
Roy E. McAlister, P.E.
President of American Hydrogen Association
INTRODUCTION
The carbon equivalent of 180 million barrels of oil are burned each day to support the Earth's growing population of 5 billion persons search for prosperity. Carbon dioxide built up in the atmosphere has reached levels that are about 30 per cent higher than at any time in the last 160 years. Environmental damage and health threats due to air pollution have reached every area of the planet. Continued dependence upon fossil fuels is detrimental to public health and is a dangerous experiment that may have no point of return for civilization, as we know it. Nine Americans die each hour due to air pollution.
U.S. Energy expenditures amount to about 440 billion dollars per year. About 50 percent of our energy is produced from foreign oil. U.S. military presence throughout the planet's oil-rich areas to secure the oil-supply lines costs hundreds of billions of dollars each year. These great expenses curb investment in capital goods and our economy suffers.
Finding a solution to the difficult problems of energy sufficiency, environmental damage, and air pollution is imperative. The solution must provide convenience for near-term market acceptance and utilize renewable resources.
HYDROGEN AS A COMBUSTION STIMULANT
Hydrogen burns more rapidly than hydrocarbon fuels because it is smaller and enters combustion reactions at higher velocity, has lower activation energy, and incurs more molecular collisions than heavier molecules. These characteristics make it possible to use mixtures of hydrogen with conventional hydrocarbon fuels such as gasoline, diesel and propane to reduce emissions of unburned hydrocarbons. Transition from fossil fuels to renewable hydrogen by use of mixtures of hydrogen in small quantities with conventional fuels offers significant reductions in exhaust emissions. Using hydrogen as a combustion stimulant makes it possible for other fuels to meet future requirements for lower exhaust emissions in California and an increasing number of additional States.
Mixing hydrogen with hydrocarbon fuels provides combustion stimulation by increasing the rate of 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 ratio and consequent exposure to oxygen for completion of the combustion process. Relatively small amount of hydrogen can dramatically increase horsepower and reduce emissions of atmospheric pollutants.
Reprinted from an AHA Newsletter
Copyright Hy-Drive Technologies Ltd. 10/21 /01
