Hydrogen

Hydrogen is an alternative, clean fuel that can be used in a wide range of applications from powering homes and businesses, to fueling cars, trucks, buses and more. Researchers at the Energy Institute are exploring applications for hydrogen technology and studying how to optimize the efficiency and design of hydrogen fuel cells and fueling stations.

Hydrogen Research & Studies

Dr. Thomas Bradley, Energy Institute faculty and Department Head of Systems Engineering, has developed multidisciplinary tools for analysis, design and optimization of long-endurance fuel cell powered aircraft.  He has also validated design methodology and tools through construction of the largest compressed hydrogen fuel cell aircraft developed to date.

Additionally, Dr. Bradley has designed, constructed and tested PEM fuel cells for aircraft application and published seminal results regarding fuel cell design tradeoffs for the aircraft powerplant application.  Other non-thesis research includes development of numerical optimization scheme for feed-forward control of flexible systems with non-linearities, modeling and control of plug-in hybrid electric vehicles, and physics-based propeller modeling with application to advanced design of unmanned aerial vehicles.

Dr. Bradley’s research has also looked at retail hydrogen fueling stations to quantify system engineering pathways to improve these systems’ reliability, consumer acceptability, and economic performance.

EcoCAR Challenge

Colorado State University is among 12 teams to join the EcoCAR Mobility Challenge, the fourth in a series of Advanced Vehicle Technology Competitions sponsored by General Motors (GM) and the U.S. Department of Energy. Changing the philosophy from previous years, the four-year competition will focus on vehicle autonomy as teams implement prediction and sensing systems to improve safety and fuel economy, specifically for the carsharing market.

The previous EcoCAR 3 competition had students modify a Chevrolet Camaro to become more fuel-efficient.

  • KEY ELEMENTS:  Hybrid electric vehicle powertrains, physics, statics, dynamics, circuits, electronics, microcontrollers, control systems, electrochemistry, heat transfer, computer-aided analysis/design software, Matlab/Simulink/Stateflow software
  • RESEARCH ISSUES: Physics-based modeling and simulation-based design of hybrid electric vehicle powertrains, optimized component sizing and subsystem design based on performance versus cost tradeoffs,
  • Kurtz, J., Sprik, S., Peters, M., Bradley, T.H., “Retail Hydrogen Station Reliability Status and Advances,” Reliability Engineering and System Safety, 10682, 2020.
  • Kurtz, J., Winkler, E., Gearhart, C., and Bradley, T.H., “Predicting Demand for Hydrogen Station Fueling,” International Journal of Hydrogen Energy, 2019, 10.1016/j.ijhydene.2019.10.014
  • Kurtz, J., Sprik, S., and Bradley, T. H. “Review of transportation hydrogen infrastructure performance and reliability” International Journal of Hydrogen Energy. Volume 44, Issue 23, 3 May 2019, Pages 12010-12023
  • Bucher, J.D., and Bradley, T.H., “Modeling Operating Modes, Energy Consumptions, and Infrastructure Requirements of Fuel Cell Plug in Hybrid Electric Vehicles using Longitudinal Geographical Transportation Data,” International Journal of Hydrogen Energy, https://doi.org/10.1016/j.ijhydene.2018.04.159, 2018.
  • Renquist, J.V., Dickman, B., and Bradley, T.H., “Economic analysis of fuel cell powered materials handling equipment,” International Journal of Hydrogen Energy, Volume 37, Issue 17, September 2012, Pages 12054-12059.
  • Bradley, T. H., Moffitt, B. A., Parekh, D. E., and Mavris, D. “Design Studies for Hydrogen Fuel Cell Powered Unmanned Aerial Vehicles,” 26th AIAA Applied Aerodynamics Conference, August 18-21, 2008, Honolulu, Hawaii. AIAA 2008-6413.
  • Bradley, T. H. and Parekh D. E. “Design, Applications and Commercialization of Fuel Cell Powered Aircraft,” Proceedings of theNational Hydrogen Conference, March 30-April 3 2008, Sacramento, California.
  • Bradley, T. H., Moffitt, B.A., Fuller, T.F., Parekh, D. E., and Mavris, D. “Comparison of Design Methods for Fuel Cell Powered Unmanned Aerial Vehicles,” AIAA Journal of Aircraft, Volume 46, Number 6, 2009.
  • Bradley, T. H., Moffitt, B.A., Fuller, T.F., Parekh, D. E., and Mavris, D. “Hardware in the Loop Performance Simulation for a Fuel Cell Unmanned Aerial Vehicle,” AIAA Journal of Propulsion and Power, Volume 25, Number 6, 2009.
  • Bradley, T.H., Moffitt, B.A., Mavris, D., Parekh, D.E. “Aviation: Fuel Cells.” In: Juergen Garche, Chris Dyer, Patrick Moseley, Zempachi Ogumi, David Rand and Bruno Scrosati, editors. Encyclopedia of Electrochemical Power Sources, Vol 1. Amsterdam: Elsevier; 2009. pp. 186-192.
  • Bradley, T. H., Moffitt, B., Parekh, D., and Mavris, D. “Development and experimental characterization of a fuel cell powered aircraft.” Journal of Power Sources, 171(2007) 793-801.
  • Peer Reviewer, 2017 DOE Hydrogen & Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting.
  • Geller, B., Bucher, J. Salisbury, S., and Bradley, T.H., “Validation and Analysis of the Fuel Cell Plug-in Hybrid Electric Vehicle Built by Colorado State University for the EcoCAR 2: Plugging into the Future Vehicle Competition,” SAE World Congress, Detroit, MI, 2015, 2014-01-2910.
  • Salisbury, S., Geller, B., Bucher, J., and Bradley, T.H., “Detailed Analysis of a Fuel Cell Plug-in Hybrid Electric Vehicle Demonstration,” SAE World Congress, Detroit, MI, 2014-01-1925.
  • Salisbury, S., Smart, J., and Bradley, T.H., “Actual Versus Estimated Utility Factor of a Large Set of Privately Owned Chevrolet Volts,” SAE World Congress, Detroit, MI, 2014-01-1803.
  • Bradley, T.H. “Fuel Cell Education-Invited Presentation,” Fuel Cell Seminar & Energy Exposition, Los Angeles, CA, November 10-14, 2014
  • Geller, B., Bucher, J., Salisbury, S., and Bradley, T.H., “Validation and Analysis of the Fuel Cell Plug-in Hybrid Electric Vehicle Built by Colorado State University for the EcoCAR 2: Plugging into the Future Vehicle Competition,” SAE International Powertrain, Fuels & Lubricants Meeting, Birmingham, UK, 2014-01-2910.
  • Salisbury, S., Geller, B., Fox, M., and Bradley, T.H., “Detailed Design of a Fuel Cell Plug-in Hybrid Electric Vehicle,” SAE World Congress, Detroit, MI, 2013-01-0560.
  • Geller, B., Fox, M., Alvarado, C., Barrett, P., Habib, H., Koelling, Z., Malakoutirad, M., Miksch, J., Salisbury, S., Sewell, S., Shea, C., Zevenbergen, M., Quinn, J., and Bradley, TH., “Design of a Fuel Cell Plug-in Hybrid Electric Vehicle in a Range Extending Configuration by Colorado State University for the EcoCAR2 Competition,” SAE 2012 International Powertrains, Fuels Lubricants Meeting, September 18-20, 2012, Malmo, Sweden.
  • Geller, B., Fox, M., Bradley, T.H., Kalhammer, F., Kopf, B., and Panik, F., “Plug-in Fuel Cell Vehicle Technology and Value Analysis,” EVS26, May 6-9 2012, Los Angeles, California.
  • Bickley, E., Boley, M., Brown, S., Clark, S., Gindl, B., Hemenway, D., Miskulin, R., Beegles, R., Stanton, K., and Bradley T.H., “Design and Testing of a Fuel Cell Powered Motorcycle,” ASME/SAE/AIAA 9th International Energy Conversion Engineering Conference, July 2011, San Diego, CA.
  • Economic and Environmental Analysis of Fuel Cell Powered Materials Handling Equipment. EPRI, Palo Alto, CA: 2010. 1019928.
  • Plug-in Fuel Cell Vehicle Technology and Value Analysis Phase 1: Preliminary Findings and Plan for Detailed Study. EPRI, Palo Alto, CA: 2010. 1021482.
  • Bradley, T.H., Geller, B., Davis, B.M., Kalhammer, F., Kopf, B., Panik, F, and Huang, Y., “Plug in Fuel Cell Vehicle Technology and Value Analysis,” invited presentation in Plug in 2010 Conference, July 26-29, 2010, Long Beach, California, USA.
  • Rhoads, G., and Bradley, T.H., “Flight Test Results for a 24 Hour Fuel Cell Unmanned Aerial Vehicle”, ASME/SAE/AIAA 8th International Energy Conversion Engineering Conference, July 2010, Nashville, TN, AIAA 2010-6690.
  • Bradley, T.H. Moffitt, B.A., Parekh, D.E., Fuller, T.F., and Mavris, D.N., “Energy Management for Fuel Cell Powered Hybrid-Electric Aircraft, ASME/SAE/AIAA 7th International Energy Conversion Engineering Conference, 2 – 5 August 2009, Denver, Colorado. AIAA 2009-4590.
  • Bradley, T.H. “Modeling, Design and Energy Management of Fuel Cell Systems for Aircraft,” PhD Dissertation, Georgia Institute of Technology, Woodruff School of Mechanical Engineering, 2008.
  • Fuller, T. F., Bradley, T. H. “Methodology for Robust Design of Small Fuel Cell Systems: Application to Unmanned Aerial Vehicles,” Invited presentation in 10th Annual International Conference on Small Fuel Cells, April 30-May 2, 2008, Atlanta, Georgia, USA.
  • Bradley, T. H. and Parekh D. E. “Design, Applications and Commercialization of Fuel Cell Powered Aircraft,” Proceedings of theNational Hydrogen Conference, March 30-April 3 2008, Sacramento, California.
  • Bradley, T. H., Moffitt, B., Thomas, R., Parekh, D. E., and Mavris, D. “Test Results for a Fuel Cell-Powered Demonstration Aircraft.” in Society of Automotive Engineers Power System Conference, November 7-9, 2006, New Orleans, Louisiana. 2006-01-3092.
  • Moffitt, B., Bradley, T. H., Mavris, D., and Parekh D. E. “Design Space Exploration of Small- Scale PEM Fuel Cell Long Endurance Aircraft.” in 6th AIAA Aviation Technology, Integration and Operations Conference, September 25-27, 2006, Wichita, Kansas. AIAA-2006-7701.
  • Bradley, T. H., Moffitt, B. A., Parekh, D. E., and Mavris, D. “Validated Modeling and Synthesis of Medium-scale PEM Fuel Cell Aircraft.” in 4th International ASME Conference on Fuel Cell Science, Engineering and Technology, June 18-21 2006, Irvine, California. FUELCELL2006-97233.
  • Moffitt, B. A., Bradley, T. H., Parekh, D. E., and Mavris, D., “Design and Performance Validation of a Fuel Cell Unmanned Aerial Vehicle.” in 44th AIAA Aerospace Sciences Meeting and Exhibit, January 9-12, 2006, Reno, Nevada. AIAA 2006-0823.
  • Moffitt, B. A., Bradley, T. H., Mavris, D. and Parekh, D. E., “Reducing design error of a fuel cell UAV through variable fidelity optimization.” in 7th AIAA Aviation Technology, Integration and Operations Conference, September 2007, Belfast, N. Ireland. AIAA 2007-7793.
  • Bradley, T. H., Moffitt, B. A., Parekh, D. E., and Mavris, D. “Flight Testing Results for a Fuel Cell Unmanned Aerial Vehicle.” in 45th AIAA Aerospace Sciences Meeting and Exhibit, January 8-11, 2007, Reno, Nevada. AIAA 2007-0032

Hydrogen Experts

Thomas Bradley

Woodward Professor, Department Head of Systems Engineering