This hydrogen then can be used in hydrogen engines without the need for purification. For example, you might have a site where hydrogen can be produced on site using steam methane reforming and carbon capture and storing (CCS). This becomes handy for specific use cases. Hydrogen engines often are able to operate with lower grade hydrogen. Yes, both hydrogen engines and fuel cells use hydrogen fuel but there is more to this story. Hydrogen engines and fuel cells: Hydrogen fuel considerations As a result, they are not ideal for indoor use and require exhaust aftertreatments to reduce NOx emissions. Hydrogen engines release near zero, trace amounts of CO 2 (from ambient air and lubrication oil), but can produce nitrogen oxides, or NOx. This is a very attractive feature for vehicles operating in closed spaces or spaces with limited ventilation. Hydrogen engines and hydrogen fuel cells also have similar emissions profiles.įCEVs, actually, produce no emissions at all besides water vapor. Hydrogen engines and fuel cells: Similarities in emissions Fuel cells combined with battery packs can also accomplish the same. Hydrogen engines can also operate as standalone powertrain solutions and handle transient response demand without the need for a battery pack. Fuel cell electric vehicles can also capture energy through regenerative braking in very transient duty cycles, improving their overall efficiency. On the other hand, vehicles that frequently operate without any load-tow trucks or concrete mixer trucks, for example, may be more efficient with a fuel cell. So, for heavy trucks that tend to spend most of their time hauling the biggest load they can pull, internal combustion engines are usually the ideal and efficient choice. These range from heavy-duty trucking to construction. 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. The system can also be integrated with our existing battery electric LCV platform, meaning minimum variation and maximum synergies between the full battery-electric and the hydrogen versions.Regulations limiting greenhouse gas emissions (GHGs) from motor vehicles are tightening around the world. To preserve payload capacity, all components of the fuel cell propulsion system are external to the cargo space. Hydrogen provides the energy needed for extended driving range, while a medium capacity battery provides the power for dynamic performance in addition to energy recovery and plug-in capability. Given the profile of our customers, we have designed a mid-power architecture solution which delivers a range of more than 400 kilometers (certification pending) and refueling in just 3 minutes. This solution is particularly suited to the needs of light commercial vehicle (LCV) customers requiring long-range, fast refueling and zero-emissions.all without compromising payload capacity. Stellantis has developed a Hydrogen Fuel Cell Zero Emission solution which combines the advantages of hydrogen fuel cells and electric battery technology in a Fuel Cell Electric Vehicle (FCEV). Beyond electrification, Stellantis is pursuing a broad spectrum of energy carriers and powertrain technologies to address the widest range of mobility requirements.
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