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A feasibility analysis of waste heat recovery systems for marine applications

Francesco Baldi (Institutionen för sjöfart och marin teknik, Maritime Operations ) ; Cecilia Gabrielii (Institutionen för sjöfart och marin teknik, Maritime Operations )
Energy (0360-5442). Vol. 80 (2015), p. 654-665.
[Artikel, refereegranskad vetenskaplig]

The shipping sector is today facing challenges which require a larger focus on energy efficiency and fuel consumption. In this article, a methodology for performing a feasibility analysis of the installation of a WHR (waste heat recovery) system on a vessel is described and applied to a case study vessel. The method proposes to calculate the amount of energy and exergy available for the WHR systems and to compare it with the propulsion and auxiliary power needs based on available data for ship operational profile. The expected exergy efficiency of the WHR system is used as an independent variable, thus allowing estimating the expected fuel savings when a detailed design of the WHR system is not yet available. The use of the proposed method can guide in the choice of the installation depending on the requirements of the owner in terms of payback time and capital investment. The results of the application of this method to the case study ship suggest that fuel savings of 5%–15% can realistically be expected, depending on the sources of waste heat used and on the expected efficiency of the WHR system.

Nyckelord: Waste heat recovery, Marine propulsion system, Feasibility analysis, Operational profile, Low carbon shipping



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Denna post skapades 2015-01-13. Senast ändrad 2016-01-12.
CPL Pubid: 210619

 

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Institutioner (Chalmers)

Institutionen för sjöfart och marin teknik, Maritime Operations (2012-2014)

Ämnesområden

Energi
Transport
Hållbar utveckling
Mekanisk energiteknik
Termisk energiteknik

Chalmers infrastruktur

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Modelling, analysis and optimisation of ship energy systems