Heat transfer and carbon capture in maritime applications
Hnatiuk, Askold (2026)
2026
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-202604227367
https://urn.fi/URN:NBN:fi:amk-202604227367
Tiivistelmä
This thesis looks at heat exchanger selection for maritime carbon capture systems, with a focus on Plate & Shell Heat Exchanger (PSHE) technology. Three main questions are addressed: What technical factors decide whether a heat exchanger is suitable for shipboard CCS? How do PSHE-based solutions compare to other decarbonization options under current regulations? Which operational factors most influence shipowner decisions?
The work combines a technical comparison of heat exchanger types with a market review of maritime CCS deployment, including competing capture technologies and fleet adoption data. PSHEs have clear advantages in retrofit situations where available space is below 200 m³ and seawater cooling causes corrosion problems, but the higher cost limits their use to specific vessel types.
The baseline economic scenario in this thesis refers to the projected EU ETS carbon pricing for maritime transport through 2030, which makes CCS more cost competitive compared to fuel switching. Still, infrastructure gaps, regulatory uncertainty, and operational penalties are major barriers.
The best application cases are chemical carriers with high utilization on EUregulated routes. The main finding is not really about technical performance; it is that the vessels where PSHEs would help the most are also the ones where operators are most reluctant to spend the extra money.
The work combines a technical comparison of heat exchanger types with a market review of maritime CCS deployment, including competing capture technologies and fleet adoption data. PSHEs have clear advantages in retrofit situations where available space is below 200 m³ and seawater cooling causes corrosion problems, but the higher cost limits their use to specific vessel types.
The baseline economic scenario in this thesis refers to the projected EU ETS carbon pricing for maritime transport through 2030, which makes CCS more cost competitive compared to fuel switching. Still, infrastructure gaps, regulatory uncertainty, and operational penalties are major barriers.
The best application cases are chemical carriers with high utilization on EUregulated routes. The main finding is not really about technical performance; it is that the vessels where PSHEs would help the most are also the ones where operators are most reluctant to spend the extra money.