqueous Solutions in a Grooved Aluminum Flat Heat Pipe
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Aluminum heat pipes have traditionally been incompatible with water and waterbased fluids because they quickly react to generate noncondensable hydrogen gas (NCG). Two different inorganic aqueous solutions (IAS) are tested ...
Investigation of the Use of an Inorganic Aqueous Solution in Aluminum-Made Phase-Change Heat Transfer Devices
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An inorganic aqueous solution, known as IAS, has shown its compatibility with aluminum phase-change heat transfer devices. When using IAS in aluminum devices, aluminum prefers to react with the two oxidizers, permanganate ...
Investigation of the Use of an Inorganic Aqueous Solution in Copper-Made Phase-Change Heat Transfer Devices
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel inorganic aqueous solution (IAS) is shown to have a better heat transfer performance than water when used as the working fluid in copper-made phase-change heat transfer devices. First, the physical properties of ...
Internal Transport Coefficient Measurements in Random Fiber Matrix Heat Exchangers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental determination of transport coefficients, in particular internal heat transfer coefficients, in heterogeneous and hierarchical heat transfer devices such as compact regenerative heat exchangers has posed a ...
Measuring Transport Coefficients in Heterogeneous and Hierarchical Heat Transfer Devices
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental determination of transport coefficients, in particular internal heat transfer coefficients, in heterogeneous and hierarchical heat transfer devices such as compact heat exchangers and high surface density heat ...
Genetic Algorithm Optimization of a Finned Tube Heat Exchanger Modeled With Volume Averaging Theory
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes and implements a new methodology for optimizing finnedtube heat exchangers (FTHEs) using a volumeaveraging theory (VAT) hierarchical physical model and a genetic algorithm (GA) numerical optimizer. This ...
Modeling of Supercritical CO2 Shell-and-Tube Heat Exchangers Under Extreme Conditions: Part II: Heat Exchanger Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat exchangers play a critical role in supercritical CO2 Brayton cycles by providing necessary waste heat recovery. Supercritical CO2 thermal cycles potentially achieve higher energy density and thermal efficiency operating ...