Study on Energy Technology of Marine Turbocharged Diesel Engine under Low-Load Conditions

It is common to apply turbocharger technology on marine diesel engine, and the turbocharged strength is being improved. However, over 90% of schedule, the diesel engine runs at low load, bringing about problems such as inadequate torque, high fuel consumption, high heat load and etc. And directly impact operation of power and economy. The key point to improve low-load performance of marine turbocharged diesel engine is that the turbocharger can fully use exhaust energy. In this paper, variable volume exhaust pipe technology is applied as pulse turbo charging system to enhance waste gas utilization, and hence guarantee sufficient energy for turbocharger, improve low-load performance and reduce ship operating cost.