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RISStudy on a Vapor Feed Air Breathing Direct Methanol Fuel Cell Assisted by a Catalytic Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Feeding vaporized methanol to the direct methanol fuel cell (DMFC) helps reduce the effects of methanol crossover (MCO) and facilitates the use of highconcentration or neat methanol so as to enhance the energy density of ...
Influences of Longitudinal Gradient on Traffic Accident Rate Considering Length of Downgrade
Publisher: American Society of Civil Engineers
Abstract: In order to study the effect of gradient and length of long and steep downgrade on the traffic accidents, the data of 1276 traffic accidents which occurred in 5 different typical downgrades (76.68 km in total length) were ...
Analytical Prediction for Tunneling-Induced Ground Movements with Modified Deformation Pattern
Publisher: American Society of Civil Engineers
Abstract: In current methods for predicting ground movement caused by tunneling, the center of the tunnel is usually thought of as the focus of ground-movement vectors for convenience. In reality, the ground-movement vectors around ...
Effect of Thermal Load on Evaporation Loss of Natural Draft Counter-Flow Wet Cooling Towers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Based on the Merkel method, a mathematical model for calculating the evaporation loss of natural draft counterflow wet cooling towers (NDWCTs) was established. Taking the NDWCTs of the representative 300 MW and 600 MW power ...
Effect Mechanism of Ambient Air Parameters on the Thermal Performance for Cooling Towers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: As the volume of natural draft wet cooling towers (NDWCTs) continues to increase, the influence of ambient air on the thermal performance of the NDWCT is not clear. Therefore, the main parameters such as gas–water ratio, ...
The Effects of Surface Tension on Spherical Oscillatory Indentation of Viscoelastic Materials
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The oscillatory indentation has become an attractive approach to characterizing the viscoelastic properties of soft biological solids. However, the influences of surface tension on oscillatory responses are ignored, which ...
The Experimental Investigation of Impinging Heat Transfer of Pulsation Jet on the Flat Plate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A series of tests were performed for the pulsating jet impingement heat transfer by varying the Reynolds number (5000 ≤ Re ≤ 20,000), operation frequency (10 Hz ≤ f ≤ 25 Hz), and dimensionless nozzle-to-surface distance ...
Enhanced Water Management and Fuel Efficiency of a Fully Passive Direct Methanol Fuel Cell With Super-Hydrophilic/ -Hydrophobic Cathode Porous Flow-Field
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Water management is a critical issue for a direct methanol fuel cell (DMFC). This study focuses primarily on the use of a super-hydrophilic or super-hydrophobic cathode porous flow field to improve the water management of ...
Rapid Calculation Method for the Factor of Safety of a Uniform Slope
Publisher: ASCE
Abstract: The limit equilibrium method (LEM) and the strength reduction method (SRM) are popular tools used for assessing the stability of slopes. However, they require complex numerical geomechanical models to be constructed and ...
Experimental Investigation of Impinging Heat Transfer of the Pulsed Chevron Jet on a Semicylindrical Concave Plate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Impinging heat transferred by a pulsed jet induced by a six-chevron nozzle on a semicylindrical concave surface is investigated by varying jet Reynolds numbers (5000 ≤ Re ≤ 20,000), operational frequencies (0 Hz ≤ f ≤ 25 ...