Korea’s new hydrogen combustion engine, details and timeline – Popular Mechanics.
In the quest for vehicle fuel sources, Korea has taken the lead on crafting a combustion engine that runs on hydrogen. But it isn’t just Korea’s Kia and Hyundai—which have teamed to create a hydrogen combustion engine—moving forward on the concept. Volvo is now also planning on the design.
The technology is virtually already in place for hydrogen combustion engines, and both the driving ranges and refilling times are similar to that of traditional gasoline-powered combustion engines.
Moving toward hydrogen combustion is a different approach than searching for a hydrogen fuel cell. In the combustion version, the engine burns hydrogen to produce power through combustion like a conventional engine, whereas fuel cells use a chemical process to convert hydrogen into electricity. The combustion strategy also takes up less physical space than a fuel cell system, and doesn’t require the many new systems that a fuel would need to convert hydrogen to electricity and power an electric motor.
The combustion process still needs a little help, however. Volvo plans to use a type of biodiesel as a pilot fuel to ignite the combustion chamber, causing an explosion that drives the pistons. The engines must manage the high temperatures of that hydrogen combustion, which may require a more intricate engine design, better fuel-injection technology, and more hydrogen-friendly materials.
Kia and Hyundai are working together on an engine that they may have ready for passenger cars in 2025, while Volvo plans to have on-road tests in trucks in 2026.
Jan Hjelmgren, Volvo Trucks head of product management and quality, said in a statement, said:
Trucks where the traditional internal combustion engine remains but runs on hydrogen will have the same performance and reliability as our diesel trucks, but with the added benefit of very low CO2 emissions.
“They will be a valuable complement to our battery electric trucks.”
Detractors of the hydrogen combustion push say that the new fuel source doesn’t solve the pollution dilemma in automobiles, as the hydrogen technology still has an emission output. Volvo, however, states that by using the right renewable materials, they can get a hydrogen combustion engine to fall within the “zero emission vehicle” category as set by European Union standards.
READ the latest news shaping the hydrogen market at Hydrogen Central
Korea’s new hydrogen combustion engine, details and timeline – Popular Mechanics. source
