Monitoring & metering Researchers investigate


ammonia fuel for marine decarbonisation


A


group of academic and industrial partners have been awarded a £5.5million grant by the Engineering and Physical Sciences Research Council (EPSRC) to


accelerate understanding, technologies and policies relating to the use of ammonia as a sustainable fuel. The project begins in June 2022 and will run for five years. Entitled ‘Decarbonised Clean Marine: Green


Ammonia Thermal Propulsion (MariNH3)’, the project brings together academics from Nottingham, Birmingham, Brighton, Cardiff and STFC, as well as partners such as regulators, oil companies, engine manufacturers and other industrial organisations. The lead investigator is Prof. Alasdair Cairns,


who is chair in Propulsion Systems in the Faculty of Engineering at the University of Nottingham, where the majority of the research is being undertaken. Explaining the importance of this work,


Cairns says: “As countries seek opportunities for decarbonisation, there is a great deal of interest in green ammonia as an energy vector and a fuel for commercial shipping. However, there are a number of considerations relating to the greenhouse gas emissions of international shipping. Roughly 80 per cent of the emissions from the maritime sector are emitted by larger commercial vessels (i.e. Megawatt scale engines), where alternative solutions such as electric and fuel cell remain limited in energy density and/or cost. This challenge is compounded by the fact that the engines in these vessels typically remain in service for several decades. “Ammonia represents an attractive solution,


but significant challenges remain around slow combustion and the emissions of NOx, and it is these challenges we wish to address through research in fast burning and ultra-low NOx combustion systems. “As a group, the MariNH3 consortium firmly


believes that a mix of technologies will be required for the most effective decarbonisation of the marine sector because there is no ‘silver bullet’ fuel or technology to shortcut the path to Net Zero. “Ammonia is set to play a key role, but there is current concern with the approach being


42 August 2022 Instrumentation Monthly


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