You can read more examples of hydrogen engines in mobility and transportation. FCEVs, in contrast, are most efficient at lower loads. Internal combustion engines tend to be most efficient under high load-which is to say, when they work harder. Hydrogen engines and hydrogen fuel cells offer complementary use cases. Hydrogen engines and fuel cells: Complementary use-cases You can read more about how hydrogen engines work if interested.įuel cell hydrogen vehicles (FCEVs) generate electricity from hydrogen in a device known as a fuel cell, and use that electricity in an electric motor much like an electric vehicle. Hydrogen internal combustion engines (Hydrogen ICE) are nearly identical to traditional spark-ignition engines. Hydrogen engines burn hydrogen in an internal combustion engine, in just the same way gasoline is used in an engine. Hydrogen engines and fuel cells: Similarities and differences in how they work?īoth hydrogen internal combustion engines and hydrogen fuel cells can power vehicles using hydrogen, a zero-carbon fuel. Given medium and heavy-duty trucks are a major source of CO 2 emissions, the transportation sector’s journey to destination zero features both technologies.Īs more truck makers join the ranks of auto companies developing CO 2-free or CO 2-neutral alternative to gasoline and diesel vehicles, let’s look at the similarities and differences between hydrogen engines and fuel cells. With this, both hydrogen engines and hydrogen fuel cells are receiving an increasing interest. Regulations limiting greenhouse gas emissions (GHGs) from motor vehicles are tightening around the world.
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