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HYDI - Hydrogen on Demand for Diesel Combustion Engines
Retrofit heavy machinery with the HYDI unit to optimise diesel combustion, reduce environmental emissions, increase fuel efficiency.
This industry leading fuel cell technology creates and injects hydrogen to the engine on demand using advanced hydrogen fuel cells.
Innovative Hydrogen Technology for Cleaner, Greener Vehicles
Turn distilled water into hydrogen and cost savings
How does hydrogen direct injection technology work?
Hydrogen Direct Injection (HDI) is a technology designed to enhance the efficiency and reduce emissions of internal combustion engines, particularly diesel engines. This system injects hydrogen directly into the combustion chamber, allowing for a more complete and efficient burn of the fuel.
Hydrogen Production
The HYDI system generates hydrogen on demand through electrolysis, using distilled water and a low electrical input from the onboard battery. This removes the need for onboard hydrogen storage, addressing safety and logistical concerns typically associated with hydrogen fuel.
Injection Process
Hydrogen is injected into the engine prior to combustion. This can be done at varying pressures and timings, which are controlled by an electronic control unit (ECU). The ECU adjusts the flow rate based on engine demands, optimizing performance across different operating conditions.
Combustion Dynamics
The introduction of hydrogen improves the combustion characteristics. Hydrogen has a faster combustion rate and a higher energy content compared to diesel. When injected, it promotes a more complete burn of the diesel fuel, leading to increased power output while reducing unburned hydrocarbons.
How does HYDI improve engine efficiency?
Enhanced Combustion
The rapid ignition of hydrogen leads to improved thermal efficiency. Studies have shown that optimizing injection timing can enhance thermal efficiency by up to 2.6% while significantly reducing nitrogen oxides (NOx) emissions.
Improved Power Output
Hydrogen's high energy content allows for greater power generation from less fuel. This results in up to 10% more torque and overall engine performance without increasing fuel consumption.
Reduced Fuel Consumption
Real-world applications have demonstrated that vehicles equipped with HDI systems can achieve fuel savings of approximately 10-14%.
How does retrofitting a diesel engine with HYDI reduce emissions?
Lower CO2 Emissions
The Australian Government measured that every 1L of diesel produces around 2.67kg of CO2. Introducing hydrogen to the combustion of diesel fuel can reduce fuel consumption by up to 14%.
According to the Australian Bureau of Statistics The average articulated truck operating in Australia consumes 53L of diesel per 100km and travels an average of 78,000km per year.
Reducing fuel consumption by 14% will result in 15,800kg less CO2 emissions, per truck, per year.
Reduction in Particulate Matter
The improved combustion process reduces the production of diesel particulate matter (DPM) by burning off carbon that would otherwise contribute to soot and other harmful emissions. In trials, reductions in DPM have been reported as high as 80%.
Hear what our clients say
These real world results show that the HYDI unit has saved these clients thousands in fuel costs, increased operational efficiency and drastically reduced their carbon emissions.
“I strongly recommend that all Truck owner/drivers look at the HYDI product and experience the change to Hydrogen On Demand for themselves, I am sure they will be incredibly happy"
Hilands recently added a Mercedes Euro 6 Actros to their fleet and installed a HYDI hydrogen unit for a trial.
After testing, the drivers noted significant performance improvements, including increased power on inclines, smoother engine operation, and no acceleration issues, even with an added 25-ton weight.
They also reported fuel savings, using a third less fuel on the same route, despite carrying a heavier load. Impressed by the results, they plan to install more units across their fleet and highly recommend the HYDI product to other truck owners.
Download Torrens Transit HYDI Trial PDF"Bus 1560 has set a new standard in Adelaide Metro Bus performance [with the HYDI unit fitted]"
Bus driver at St Agnes Depot, Adelaide
A measured trial with Torrens Transit revealed the extent of the savings and carbon emission reduction across a range of their fleet vehicles including the Scania Model K280UB at St Agnes Depot, Adelaide.
The following reduction in exhaust emissions were measured using the Drager EM200 gas analyser with the HYDI unit on and off:
NO2: 73.2% reduction
NOx: 21.6% reduction
NO: 23.8% reduction
CO: 58.3% reduction
Additionally, a recorded fuel reduction of 15.5% would yield an annual return on investment of 28.6% over a fleet of 20 diesel trucks
Download the Holcim Media Release PDF"On top of the fuel consumption figures, excitingly, we’re seeing the additional emission reductions of:
17% less carbon dioxide (CO2)
80% lower diesel particulate matter (DPM)
22% lower nitrogen oxides (NOX)
and 25% lower carbon monoxide (CO)"
Adam Evans
Logistics Manager for Aggregates Western Australia at Holcim
"Holcim has seen fuel performance savings estimated at 15% when hauling payloads up to 100-tonnes in three-trailer combinations. The Scania onboard management system confirms these figures. The reductions in fuel burn and reductions in emissions, is entirely in line with our aim at Scania to reduce emissions during the entire working lives of our products"
Robert Taylor
Australia Mining General Manager at Scania
Holcim Australia, in partnership with Scania and HYDI, implemented a project to decarbonize its logistics chain in the remote Pilbara region using the HYDI Hydrogen on Demand system. This system was retrofitted to Scania prime movers used for hauling quarry materials across vast distances. The HYDI units produce hydrogen from distilled water through electrolysis, supplementing diesel fuel for a cleaner and more efficient combustion process.