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RISEfficiencies for Partially Wetted Spine Fins: Uniform Cross Section, Conical, Concave Parabolic, and Convex Parabolic Spines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, efficiencies for partially wetted fins for the uniform cross section spine, conical spine, concave parabolic spine, and convex parabolic spine are presented using an analytical method. Depending on the set ...
The New Mathematical Models for Plain Fin and Tube Heat Exchangers With Dehumidification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For evaluating performance of finandtube heat exchangers under dehumidifying conditions, the recent lumped approach models are based on the enthalpy potential or equivalent dry bulb temperature. This study proposes a new ...
Heat Transfer Performance of a Glass Thermosyphon Using Graphene–Acetone Nanofluid
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study presents an enhancement in the heat transfer performance of a glass thermosyphon using graphene–acetone nanofluid with 0.05%, 0.07%, and 0.09% volume concentrations. The heat load is varied between 10 and ...
Operational Limitations of Heat Pipes With Silver Water Nanofluids
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The paper presents the enhancement in the operational limits (boiling, entrainment, sonic, viscous and capillary limits) of heat pipes using silver nanoparticles dispersed in deionized (DI) water. The tested nanoparticles ...
Estimation of Pressure Drop of Two-Phase Flow in Horizontal Long Pipes Using Artificial Neural Networks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gas–liquid two-phase flows through long pipelines are one of the most common cases found in chemical, oil, and gas industries. In contrast to the gas/Newtonian liquid systems, the pressure drop has rarely been investigated ...
Exergy Optimization of a Double-Exposure Solar Cooker by Response Surface Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The purpose of this study was to optimize the performance of a double-exposure solar cooker based on exergy efficiency. Two similar solar cookers with variable parabolic mirror position were used for this experimental ...
Heat Transfer, Pressure Drop, and Entropy Generation in a Solar Collector Using SiO2/Water Nanofluids: Effects of Nanoparticle Size and pH
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, an analytical study is carried out on the heat transfer, pressure drop, and entropy generation in a flatplate solar collector using SiO2/water nanofluid with volume concentration of 1%. In the study, the ...
Effect of Nanoparticle Coating on the Performance of a Miniature Loop Heat Pipe for Electronics Cooling Applications
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effect of nanoparticle coating on the performance of a miniature loop heat pipe (mLHP) is experimentally investigated for heat inputs of 20–380 W using distilled water as the working fluid. Applications include the ...
Effect of Filling Ratio and Tilt Angle on the Performance of a Mini-Loop Thermosyphon
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: The thermal behavior of a compact mini-loop thermosyphon is experimentally studied at different filling ratios (20%, 30%, 40%, 50%, and 70%) and tilt angles (0 deg, 30 deg, 45 deg, 60 deg, and 90 deg) for the heat loads ...