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Full-Text Articles in Mechanical Engineering

Impact Damage On A Thin Glass Plate With A Thin Polycarbonate Backing, Wenke Hu, Yenan Wang, Jian Yu, Chian-Fong Yen, Florin Bobaru Nov 2013

Impact Damage On A Thin Glass Plate With A Thin Polycarbonate Backing, Wenke Hu, Yenan Wang, Jian Yu, Chian-Fong Yen, Florin Bobaru

Florin Bobaru Ph.D.

We present experimental and computational results for the impact of a spherical projectile on a thin glass plate with a thin polycarbonate backing plate, restrained in a metal frame, or in the absence of the frame. We analyze the dependence of the damage patterns in the glass plate on the increasing impact velocities, from 61 m/s to 200 m/s. Experimental results are compared with those from peridynamic simulations of a simplified model. The main fracture patterns observed experimentally are captured by the peridynamic model for each of the three projectile velocities tested. More accurate implementation of the actual boundary conditions …


A Comparison Of Gasification Phenomena Among Raw Biomass, Torrefied Biomass And Coal In An Entrained-Flow Reactor, Wei-Hsin Chen Nov 2013

A Comparison Of Gasification Phenomena Among Raw Biomass, Torrefied Biomass And Coal In An Entrained-Flow Reactor, Wei-Hsin Chen

Wei-Hsin Chen

Gasification of torrefied biomass is a promising technique for producing synthesis gas (syngas) of higher quality than has previously been available. In this study, in order to evaluate the potential of the technique, gasification processes for three different materials, which include raw bamboo, torrefied bamboo (at 280 C for 1 h), and high-volatile bituminous coal in an entrained-flow gasifier using O2 as the gasifi- cation agent, are studied numerically and compared to each other. The obtained results suggest that in all cases, the carbon conversions of the three fuels are higher than 90%. However, the cold gasification effi- ciency for …


Carbon Dioxide Capture By Single Droplet Using Selexol, Rectisol And Water As Absorbents: A Theoretical Approach, Wei-Hsin Chen Oct 2013

Carbon Dioxide Capture By Single Droplet Using Selexol, Rectisol And Water As Absorbents: A Theoretical Approach, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Hydrogen Permeation And Recovery From H2-N2 Gas Mixtures By Pd Membranes With High Permeance, Wei-Hsin Chen Oct 2013

Hydrogen Permeation And Recovery From H2-N2 Gas Mixtures By Pd Membranes With High Permeance, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Biomass Torrefaction Characteristics In Inert And Oxidative Atmospheres At Various Superficial Velocities, Wei-Hsin Chen Sep 2013

Biomass Torrefaction Characteristics In Inert And Oxidative Atmospheres At Various Superficial Velocities, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


A Numerical Approach Of Interaction Of Methane Thermocatalytic Decomposition And Microwave Irradiation, Wei-Hsin Chen Sep 2013

A Numerical Approach Of Interaction Of Methane Thermocatalytic Decomposition And Microwave Irradiation, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Numerical Prediction Ofco2capture Process Byasingle Droplet Inalkaline Spray, Wei-Hsin Chen Aug 2013

Numerical Prediction Ofco2capture Process Byasingle Droplet Inalkaline Spray, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Taguchi Approach For Co-Gasification Optimization Of Torrefied Biomass And Coal, Wei-Hsin Chen Aug 2013

Taguchi Approach For Co-Gasification Optimization Of Torrefied Biomass And Coal, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Hydrogen Production And Thermal Behavior Of Methanol Autothermal Reforming And Steam Reforming Triggered By Microwave Heating, Wei-Hsin Chen Jul 2013

Hydrogen Production And Thermal Behavior Of Methanol Autothermal Reforming And Steam Reforming Triggered By Microwave Heating, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Enhancement Of Heat Recirculation On The Hysteresis Effect Of Catalytic Partial Oxidation Of Methane, Wei-Hsin Chen Jul 2013

Enhancement Of Heat Recirculation On The Hysteresis Effect Of Catalytic Partial Oxidation Of Methane, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Kinetics Development And Numerical Simulation Of Methane Thermocatalytic Decomposition At The Early Stage And Steady State, Wei-Hsin Chen Apr 2013

Kinetics Development And Numerical Simulation Of Methane Thermocatalytic Decomposition At The Early Stage And Steady State, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Thermogravimetric Analysis And Kinetics Of Co-Pyrolysis Of Raw/Torrefied, Wei-Hsin Chen Apr 2013

Thermogravimetric Analysis And Kinetics Of Co-Pyrolysis Of Raw/Torrefied, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


A Theoretical Approach Of Absorption Processes Of Air Pollutants In Sprays Under Droplet–Droplet Interaction, Wei-Hsin Chen Jan 2013

A Theoretical Approach Of Absorption Processes Of Air Pollutants In Sprays Under Droplet–Droplet Interaction, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Laminar Natural Convection From Isothermal Vertical Cylinders: Revisiting A Classical Subject, Jerod Day, Matthew Zemler, Matthew Traum, Sandra Boetcher Dec 2012

Laminar Natural Convection From Isothermal Vertical Cylinders: Revisiting A Classical Subject, Jerod Day, Matthew Zemler, Matthew Traum, Sandra Boetcher

Sandra Boetcher

No abstract provided.


Direct Methanol Fuel Cells For Increased Energy Capacity In Laptops And Other Mobile Electronics, W.E. Lear Jr., O.D. Crisalle, S.P. Mudiraj, Mohammad Biswas Dec 2012

Direct Methanol Fuel Cells For Increased Energy Capacity In Laptops And Other Mobile Electronics, W.E. Lear Jr., O.D. Crisalle, S.P. Mudiraj, Mohammad Biswas

Mohammad Biswas

Direct methanol fuel cells continuously require water to react with the methanol fuel at the anode side of the cell; it is generally obtained from the water produced on the cathode side. Until now, water management in DMFCs has required a bulky system of fans, exit condensers and other components for recapturing evaporated water from the exiting cathode air stream. Researchers have created a fuel cell with an innovative structure that forces water to flow directly from the cathode into the anode stream. Microscale passages within the DMFC reroute water and effectively prevent water losses to the air using much …


Hydrogen And Synthesis Gas Production From Activated Carbon And Steam Via Reusing Carbon Dioxide, Wei-Hsin Chen Dec 2012

Hydrogen And Synthesis Gas Production From Activated Carbon And Steam Via Reusing Carbon Dioxide, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.


Influences Of Geometry And Flow Pattern On Hydrogen Separation In A Pd-Based Membrane Tube, Wei-Hsin Chen Dec 2012

Influences Of Geometry And Flow Pattern On Hydrogen Separation In A Pd-Based Membrane Tube, Wei-Hsin Chen

Wei-Hsin Chen

No abstract provided.