Thermo-economic optimization of an ORC system for a dual-fuel marine engine

Mehmet Akman, Selma Ergin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, thermodynamic, economic and environmental analyses of the scavenge air cooling water driven waste heat recovery system (WHRS) based on organic Rankine cycle (ORC) are conducted for a dual-fuel marine engine integrated with the EGR unit. R245fa, R236ea, R600a, R601a, R1234ze and R1234yf are selected as the working fluids. Thermo-economic performances of the fluids are analyzed, opti¬mized and compared under various engine operating conditions. In addition, the mass and volume of the system along with the safety factors of the working fluids are evaluated to judge the physical applicability of the system for ships. According to the results, scavenge air has a significant amount of waste heat at medium and heavy loads and switching the engine mode remarkably affects the performance of the WHRS. R601a shows the best thermo-economic performance, however, considering the applicability of the system R236ea is the most suitable working fluid for the ORC WHRS.

Original languageEnglish
Title of host publicationSustainable Development and Innovations in Marine Technologies - Proceedings of the 19th International Congress of the International Maritime Association of the Mediterranean, IMAM 2022
EditorsSelma Ergin, C. Guedes Soares
PublisherCRC Press/Balkema
Pages437-444
Number of pages8
ISBN (Print)9781032416182
DOIs
Publication statusPublished - 2023
Event19th International Congress of the International Maritime Association of the Mediterranean, IMAM 2022 - Istanbul, Turkey
Duration: 26 Sept 202229 Sept 2022

Publication series

NameSustainable Development and Innovations in Marine Technologies - Proceedings of the 19th International Congress of the International Maritime Association of the Mediterranean, IMAM 2022

Conference

Conference19th International Congress of the International Maritime Association of the Mediterranean, IMAM 2022
Country/TerritoryTurkey
CityIstanbul
Period26/09/2229/09/22

Bibliographical note

Publisher Copyright:
© 2023 the Author(s).

Keywords

  • Applicability analysis
  • Dual-fuel
  • LNG
  • Marine waste heat recovery
  • ORC
  • Thermo-economic optimization

Fingerprint

Dive into the research topics of 'Thermo-economic optimization of an ORC system for a dual-fuel marine engine'. Together they form a unique fingerprint.

Cite this