Virtual Matching and Optimization of Turbocharger Parameters for Marine Diesel Engines to Achieve Fuel and Emission Efficiency Targets

Abstract

The performance and environmental impact of marine diesel engines are strongly influenced by turbocharger configuration and condition. As shipping industries face increasing pressure to meet fuel efficiency and IMO Tier III emission standards, simulation-based optimization offers a cost-effective solution for improving performance while reducing environmental impact. This study investigates how variations and degradations in turbocharger parameters affect the performance of a MAN B&W 6S60MC-C two-stroke marine diesel engine using the TRANSAS Full Mission Engine Room Simulator. The main objective is to evaluate how fault-aware turbocharger matching strategies can sustain engine efficiency and emission compliance under degraded conditions. Results show that optimized configurations enhance combustion stability, reduce fuel consumption, and improve emission performance, while degradation levels of 15–20% significantly impair power and increase pollutant output. The findings demonstrate the importance of adaptive and fault-aware turbocharger optimization strategies for ensuring operational reliability, regulatory compliance, and sustainable marine propulsion.