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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10990/709

Autori: Daniotti, Silvia
Supervisore afferente all'Università: PINAMONTI, PIERO
Titolo: Innovative engine configurations and waste heat recovery solutions employed on large cruise ship to meet new environmental regulations
Abstract (in inglese): Due to recent regulations imposed by IMO (Int. Maritime Org.), pollution emissions produced by large ships are now under strict control, and a widening part of the seas (called SECA) is now accessible only by ships with a limited SOx and NOx output. To meet the new regulations, ships propelled by HFO burning Internal Combustion Engines (ICEs) can be equipped with abatement devices such as scrubbers and SCR systems. Although the employment of those devices seems to be the route ship-owners will prefer, other methods can be considered such as the use of MGO, a more expensive fuel but with lower sulphur content. The use of MGO allows considering a further and more drastic modification of the power system, namely the use of Gas Turbines (GTs) in place of ICEs. Gas Turbines, despite of being less efficient, are much lighter, more compact, and can easier reach low NOx emissions than ICEs. Even if these aspects are theoretically well known, there are still difficulties in finding studies reporting quantitative analysis (weight, dimensions, fuel consumption) that compare GTs and ICEs power systems employed on board. The present thesis aims at providing these data by analyzing different solutions applied to a real case. Unlike other studies, the work is focused on a cruise ship rather than on a cargo ship, because cruise ship’s operation profile is more variable during the trip. Finally, solutions to minimize the gap of fuel consumption between GTs and ICEs is also discussed.
Parole chiave: Ship Propulsion; Gas Turbines; IMO; Waste heat recovery; Weight reduction
MIUR : Settore ING-IND/09 - Sistemi Per L'Energia E L'Ambiente
Lingua: eng
Data: 15-apr-2016
Corso di dottorato: Dottorato di Scienze dell'ingegneria energetica e ambientale
Ciclo di dottorato: 28
Università di conseguimento titolo: Università degli Studi di Udine
Luogo di discussione: Udine
Altre informazioni: Co-supervisori: Mauro Reini, Alessandro Armellini
Citazione: Daniotti, S. Innovative engine configurations and waste heat recovery solutions employed on large cruise ship to meet new environmental regulations. (Doctoral Thesis, Università degli Studi di Udine, 2016).
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