Photo: Nikhil Sharma
In her doctoral dissertation Niina Kuittinen examined how different marine fuels and exhaust after treatment technologies influence the ship engine exhaust aerosol that affects the climate and human health. Through measurements on a test engine and modern cruise ships, her work shows that traditional heavy fuel oil produces large numbers of ultrafine particles, while cleaner fuels such as liquefied natural gas and technologies like scrubbers and wet electrostatic precipitation can reduce particle emissions and simultaneously modify the exhaust aerosol properties. The results are important because by applying global modelling, particle number emissions from ships were found to be comparable in magnitude to other anthropogenic continental sources, and they also have effects on both climate and human health. The findings support policymakers, ship operators, and technology developers in designing effective strategies to reduce the environmental and health impacts of global shipping.
The doctoral dissertation of MSc (Tech) Niina Kuittinen in the field of Aerosol Physics titled Characterisation of Climate and Health Relevant Properties of Exhaust Aerosols from Ship Engines - Effects of Fuels and After-Treatment Technologies will be publicly examined at the Faculty of Engineering and Natural Sciences at Tampere University.
The Opponent will be Professor Huan Liu from the Tsinghua University in China. The Custos will be Professor Topi Rönkkö from Faculty of Engineering and Natural Sciences.