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U.S. Army To Test Hydrogen Injection On Diesel Trucks

The viability of the technology is being tested further by the United States Army. In a July 3, 2017, press release, further plans were announced to test the proprietary system developed by Houston-based Commercial Hydrogen, Inc. The Army will determine whether the system lowers emissions and improves diesel fuel economy.

According to Robert Kennedy, the Air Program Manager in the DPW Environmental Division at Fort Hood in Texas, early results looked promising. He reported a 15.3 percent increase in fuel economy when the system was tested on a 2000 FL80 oil truck.

How Does it Work?

Hydrogen is injected into the air before it enters the combustion chamber of a specially modified diesel engine. The injection of hydrogen into the combustion chamber accelerates the burn rate of the diesel fuel. The process simultaneously results in lower emissions and more power - the perfect tandem. In one SAE test, hydrocarbons, carbon monoxide and nitrogen oxide levels all declined. Hydrogen injection systems are available as aftermarket add-ons to existing post-1980 diesel engines.

How Is Hydrogen Obtained?

The simple answer - electrolysis. The process synthesizes hydrogen taken from water vapor in the atmosphere. It is a low-pressure process which contrasts with the high-pressure storage of hydrogen necessary for fuel cell-based systems.

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