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RISNumerical Studies of Thermal Transport and Mechanical Effects Due to Thermal-Inertia Loading in PEMFC Stack in Subfreezing Environment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The thermal transport phenomena and mechanical effects due to thermal-inertia loading during start-up/shut-down operations in a 3D proton exchange membrane fuel cell (PEMFC) stack in a subfreezing ...
An Effective Combined Finite Element Upwind Finite Volume Method for a Transient Multiphysics Two Phase Transport Model of a Proton Exchange Membrane Fuel Cell
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, an effective combined finite elementupwind finite volume method is studied for a threedimensional transient multiphysics transport model of a proton exchange membrane fuel cell (PEMFC), in which Navier–S ...
A Combined Finite Element-Upwind Finite Volume Method for Liquid-Feed Direct Methanol Fuel Cell Simulations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a three-dimensional, two-phase transport model of liquid-feed direct methanol fuel cell (DMFC), which is based on the multiphase mixture formulation and encompasses all components ...
Analysis of a Field Study on Drainage Design and Control of Water Inrushes into Hongtu Tunnel, China
Publisher: American Society of Civil Engineers
Abstract: Serious water inrush accidents occur frequently in the fault-prone area around Hongtu Tunnel, which encompasses several reservoirs and large bodies of water. In this study, a field test was used to identify the water inrush ...
Modeling Study of Anode Water Flooding and Gas Purge for PEMFCs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A one-dimensional, dynamic proton exchange membrane fuel cells stack model is developed in this paper, where the transports of reactant and water (in both liquid and vapor phase) are described ...
Advanced Study of Non-Uniform Cell Voltage Distribution for a PEMFC Stack
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a fully coupled non-isothermal, electrochemical, and transport 3D model for a 10-cell PEMFC stack with coolant channels is constructed and implemented to examine and compare the ...
Modeling Mode I Cracking Failure in Asphalt Binder by Using Nonconserved Phase-Field Model
Publisher: American Society of Civil Engineers
Abstract: Cracking failure in asphalt binder in winter has always been one of the most serious problems in pavement structures. Classical fracture mechanics is the most widely used method to analyze the initiation and propagation ...
Impact of Water Gushing Influenced by the Relationship between Fault and Tunnel Position
Publisher: ASCE
Abstract: In order to analyze the influence of the position relationship between the fault and the tunnel on the water inrush, the fault is regarded as a constant head boundary, the bounded aquifer is transformed into an unbounded ...
Refraction of Flexural Waves by Ultra-Broadband Achromatic Meta-Slab With Wavelength-Dependent Phase Shifts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Great progress has been made in modulating flexural waves by elastic metasurfaces. Most of the proposed elastic metasurfaces suffer from chromatic aberration, limited in a narrow bandwidth around the designed frequency. ...
Filling Ratio Optimization for High-Performance Nanoengineered Copper-Water Heat Pipes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This experimental test investigates the effect of filling ratio (FR) and inclination angle on the thermal performance of a nanoengineered copper-water heat pipe. A hydrophilic copper oxide coating (CuO) is synthesized and ...