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Experimental study of liquid ammonia injection timing in rapeseed methyl ester dual injection engine (2025)
Journal Article
Nadimi, E., Przybyla, G., Wu, D., & Adamczyk, W. (2025). Experimental study of liquid ammonia injection timing in rapeseed methyl ester dual injection engine. Energy, 335, Article 137919. https://doi.org/10.1016/j.energy.2025.137919

Ammonia, a promising carbon-free fuel, offers practical advantages over hydrogen, such as liquid-phase storage, making it suitable for direct use in compression ignition engines. As a hydrogen carrier, ammonia has the potential to decarbonise interna... Read More about Experimental study of liquid ammonia injection timing in rapeseed methyl ester dual injection engine.

Catalytic Ammonia Combustion: Legacy Catalytic Burner Designs and Catalyst Requirements for In Situ Hydrogen Production (2025)
Journal Article
Al Sadi, K., Nadimi, E., & Wu, D. (2025). Catalytic Ammonia Combustion: Legacy Catalytic Burner Designs and Catalyst Requirements for In Situ Hydrogen Production. Energies, 18(13), Article 3505. https://doi.org/10.3390/en18133505

Ammonia is increasingly recognised as a promising carbon-free fuel and hydrogen carrier due to its high hydrogen content, ease of liquefaction, and existing global infrastructure. However, its direct utilisation in combustion systems poses significan... Read More about Catalytic Ammonia Combustion: Legacy Catalytic Burner Designs and Catalyst Requirements for In Situ Hydrogen Production.

Development of ammonia-biodiesel fueled agricultural tractor: Aspects of retrofitting a compression ignition engine to direct ammonia injection (2025)
Journal Article
Pasternak, M., Przybyła, G., Siddareddy, R., Lewandowski, M., Bjørgen, K., Mauss, F., Nadimi, E., Peczkis, G., Zhou, M.-M., & Adamczyk, W. (2025). Development of ammonia-biodiesel fueled agricultural tractor: Aspects of retrofitting a compression ignition engine to direct ammonia injection. Energy, 327, Article 136255. https://doi.org/10.1016/j.energy.2025.136255

The automotive industry has shown growing interest in ammonia as a carbon-free fuel, which holds potential for mitigating the greenhouse effect. Nonetheless, adapting current combustion engines to use ammonia necessitates prior modifications. This pa... Read More about Development of ammonia-biodiesel fueled agricultural tractor: Aspects of retrofitting a compression ignition engine to direct ammonia injection.

Genetic algorithm-assisted multi-objective optimization for developing a Multi-Wiebe Combustion model in ammonia-diesel dual fuel engines (2025)
Journal Article
Zhang, Y., Wu, D., Nadimi, E., Tsolakis, A., Przybyla, G., & Adamczyk, W. (2025). Genetic algorithm-assisted multi-objective optimization for developing a Multi-Wiebe Combustion model in ammonia-diesel dual fuel engines. Energy, 325, Article 136181. https://doi.org/10.1016/j.energy.2025.136181

Direction Injection Dual-Fuel (DIDF) engines fueled with ammonia and diesel are identified as a promising solution for decarbonizing large-scale Compression Ignition (CI) engines. This study addresses the research gap of missing a parametric model fo... Read More about Genetic algorithm-assisted multi-objective optimization for developing a Multi-Wiebe Combustion model in ammonia-diesel dual fuel engines.

Parameter sensitivity analysis for diesel spray penetration prediction based on GA-BP neural network (2024)
Journal Article
Zhang, Y., Zhang, G., Wu, D., Wang, Q., Nadimi, E., Shi, P., & Xu, H. (2024). Parameter sensitivity analysis for diesel spray penetration prediction based on GA-BP neural network. Energy and AI, 18, Article 100443. https://doi.org/10.1016/j.egyai.2024.100443

Machine learning has started to be used in engine research to optimize combustion and predict fuel spray characteristics. This paper presents the development of a machine learning model using a Genetic Algorithm-Backpropagation (GA-BP) neural network... Read More about Parameter sensitivity analysis for diesel spray penetration prediction based on GA-BP neural network.

Effects of biodiesel injector configuration and its injection timing on performance, combustion and emissions characteristics of liquid ammonia dual direct injection engine (2024)
Journal Article
Nadimi, E., Przybyła, G., Løvås, T., & Adamczyk, W. (2024). Effects of biodiesel injector configuration and its injection timing on performance, combustion and emissions characteristics of liquid ammonia dual direct injection engine. Journal of the Energy Institute, 114, Article 101605. https://doi.org/10.1016/j.joei.2024.101605

Ammonia is a promising carbon-neutral fuel that can be stored and transported in liquid form, offering a viable alternative to diesel fuel. In addition, it can be used directly in diesel engine in its liquid form in dual fuel mode. Hence, a single-cy... Read More about Effects of biodiesel injector configuration and its injection timing on performance, combustion and emissions characteristics of liquid ammonia dual direct injection engine.

Experimental and numerical study on direct injection of liquid ammonia and its injection timing in an ammonia-biodiesel dual injection engine (2023)
Journal Article
Nadimi, E., Przybyła, G., Løvås, T., Peczkis, G., & Adamczyk, W. (2023). Experimental and numerical study on direct injection of liquid ammonia and its injection timing in an ammonia-biodiesel dual injection engine. Energy, 284, Article 129301. https://doi.org/10.1016/j.energy.2023.129301

Ammonia is an alternative carbon-free fuel that can be easily stored in a liquid phase, unlike hydrogen, and then directly utilized in diesel engines. Hence, a single-cylinder diesel engine was retrofitted for direct injection of liquid ammonia with... Read More about Experimental and numerical study on direct injection of liquid ammonia and its injection timing in an ammonia-biodiesel dual injection engine.

Effects of using ammonia as a primary fuel on engine performance and emissions in an ammonia/biodiesel dual-fuel CI engine (2022)
Journal Article
Nadimi, E., Przybyła, G., Emberson, D., Løvås, T., Ziółkowski, Ł., & Adamczyk, W. (2022). Effects of using ammonia as a primary fuel on engine performance and emissions in an ammonia/biodiesel dual-fuel CI engine. International Journal of Energy Research, 46(11), 15347-15361. https://doi.org/10.1002/er.8235

Ammonia is a promising alternative fuel that can replace current fossil fuels. Hydrogen carrier, zero carbon base emissions, liquid unlike hydrogen, and can be produced using renewable resources, making ammonia a future green fuel for the internal co... Read More about Effects of using ammonia as a primary fuel on engine performance and emissions in an ammonia/biodiesel dual-fuel CI engine.