eprintid: 20487 rev_number: 3 eprint_status: archive userid: 1 dir: disk0/00/02/04/87 datestamp: 2026-01-29 07:32:29 lastmod: 2026-01-29 07:32:29 status_changed: 2026-01-29 07:32:29 type: article metadata_visibility: show creators_name: Balaji, Rajoo creators_name: Yaakob, Omar creators_name: Koh, Kho King creators_name: Adnan, Faizul Amri bin creators_name: Ismail, Nasrudin bin creators_name: Ahmad, Badruzzaman bin creators_name: Ismail, Mohd Arif bin title: A Study of Ballast Water Treatment Using Engine Waste Heat ispublished: pub keywords: Exhaust gases; Heat exchangers; Lagrange multipliers; Plankton; Ships; Waste heat; Waste treatment; Water; Water treatment; Availability analysis; Ballast water; Ballast water treatment; Engine waste heats; Heat exchanger design; Lagrangian methods; Species mortalities; Temperature range; Heat engines note: Cited by: 3 abstract: Heat treatment of ballast water using engine waste heat can be an advantageous option complementing any proven technology. A treatment system was envisaged based on the ballast system of an existing, operational crude carrier. It was found that the available waste heat could raise the temperatures by 25 °C and voyage time requirements were found to be considerable between 7 and 12 days to heat the high volumes of ballast water. Further, a heat recovery of 14–33 of input energies from exhaust gases was recorded while using a test rig arrangement representing a shipboard arrangement. With laboratory level tests at temperature ranges of around 55–75 °C, almost complete species mortalities for representative phytoplankton, zooplankton and bacteria were observed while the time for exposure varied from 15 to 60 s. Based on the heat availability analyses for harvesting heat from the engine exhaust gases(vessel and test rig), heat exchanger designs were developed and optimized using Lagrangian method applying Bell–Delaware approaches. Heat exchanger designs were developed to suit test rig engines also. Based on these designs, heat exchanger and other equipment were procured and erected. The species’ mortalities were tested in this mini-scale arrangement resembling the shipboard arrangement. The mortalities realized were > 95 with heat from jacket fresh water and exhaust gases alone. The viability of the system was thus validated. © 2018, The Institution of Engineers (India). date: 2019 publisher: Springer official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85064056436&doi=10.1007%2fs40032-018-0468-0&partnerID=40&md5=aee1ed9b8939156d079ce48a90ef3cc0 id_number: 10.1007/s40032-018-0468-0 full_text_status: none publication: Journal of The Institution of Engineers (India): Series C volume: 100 number: 2 pagerange: 255 – 269 refereed: TRUE issn: 22500545 citation: Balaji, Rajoo and Yaakob, Omar and Koh, Kho King and Adnan, Faizul Amri bin and Ismail, Nasrudin bin and Ahmad, Badruzzaman bin and Ismail, Mohd Arif bin (2019) A Study of Ballast Water Treatment Using Engine Waste Heat. Journal of The Institution of Engineers (India): Series C, 100 (2). 255 – 269. ISSN 22500545