Documentation
Public Health
2005 Diesel Engines: Emissions and Human Exposure
Diesel Engines: Health and Environmental
Diesel exhaust, school buses and children’s health
Diesel and Health in America: The Lingering Threat
Diesel in America Facts and Jones Day Critique
Research Summaries
Cleaning up Diesel and Automotive Exhaust with Hydrogen: W. Thor Zollinger, Senior Mechanical Engineer, Idaho National Engineering & Environmental Laboratory
“Addition of hydrogen to the air intake of a combustion engine can dramatically cut the pollutants in the engine’s exhaust.”
Emissions Reduction Through Hydrogen Enrichment: Jean J. Botti, M. James Grieve, Carlton E. Speck, Delphi Corporation, USA
“While renewable hydrogen is an attractive long-term scenario as a significant transportation fuel, the generation and us of hydrogen on-board the vehicle brings numerous advantages for emissions, efficiency, economics and utility.”
Experimental Investigation of Hydrogen Fuel Injection in DI Dual Fuel Diesel Engine: N. Saravanan, G. Nagarajan, C. Dhanasekaran and K.M. Kalaiselvan
“It is finally concluded that, the hydrogen fuel in dual fuel mode can give better performance, cleaner exhaust and best fuel economy.”
Hydrogen Enrichment Via Chemical Recuperation to Increase Efficiency and Reduce Emissions in Engines: David Vernon, Hydrogen Production & Utilization Laboratory, University of California, Davis
“Fundamental chemistry investigations of the effect of hydrogen enrichment on flame characteristics and internal combustion processes have shown that hydrogen enrichment can greatly extend the lean limit and dilution limit of many different fuel mixtures. This extension of the lean and dilution limits enables advanced combustion regimes with low combustion temperatures.”
Hydrogen, Fuel Cells, and Infrastructure Technologie: FY 2002 Progress Report: Robert Schefer, Joe Oefelein, Sandia National Laboratories, Livermore, CA
“The use of hydrogen as a fuel additive to extend the lean burn limit of conventional fuels has been repeatedly demonstrated to be a viable approach to achieving near-zero exhaust emissions from internal combustion engines.”
Investigation of the Effects of Hydrogen Addition on Performance and Exhaust Emissions of Diesel Engine: Mihaylov Milen, Barzev Kiril, University of Rousse, Bulgaria
“The experimental results demonstrate that the hydrogen addition in the intake air has an influence on improvement of engine power, and energy consumption.”
On-Board Hydrogen Generator for a Partial Hydrogen Injection Internal Combustion Engine: John Houseman and D.J. Cerini, Jet Propulsion Lab., California Institute of Technology
“By adding hydrogen, leaner operation is possible with associated increases in engine efficiency.”
Roy McAlister, President of the American Hydrogen Association:
“Mixing hydrogen with hydrocarbon fuels provides combustion stimulation by increasing the rate of the molecular – cracking processes in which large hydrocarbons are broken into smaller fragments. Expediting production of smaller molecular fragments is beneficial in increasing the surface-to-volume ration and consequent exposure to oxygen for completion of the combustion process.”
Water as Fuel: Dr. Paul Erickson, Director, Hydrogen Production and Utilization Laboratory, Assistant Professor, Mechanical and Aeronautical Engineering Department, University of California, Davis
“Potential benefits of hydrogen enriched combustion are lower lean limit, flame stability, potential for low temperature combustion (with high amounts of Exhaust Gas Recirculation (EGR) or air dilution), potential for simultaneous emissions reductions (NOx and Hydrocarbons) and efficiency increases due to lower losses from lower temperatures.”
Safety
DOE Hydrogen Program: Hydrogen Safety
Fact Sheet Series: Hydrogen Safety
Rocky Mountain Institute: Is Hydrogen Safe