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Modelling and Simulation of Organic Rankine Cycle for Waste Heat Recovery of an Offshore Supply Vessel

Lookup NU author(s): Dr ChunWee Ng, Dr Ivan CK TamORCiD


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Organic Rankine cycle (ORC) involves using an organic fluid like hydrocarbon or refrigerant as the working fluid to generate electrical power from waste heat energy from diesel engines. Compared to water, the organic fluid has lower boiling point with lower specific heat of vaporisation, meaning that it is able to exploit waste heat of lower temperatures like HT cooling water and lubrication oil thereby improving the overall energy efficiency by utilising waste heat from low to medium temperature sources. As there is room for optimisation due to the possibility of using different organic fluids for different waste heat temperatures, a commercial multi-disciplinary 1D software called LMS Imagine.Lab Amesim which is based on model-based systems engineering is used to derive the optimised system design for the waste heat recovery system. As a case study, operating data like exhaust and cooling water temperatures from a seagoing offshore service vessel is used as input to the models of the ORC in this software and a study is made to check the feasibility of its installation using the system engineering approach.

Publication metadata

Author(s): Ng CW, Tam ICK, Wu D

Editor(s): The Royal Institution of Naval Architects

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: International Conference on Computer Applications in Shipbuilding (ICCAS 2017)

Year of Conference: 2017

Print publication date: 26/09/2017

Online publication date: 29/09/2017

Acceptance date: 31/07/2017

Publisher: The Royal Institution of Naval Architects


Sponsor(s): AVEVA; SIEMENS