Greener economy: Hydrogen injection equipment allows large diesel engines to save fuel and reduce emissions

A South Australian company is preparing to put an innovative after-sales service kit into production,media reported. It is understood that this kit can significantly reduce fuel consumption, particulates and carbon monoxide emissions from large diesel engines, which require only a small amount of water. The HYDI system produces its own hydrogen when the car is driven, and injects it directly into the air-fuel mixture before the combustion phase to change the engine’s fuel injection for optimal efficiency.

Greener economy: Hydrogen injection equipment allows large diesel engines to save fuel and reduce emissions

The company says a small amount of hydrogen helps the mixture burn faster and more thoroughly, allowing it to generate more power and produce less emissions with less fuel.

The system is understood to support large diesel engines ranging from 6 liters to 40 liters and higher, and according to the company itself, it can reduce fuel consumption by 5% to 13%, allowing its investment returns to be reduced to three months in uninterrupted scenarios or no more than 18 months in urban bus-type scenarios.

It is also impressive in terms of its impact on emissions, with particulate emissions reduced by 25 to 80 per cent and carbon monoxide emissions by 7 to 25 per cent.

The equipment generates hydrogen by electrolysis, obtains electricity from the alternator and uses it to separate distilled water from a container that is understood to require about 2 litres of water per 70 hours of operation. JOHN WILSON, MANAGING DIRECTOR OF HYDI, SAID THE PRODUCT DID NOT INVOLVE ELECTROLYSIS OR ALKALINE SOLUTIONS. This, he says, is the difference between HYDI devices and other devices of the same type on the market.

Electrolysis is an inefficient process of separating hydrogen from water, which means that more energy is needed from the engine than from burning hydrogen.

But that’s not the focus of the system. Hydrogen combustion consumes much less energy than diesel, and the flameite it produces travels 10 times faster in the combustion chamber than diesel. This will allow the air-to-diesel mixture to burn faster and more thoroughly, allowing the fuel to be used more efficiently.

HYDI said it had been developing and testing the system since 2013 and had been installed on prime rses, buses, garbage trucks, mining vehicles and generators across Australia, with one truck completing about 50,000 kilometres of inland transport.

Test results from the University of South Australia confirm the reduction in particulate emissions, and while it is unclear where fuel efficiency and CO emissions came from, Wilson said HYDI was producing on a small scale and planning for larger production facilities.

“Our trajectory is very clear, heavy industry has only one chance and we feel ready now,” Wilson said. We now have a dozen (devices) there, we’ve sold some and others are trialling. “