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dc.contributor.authorImhoff, TB
dc.contributor.authorGkantonas, Savvas
dc.contributor.authorMastorakos, Epaminondas
dc.date.accessioned2021-11-11T00:30:12Z
dc.date.available2021-11-11T00:30:12Z
dc.date.issued2021-11
dc.identifier.issn1996-1073
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/330543
dc.description.abstract<jats:p>This study develops system-level models of ammonia-fuelled powertrains that reflect the characteristics of four oceangoing vessels to evaluate the efficacy of ammonia as an alternative fuel in the marine environment. Relying on thermodynamics, heat transfer, and chemical engineering, the models adequately capture the behaviour of internal combustion engines, gas turbines, fuel processing equipment, and exhaust aftertreatment components. The performance of each vessel is evaluated by comparing its maximum range and cargo capacity to a conventional vessel. Results indicate that per unit output power, ammonia-fuelled internal combustion engines are more efficient, require less catalytic material, and have lower auxiliary power requirements than ammonia gas turbines. Most merchant vessels are strong candidates for ammonia fuelling if the operators can overcome capacity losses between 4% and 9%, assuming that the updated vessels retain the same range as a conventional vessel. The study also establishes that naval vessels are less likely to adopt ammonia powertrains without significant redesigns. Ammonia as an alternative fuel in the marine sector is a compelling option if the detailed component design continues to show that the concept is practically feasible. The present data and models can help in such feasibility studies for a range of vessels and propulsion technologies.</jats:p>
dc.publisherMDPI AG
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleAnalysing the performance of ammonia powertrains in the marine environment
dc.typeArticle
prism.issueIdentifier21
prism.publicationDate2021
prism.publicationNameEnergies
prism.volume14
dc.identifier.doi10.17863/CAM.77987
dcterms.dateAccepted2021-11-05
rioxxterms.versionofrecord10.3390/en14217447
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2021-11-01
dc.contributor.orcidGkantonas, Savvas [0000-0002-5354-578X]
dc.contributor.orcidMastorakos, Epaminondas [0000-0001-8245-5188]
dc.identifier.eissn1996-1073
rioxxterms.typeJournal Article/Review
cam.issuedOnline2021-11-08


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International