Empirical fuel consumption assessment for two-strokes dual fuel engines on LNG Carriers

Abstract

This work aims to describe an empirical method for calculating the fuel and gas consumption on two-strokes dual fuel engines with gas (LNG) injection. The empirical analysis is done by collecting data from 12 engine shop tests report of two-strokes dual fuel engines with gas injection for LNG carriers, from the engine makers MAN B&W and WINGD, highlighting the differences between both makers in terms of fuel consumption.

This engine design appears to satisfy the need of having more flexibility in regards of using different fuel types, including LNG as one alternative for mitigate the atmospheric emissions, besides the benefits of using two stroke cycles instead of four strokes, improving the efficiency of power production