Skip to content

Experimental Activities on a Hydrogen-Fueled Spark-Ignition Engine for Light-Duty Applications


The increase in the overall global temperature and its subsequent impact on extreme weather events are the most critical consequences of human activity. In this scenario, transportation plays a significant role in greenhouse gas (GHG) emissions, which are the main drivers of climate change. The decline of non-renewable energy sources, coupled with the aim of reducing GHG emissions from fossil fuels, has forced a shift towards a net-zero emissions economy. As an example of this transition, the European Union has set 2050 as the target for achieving carbon neutrality. Hydrogen (H2 ) is gaining increasing relevance as one of the most promising carbon-free energy vectors. If produced from renewable sources, it facilitates the integration of various alternative energy sources for achieving a carbon-neutral economy. Recently, interest in its application to the transportation sector has grown, including different power plant concepts, such as fuel cells or internal combustion engines. Despite exhibiting significant drawbacks, such as low density, combustion instabilities, and incompatibilities with certain materials, hydrogen is destined to become one of the future fuels. In this publication, experimental activities are reported that were conducted on a sparkignition engine fueled with hydrogen at different operating points. The primary objective of this research is to gain a better understanding of the thermodynamic processes that control combustion and their effects on engine performance and pollutant emissions. The results show the emission levels, performance, and combustion characteristics under different conditions of dilution, load, and injection strategy and timing.

Funding source: This research has been partially funded by Agencia Estatal de Investigación of the Spanish Government through projects PID2020-118387RB-C31 (AHEAD) and TED2021-130596B-C21 (BIOH2FUEL). M. Olcina-Girona is partly supported by the grant CIACIF/2021/437 of the “Subvenciones para la contratación de personal investigador predoctoral (ACIF)” of the Conselleria d’Innovació, Universitats, Ciència i Societat Digital de la Generalitat Valenciana.
Related subjects: Applications & Pathways
Countries: Spain

Article metrics loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error