Browsing Mechanical Engineering by Title
Now showing items 128-147 of 350
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An experimental and computational investigation of a thin piezofan cooler
(IEEE, 2017)Recent trends in electronic cooling systems are targeted towards a reduction in size, therefore small form factor/miniature cooling devices are of interest to various applications. Among these devices are piezoelectric ... -
An experimental and computational study on efficiency of white LED packages with a thermocaloric approach
(IEEE, 2017)Thermal management of light-emitting diode (LED) chips is crucial for light extraction and lifetime. It is well known that the light output of an LED decreases with the elevated temperatures. For higher light extraction, ... -
Experimental and numerical investigation of ground heat exchangers in the building foundation
(Elsevier, 2019-05-15)The current study proposes a novel method with the experimental and numerical studies for the ground source heat pumps, which are known as environment-friendly and efficient heating & cooling systems to overcome their ... -
Experimental and numerical investigation of inlet temperature effect on convective heat transfer of γ-Al2O3/Water nanofluid flows in microtubes
(Taylor & Francis, 2019-06-15)Nanofluids are the combination of a base fluid with nanoparticles with sizes of 1–100 nm. In order to increase the heat transfer performance, nanoparticles with higher thermal conductivity compared to that of base fluid ... -
Experimental and numerical study of rubber flow in the extrusion die of a weather strip
(Society of Chemical Engineers, 2019)Extrusion is the main method used to produce rubber weather strips in automotive industries, and the quality of the final product largely depends on the thermal properties of the process output. Therefore, precise thermal ... -
An experimental and theoretical analysis of vapor-to-liquid phase change on microstructured surfaces
(Elsevier, 2020-09)In this work, an experimental and a theoretical study was carried out on condensation heat transfer on vertically aligned bare unstructured, micro V-grooved and square-grooved copper substrates. During the experiments, ... -
An experimental investigation into frost accumulation over vertical finned and unfinned surfaces during impinging air flow
(ASME, 2020)Frost formation on evaporators negatively affects the cooling performance of refrigerators. It increases the thermal resistance between the refrigerant and air leading to a reduction in the system cooling capacity. In this ... -
An experimental study of impinging synthetic jets for heat transfer augmentation
(World Scientific Publishing Co, 2015-07)According to recent trends in the field of miniature electronics, the need for compact cooling solutions compatible with very thin profiles and small footprint areas is inevitable. Impinging synthetic jets are recognized ... -
Experimental study on heat transfer of multi-walled carbon nanotubes/water nanofluids in horizontal microtubes
(ASME, 2016)In this study, heat transfer characteristics of multi-walled carbon nanotube based nanofluids were investigated in horizontal microtubes with outer and inner diameters of ∼1067 and ∼889 μm, respectively. Carbon nanotubes ... -
Exploring the performance limits of MOF/polymer MMMs for O2/N2 separation using computational screening
(Elsevier, 2021-01-15)Air separation is one of the most challenging separations because of the very similar molecular dimensions of gas molecules. We used a high-throughput computational screening approach to identify the upper performance ... -
Fatigue behavior of friction stir welded joints of pure copper with ultra-fine grains
(Elsevier, 2015)In order to determine the long term durability of friction stir welded joints with ultra-fine grained microstructure, investigation of the mechanical response with specific emphasis on fatigue behaviour is critical. In ... -
Fatigue characteristics of continuous welded rails and the effect of residual stress on fatigue-ratchetting interaction
(Taylor & Francis, 2020-03-16)The importance of ratchetting-fatigue interaction is garnering interest due to complex failure mechanism of rail welds under cyclic loading. The objective of this paper is to investigate the fatigue characteristics of ... -
First-principle diffraction simulations as a tool to solve the nanodiffraction problem
(International Union of Crystallography, 2021-08)N/A -
Flow and heat transfer study of an impinging piezoelectric fan over a vertical surface
(ASME, 2016)Piezoelectric fans are low-form-factor cooling devices, which have gained recent attention for electronics cooling. These devices feature a vibrating blade, which sheds vortices from its tip during its motion. The performance ... -
Fluid flow characteristics inside convergent, divergent and straight open-end pressure swirl atomizer
(Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2020)Effects of geometrical parameters on the performance of small-scale open-end pressure swirl atomizers (PSA) have been studied using computational fluid dynamics. The shape of the swirl chamber is the main geometrical feature ... -
Force reference extraction via human interaction for a robotic polishing task: Force-induced motion
In this paper, a method to control a manipulator using force-induced trajectory is proposed. The trajectory is learned from an operator doing the polishing task using a tool attached to the robot's end-effector. The learning ... -
Formation of nano-sized compounds during friction stir welding of Cu–Zn alloys: effect of tool composition
(Elsevier, 2020-12)For the first time, the origin of tool composition effect on microstructure and mechanical properties of the friction stir welded joints has been disclosed. For this aim, nanoindentation, orientation image microscopy, and ... -
Fracture behavior of ultrafine-grained titanium under tension at elevated temperatures
(ASME, 2020-10-01)This investigation focused on the deformation response and microstructural changes of severely deformed titanium during post-severe plastic deformation tension, at temperatures of 300–600 °C and at strain rates of 0.001–0.1 ... -
Frequency-based dynamic topology optimization methodology for improved door closing sound quality
(Sage, 2019-12-05)Door closing sound quality of a vehicle has become one of the most important customer-related quality metrics in the recent years. There has been a vast amount of information on the design parameters contributing to this ... -
From passive to active pitch regulation of wind turbines: Optimization method with numerical validation
(ASME, 2015)An optimization method that changes the control strategy of the Horizontal Axis Wind Turbine (HAWT) from passive- to active-pitch has been developed. The method aims to keep the rated power constant by adjusting the blade ...
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