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RISDesign and Testing of a Unitized Regenerative Fuel Cell
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A unitized regenerative fuel cell (URFC) is designed and tested for energy conversion and storage under the support of a NASA funded student design project. The URFC is of the proton exchange ...
Electrospun Nafion Nanofiber for Proton Exchange Membrane Fuel Cell Application
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Proton exchange membrane fuel cells (PEMFCs) are attractive power plants for use in many applications, including portable power sources, electric vehicles, and on-site combined power/heat plants, ...
Proton Exchange Membrane Fuel Cell High Carbon Monoxide Tolerance Operation Using Pulsed Heating and Pressure Swing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Proton exchange membrane fuel cells (PEMFCs) are attractive power plants for use in many applications, including portable power sources, electric vehicles, and on-site combined power/heat plants. ...
Physics-Based Predictive Cutting Force Model in Ultrasonic-Vibration-Assisted Grinding for Titanium Drilling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Ultrasonic-vibration-assisted grinding (UVAG) or rotary ultrasonic machining has been investigated both experimentally and theoretically. Effects of input variables on output variables in UVAG of ...
Computational Prediction of Heat Transfer to Gas Turbine Nozzle Guide Vanes With Roughened Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The local Mach number and heat transfer coefficient over the aerofoil surfaces and endwalls of a transonic gas turbine nozzle guide vane have been calculated. The computations were performed ...
A Converging Slot-Hole Film-Cooling Geometry—Part 1: Low-Speed Flat-Plate Heat Transfer and Loss
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents experimental measurements of the performance of a new film-cooling hole geometry—the converging slot-hole or console. This novel, patented geometry has been designed to improve ...
A Converging Slot-Hole Film-Cooling Geometry—Part 2: Transonic Nozzle Guide Vane Heat Transfer and Loss
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents the first experimental measurements on an engine representative nozzle guide vane, of a new film-cooling hole geometry, a converging slot-hole or console. The patented console ...
Free Vibrations of Fluid-Filled Orthotropic Cylindrical Shells
Publisher: American Society of Civil Engineers
Abstract: Based on three-dimensional elastic theory, three components of displacement are expanded by orthotropic series. A second-order ordinary differential equation set is then obtained that can be solved by Frobenius Method. ...
Influence of Surface Roughness on Heat Transfer and Effectiveness for a Fully Film Cooled Nozzle Guide Vane Measured by Wide Band Liquid Crystals and Direct Heat Flux Gages
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of surface roughness on heat transfer coefficient and cooling effectiveness for a fully film cooled three-dimensional nozzle guide vane (NGV) has been measured in a transonic annular ...
Free and Ambient Vibration of Brent-Spence Bridge
Publisher: American Society of Civil Engineers
Abstract: The main objective of this study is to assess the structural integrity of the double-deck through-truss Brent-Spence bridge when subjected to a seismic event from the New Madrid, Wabash Valley, or Anna seismic zones. To ...