Gas turbines in marine propulsion
Grigoryev, Stepan (2025)
Kandidaatintyö
2025
School of Energy Systems, Energiatekniikka
Kaikki oikeudet pidätetään.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2025043033735
https://urn.fi/URN:NBN:fi-fe2025043033735
Tiivistelmä
Marine propulsion is an industry that is driving our society and trade. Gas turbines provide an alternative to the ever-present diesel engine in the realm of marine propulsion, by providing a more compact and efficient way to produce power, that can also be used to reduce the emissions of the marine industry. In this thesis, a literature review is carried out to select the optimal cycle and performance parameters of a gas turbine for marine combustion, and a parametric study is carried out on a model of the cycle to determine the optimal configuration.
The results of the literature review reveal that the optimal solution for the selected case is the intercooled-recuperated cycle. The results of the parametric study highlighted the relationships between cycle efficiency and performance of the recuperator and intercooler, and how their sizing affects the location of the highest efficiency point of the cycle, both in terms of pressure ratio and turbine inlet temperature.
The results of the literature review reveal that the optimal solution for the selected case is the intercooled-recuperated cycle. The results of the parametric study highlighted the relationships between cycle efficiency and performance of the recuperator and intercooler, and how their sizing affects the location of the highest efficiency point of the cycle, both in terms of pressure ratio and turbine inlet temperature.