A Review of Hydrogen as a Fuel in Internal Combustion Engines
AZ
Shared by Adam Zar on Oct 31, 2025 • 04:34 PM UTC
NobleBlocks IDNB5279140A
Authors:,,
Behdad Shadidi
Gholamhassan Najafi
Talal Yusaf
Abstract
The demand for fossil fuels is increasing because of globalization and rising energy demands. As a result, many nations are exploring alternative energy sources, and hydrogen is an efficient and practical alternative fuel. In the transportation industry, the development of hydrogen-powered cars aims...
Highlights
-Hydrogen as a renewable energy option can reduce CO, UHC, CO2, and soot emissions in internal combustion engines, with NOx emissions potentially increasing.
-Hydrogen can be used as an auxiliary or secondary fuel to reduce emissions and improve engine efficiency in SI and CI engines.
-Direct injection systems for hydrogen offer the best performance among hydrogen delivery methods, but may introduce issues such as pre-ignition and combustion delay depending on operating conditions.
-Hydrogen’s high flame speed and diffusion characteristics can improve mixing and enable lean-burn operation, influencing volumetric efficiency and thermal performance.
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