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Bränsle-ekonomisk studie för framdriftsmotorn ombord på M/T Ramona
Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
2021 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Fuel economic study for the propulsion engine on board M/T Ramona (English)
Abstract [sv]

Detta är en studie med syfte att visa vid vilka driftsförhållanden fartyget M/T Ramonas framdriftsmotor driver fartyget som mest bränsleeffektivt och på så sätt även med minst miljöpåverkan genom avgasutsläpp (Havsmiljöinstitutet, 2017). Dessa två driftsförhållande är lastad samt olastad kondition. Fartyget har under studien körts med så kallat combinator mode och har haft sin strömförsörjning via en axelgenerator. Resultatet baseras på 12 veckors datainsamling.Efter att all data samlats in och uträkningar analyserats, har ett resultat per kondition kunnat presenteras med hjälp utav figurer. Den slutsats som kunde dras var att, vid lastad kondition driver framdriftsmotorn fartyget som mest effektivt vid en belastning på 46 till 48 procent och en hastighet på 10.5 knop. Dock finns en felmarginal då tester inte tilläts vid lägre belastningar på framdriftsmotorn vid tiden för studien. Slutsatsen som drogs för den olastade konditionen var att framdriftsmotorn driver fartyget som mest bränsleeffektivt vid en belastning på 34 till 38 procent och en hastighet på 8.3 knop.

Abstract [en]

This is a study aimed at showing the operating conditions at which the M/T Ramonas propulsion engine is operated most fuel efficient and thus also with the least environmental impact through exhaust emissions (Havsmiljöinstitutet, 2017). These two operating conditions are loaded and unloaded condition. During the study, the ship has been run in so-called combinator mode and has had its electricity generated via a shaft generator. The result is based on 12 weeks of data collection. After all the data has been collected and calculations has been analyzed, a result per condition has been presented using figures. The conclusion that could be drawn was that, at loaded condition, the propulsion engine is driven most fuel efficiently at a load of 46 to 48 percent and at a speed of 10.5 knots. However, there is a margin of error as tests were not allowed at lower loads on the propulsion engine at the time of the study. The conclusion reached for the unloaded condition was that the propulsion engine is driven most fuel-efficient at a load of 34 to 38 percent and at a speed of 8.3 knots.

Place, publisher, year, edition, pages
2021. , p. 24
Keywords [en]
M/T Ramona, fuel economy, propulsion engine, environmental impact, exhaust emission
Keywords [sv]
M/T Ramona, bränsleekonomi, framdriftsmotor, miljöpåverkan, avgasutsläpp
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-106212OAI: oai:DiVA.org:lnu-106212DiVA, id: diva2:1586689
Subject / course
Chief Engineer
Educational program
Marine Engineering Programme (4 years) with onboard practical training placement, 180 credits
Presentation
2021-06-30, Zoom, 09:13 (Swedish)
Supervisors
Examiners
Available from: 2021-08-23 Created: 2021-08-20 Last updated: 2021-08-23Bibliographically approved

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CiteExportLink to record
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