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University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies http://www.me.ua.edu/ cavt/

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Page 1: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

The Center for Advanced Vehicle

Technologieshttp://www.me.ua.edu/cavt/

Page 2: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

Vision of the CAVTPromote the development of efficient, safe,

secure, economical, durable, comfortable, user-friendly and environmentally-conscious vehicles for meeting the transportation needs of America

through discovery, research and education.

Page 3: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

CAVT Technical Thrusts

• Fuel cells

• NVH and controls

• Materials

• Manufacturing processes

• Hydrogen vehicle safety

• IC engines- emissions, fuels, novel combustion

• Hybrid electric vehicles (IC engine/electric motor)

Award winning Ballard/UA/ Freightliner APU project

Page 4: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

Partnering & Research InitiationCAVT supports vehicle

engineering research needs for Alabama manufacturers and the

Southeast- we’ll travel!

Mercedes M-Class, Hyundai Sonata, Honda Odyssey- made in Alabama!

Page 5: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

Fuel Cell Research @UA

PEMFC SOFC

1. Hydrogen Production2. N-Based Energy

Systems3. Electrolyte Membrane4. Catalyst & Electrode 5. Bipolar/End Plates6. Heat Transfer7. Vibration Analysis

1. Electrode Materials

2. Electrolyte Material

3. Interconnects

Modeling and SystemIntegration

DOT/CAVT, DOE/EPSCoRArgonne, Ballard, Honda

UA Departments

• Chemical Eng.• Metallurgical

Eng.• Mechanical

Eng.• Chemistry

EPA/GCHSRC, NSF

Fuel Cell Research

Page 6: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

IC Engines Research • Venerable IC engines program-

focus is emissions, alternative fuels and diesel engines.

• Current research focuses on alternative fuels, hybrid electric vehicles, cold start emissions, and engine optimization for hybrid electric vehicles.

Page 7: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

Structural Acoustics Lab

Ballard/UA/Freightliner award-winning fuel cell APU project

• Detailed spatial vibration measurements

• Vibration isolation, structural damping  

• Source location, directivity, and other acoustic characterizations

• Active control analysis, implementation

• Structural vibration and acoustic radiation modeling

Page 8: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

Fuel Cell Safety & Failure Modes in Light Duty Vehicles

Fuel Cell Power Unit

Lumped ParameterLumped ParameterModelingModeling

Subcomponents

Vehicle Frame

FCPU

• Finite ElementFinite Element• Identify Critical Identify Critical ComponentsComponents• Hydrogen Leakage Hydrogen Leakage

IssuesIssues• ID Failure ModesID Failure Modes

Critical Loads, Paths,Critical Loads, Paths, and Response Levelsand Response Levels

H2

SimulationsSimulations ExperimentalExperimentalEffortsEfforts

023CrashImpulse

RoadResponse

GoalsExamine crashworthiness and operational

safety issues of fuel cells in light duty vehicle applications through modeling and component

testing.

BenefitsA better understanding of the safety issues and

failure modes of light duty vehicles incorporating fuel cells will provide information

critical to public policy for transportation.

Page 9: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

Hydrogen Tank Integrity Studies

(a) Pre-stress @ 45 MPa

(b) Pre-stress @ 45 MPa

(c) Operating Pressure 35 MPa w/ Pre-stress

(d) Operating Pressure 35 MPa w/o Pre-stress

Page 10: University of Alabama Center for Advanced Vehicle Technologies The Center for Advanced Vehicle Technologies

University of Alabama Center for Advanced Vehicle Technologies

H2 Dispersion / Ignition in Enclosures

Dispersion behavior of H2 in a horizontal channel

inc

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Objectives• Characterize H2 dispersion behavior

in production vehicle enclosures • Identify hydrogen ignition conditions

and characterize ignition behavior• Examine mitigate methods

Motivation• Small leaks in H2 delivery systems may

ignite, endangering vehicle occupants• Need to understand dispersion &

ignition behavior

Methods• Computational Fluid Dynamics• Experimental Measurements of

Hydrogen Concentrations & Ignition Behavior

Computational Grid to model automobile interior