Efficient and Low-Smoke Combustion of Various Low-Grade Fuels in High-Speed Small Diesel Engines

Abstract

In low-speed large diesel engines, low-grade or heavy petroleum fuels have long been used as an economy measure. Efficient use of various low-grade fuels has recently become a topic of great concern also for high-speed small diesel engines. This paper describes and analyzes improvements of the thermal efficiency and smoke emissions by fuel heating and blending with low-viscosity fuels in high-speed diesel engines with a range of low-grade or high-viscosity fuels.