Life-Cycle Assessment and Costing of Fuels and Propulsion Systems in Future Fossil-Free Shipping

Kanchiralla, Fayas Malik,1989Department of Mechanics and Maritime Sciences, Maritime Environmental Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology (författare)

Future ships need to operate with low or possibly zero greenhouse gas (GHG) emissions while ensuring low influence on other environmental impacts and that the operation is economically feasible.This study conducts a life-cycle evaluation of potential decarbonization solutions involving selected energy carriers (electrolytic hydrogen, electro-ammonia, electro-methanol, and electricity) in different propulsion system setups (engines, fuel cells, and carbon capture technologies) in terms of environmental impact and costs.The results of the study show that the assessed decarbonization options are promising measures to reduce maritime GHG emissions with low-carbon-intensive electricity.The same order of GHG reduction is shown to be possible independent of the propulsion system and energy carrier used onboard.However, the carbon abatement cost ranges from 300 to 550 €/tCO2eq, and there is a trade-off with environmental impacts such as human toxicity (cancer and non-cancer effects) and freshwater ecotoxicity mainly linked with the wind infrastructure used for electricity production.Electro-ammonia in fuel cells is indicated to be effective in terms of the carbon abatement cost followed by the so-called HyMethShip concept.The higher abatement cost of all options compared to current options indicates that major incentives and policy measures are required to promote the introduction of alternative fuel and propulsion systems.

Brynolf, Selma,1984Department of Mechanics and Maritime Sciences, Maritime Environmental Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)selmab (författare)
Malmgren, Elin,1992Department of Mechanics and Maritime Sciences, Maritime Environmental Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)malelin (författare)
Hansson, JuliaIVL Svenska Miljöinstitutet,Department of Mechanics and Maritime Sciences, Maritime Environmental Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden;Sustainable Society, IVL Swedish Environmental Research Institute, Aschebergsgatan 44, SE-411 33 Göteborg, Sweden,IVL Svenska Miljöinstitutet AB,IVL Swedish Environmental Research Institute(Swepub:ivl)P010225 (författare)
Grahn, Maria,1963Department of Mechanics and Maritime Sciences, Maritime Environmental Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)np97magr (författare)
Department of Mechanics and Maritime Sciences, Maritime Environmental Sciences, Chalmers University of Technology, SE-412 96 Gothenburg, SwedenChalmers tekniska högskola (creator_code:org_t)

Ingår i:Environmental Science and Technology: American Chemical Society (ACS)56:17, s. 12517-125310013-936X1520-5851

Av författaren/redakt...: Kanchiralla, Fay ...; Brynolf, Selma, ...; Malmgren, Elin, ...; Hansson, Julia; Grahn, Maria, 19 ...

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