PhD Candidate in Combustion of ammonia and hydrogen fuel mixtures in marine engine

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About the position

For a position as a PhD Candidate, the goal is a completed doctoral education up to an obtained doctoral degree.  

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The Department of Marine Technology at the Norwegian University of Science and Technology (NTNU) has a vacancy for a PhD Candidate to join the Marine Machinery group to work with the HYDROGENi . The main topic of the PhD is a detailed experimental and numerical study of the combustion of hydrogen and ammonia in an internal combustion engine.

As the world makes the transition to a low carbon society, industrial sectors are examining which energy carriers should be invested in. The marine sector options include batteries, zero carbon green fuels, synthetic fuels, and biofuels. The large variety of vessel types in the marine sector means that one technology is unlikely to be applicable to all. For some vessels batteries seem like a sensible option but for larger, long-range vessels, it is likely that the internal combustion engine (ICE) will be used for many years into the future. Therefore, it is critical that zero carbon fuels with favourable operational and emissions characteristics must be used. There are several candidate fuels gaining attention in this area, including ammonia and hydrogen. Ammonia (NH3) may be thought of as a hydrogen vector, essentially a molecularly bound method to store and transport hydrogen.

To utilize ammonia as a fuel it may need to be mixed with hydrogen to ensure efficient and complete combustion. The PhD project will focus on the ignition and emissions formation processes when an ammonia and hydrogen mixture is burnt inside an internal combustion. The main objective of the work will be to determine suitable fuel mixtures which achieve high combustion efficiencies and low emission of nitrogen oxides and nitrous oxide. To meet the objectives a mixture of experimental and numerical work will be conducted. The project will be used to develop new engines and support new numerical models describing combustion of the fuel mixture.

The successful candidate will conduct the project over a 3-year period under the supervision of Associate Professor David Emberson and Professor Eilif Pedersen.