Waste heat recovery (WHR) is a promising solution for efficient, cost-effective and environmentally friendly power generation on-board oceangoing vessels. However, the installation of such systems increases significantly the complexity of the power-plant, while the design may be affected by the operational behaviour, e.g. slow steaming. To address all those issues simultaneously in an integrated manner we have developed a model of the system using a modular library of reconfigurable component models suitable for design and performance analyses. The model was used to perform model-based techno-economic assessment and optimisation of WHR options for a 13000 TEU containership, currently under slow-steaming. It was indicated that there is clear potential for installing a WHR system in such vessel, based on net present value and payback period. However, the optimal configuration depends strongly on the operational profile and slow steaming conditions. The optimal operation of the WHR-system in partial loads was also estimated and its minimum operational load was calculated.
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