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System Modelling of Organic Rankine Cycle for Waste Energy Recovery System in Marine Applications

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



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


Recent regulatory developments in the maritime industry will hasten the shift in usage of conventional marine fuels like HFO and MDO to a cleaner fuel like Liquefied Natural Gas (LNG) to meet its ambitious target of lowering carbon dioxide and other noxious gases emissions. Efficient use of energy and waste heat recovery and onboard a ship will help the industry meet this target in the meantime. This paper presents the findings from the modelling of a dual fuel marine diesel engine and ORC system cooled by vaporising LNG and simulation using a system engineering software, Siemens Simcenter Amesim 16. Engine manufacturer’s design data is used as inputs to run the ORC systems running on two working fluids, n-heptane and n-octane to derive the net work and thermal efficiency when installed on a LNG-fuelled Platform Supply Vessel. The ORC system running on n-heptane is found to provide an annual fuel savings of 7% with an estimated payback period of 2.7 years, making it an attractive option for shipowners.

Publication metadata

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

Publication type: Article

Publication status: Published

Journal: Energy Procedia

Year: 2019

Volume: 158

Pages: 1955-1961

Print publication date: 01/02/2019

Online publication date: 15/03/2019

Acceptance date: 02/04/2016

Date deposited: 12/11/2019

ISSN (print): 1876-6102

ISSN (electronic): 1876-6102

Publisher: Elsevier


DOI: 10.1016/j.egypro.2019.01.451


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