Sea Water Desalination Using Waste Heat: A Desalination System for Small and Medium Ships Using Exhaust Heat of the Engine

Marine engine-generated waste heat presents a great potential for efficient desalination. In this research, the investigators explore a desalination system that uses the exhaust gas of a marine engine to convert seawater into fresh water. The configuration includes a heat exchanger that transfers the exhaust heat to a thermal desalination unit, where seawater is vaporized and condensed into freshwater. By tapping into waste heat, this system not only cuts down on fuel consumption but also lessens environmental impact and boosts the availability of fresh water onboard. This makes it a perfect fit for fishing vessels, cargo ships, and offshore platforms. The study emphasizes the design, efficiency, and economic viability of merging desalination with marine engines, presenting a sustainable approach to producing fresh water at sea.