Techno-Economic Analysis of NH3 Fuel Supply and Onboard Re-Liquefaction System for an NH3-Fueled Ocean-Going Large Container Ship

This study proposed the integrated design of an NH3 fuel supply system and a re-liquefaction for ocean-going NH3-fueled ship. The target ship was 14,000 TEU large container traveling from Asia to Europe. developed feed liquid at 40 °C 80 bar cope with re-circulated sealing oil. Its power consumptions SECs ranged 56.4 157.5 kW 0.0063 0.009 kWh/kg, respectively. An onboard vapor compression refrigeration cycle also designed liquefy BOG tank. system’s exergy efficiency SEC were 34.71% 0.224 equipment most destruction heat exchangers, accounting 60% total destruction. NPV analysis found that it is recommended introduce At price USD 250/ton, reasonable cost less than 1 million. According LCC, economically feasible if carbon tax more 80/ton around 250/ton.