FEASIBILITY STUDY OF INSTALLATION OF BALLAST WATER TREATMENT SYSTEM USING WASTE HEAT ONBOARD

Abstract

As mention before, the mortality of the aquatic organism will lose their mortality at the temperature of 740C where in this temperature all the organism is consider dead. To make sure the ballast water temperature rises to that point, the waste heat from the funnel of HRSG known as heat recovery steam generator is channeled through a piping toward the heat exchanger unit that will heat the ballast water during discharging phase. The length, diameter and thickness of the pipe must be considered so it will be resulting towards the suitable heat transfer rate to heat the ballast water using waste heat. The pressure in the pipeline also must be consider where it will determine the value of flowrate that is permitted by the IMO is fulfill. The exact location is choosing onboard by consider the pressure inside the pipeline, the distance to the waste heat source and the easiest location to do retrofit with the minimum modification and with the least piping system required. All the element will become the guideline for the installation process of the waste heat BWTS (ballast water treatment system) onboard of the vessel that use gas turbine propulsion system.