eprintid: 20484
rev_number: 3
eprint_status: archive
userid: 1
dir: disk0/00/02/04/84
datestamp: 2026-01-29 07:32:28
lastmod: 2026-01-29 07:32:28
status_changed: 2026-01-29 07:32:28
type: article
metadata_visibility: show
creators_name: Balaji, Rajoo
creators_name: Yaakob, Omar
creators_name: Adnan, Faizul Amri
creators_name: Koh, K.K.
title: Design verification of heat exchanger for ballast water treatment
ispublished: pub
note: Cited by: 3; All Open Access, Gold Open Access
abstract: Using waste heat from ship's engines is one of the methods considered for heat treatment of ballast water. For such a system harvesting the engine exhaust heat, a heat exchanger will be vital. Design optimisation of a heater employing exhaust gases of the engine as utility fluid and ballast sea water as the process fluid was achieved using Lagrangian methods, keeping the annual cost as the objective function. Costs for installation, maintenance as also costs for the utility and process fluids were considered. Heat balance data, specific fuel consumption values from a typical operational ship and current fuel costs were considered for the design. The thermodynamic and geometric designs were worked out using computer based software for comparing the designs. Costs were also computed using a different approach for all the designs. Since the amount of heat transferred was specified and the application was limited to a single process, direct cost method was used for the computation. The objective function values obtained from Lagrangian equations were compared with the values obtained from direct cost computations. From the optimal designs, choice was justified based on annual cost, optimum exit temperature of shell side fluid and optimum mass flow of tube side fluid. © 2014 Penerbit UTM Press. All rights reserved.
date: 2014
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893015366&doi=10.11113%2fjt.v66.2485&partnerID=40&md5=e68a30bad5acb0cba28d534189b5ce13
id_number: 10.11113/jt.v66.2485
full_text_status: none
publication: Jurnal Teknologi (Sciences and Engineering)
volume: 66
number: 2
pagerange: 61 – 65
refereed: TRUE
issn: 21803722
citation:   Balaji, Rajoo and Yaakob, Omar and Adnan, Faizul Amri and Koh, K.K.  (2014) Design verification of heat exchanger for ballast water treatment.  Jurnal Teknologi (Sciences and Engineering), 66 (2).  61 – 65.  ISSN 21803722