Feasibility of New Liquid Fuel Blends for Medium-Speed Engines

Abstract

Several sustainable liquid fuel alternatives are needed for different compression ignition (CI) engine applications. In the present study, five different fuel blends were investigated. Rapeseed methyl ester (RME) was used as the basic renewable fuel, and it was blended with low-sulfur light fuel oil (LFO), kerosene, marine gas oil (MGO), and naphtha. Of these fuels, MGO is a circulation economy fuel, manufactured from used lubricants. Naphtha is renewable as it is a by-product of renewable diesel production process using tall oil as feedstock. In addition to RME, naphtha was also blended with LFO. The aim of the current study was to determine the most important properties of the five fuel blends in order to gather fundamental knowledge about their suitability for medium-speed CI engines. The share of renewables within these five blends varied from 20 to 100 vol.%. The properties that were investigated and compared were the cetane number, distillation, density, viscosity, cold properties, and lubricity. According to the results, all the studied blends may be operable in medium-speed engines. Blending of new, renewable fuels with more conventional ones will help ease the technical transitional period as long as the availability of renewable fuels is limited.

Implementation of Sustainable Motorways of the Sea Services Multi-Criteria Analysis of a Croatian Port System

“…This negative impact is especially noticeable through frequent traffic congestion and a higher risk of traffic accidents, a higher level of noise, and exhaust gases, directly emitted by transport vehicles [5][6][7][8]. Additionally, there are also secondary negative impacts, such as the quantity of gases emitted in the production process of motor fuels, and an increased level of stress to all types of motorists and pedestrians [9,10] Within the framework of the European transport policy and as a cornerstone of the EU supporting the efficient integration and cohesion of its internal market, the Motorways of the Sea concept was 2 of 21 introduced as an effective means to alleviate congestion from road transport infrastructure [11]. The Motorways of the Sea concept aims to introduce new intermodal maritime-based logistics chains in Europe, which should improve European transport organization [12].…”

Performance and Emissions of a Medium-Speed Engine Driven with Sustainable Options of Liquid Fuels

“…The blend contained 26 vol.-% of naphtha. This mixing ratio was chosen on the basis of the observed favorable combustion results of a 20/80 vol.-% blend in a pre-study with a high-speed engine [42].…”

“…The company STR Tecoil delivered MGO to our university. [43,44] Table 1 lists the fuels' main characteristics. As shown, the properties of MGO and LFO were very similar.…”

Effect of Alternative Fuels on Marine Engine Performance

“…Sirviö et al [15] investigate new liquid fuel blends for a medium-speed marine engine. In the study, five fuel blends are analyzed based on their physicochemical properties.…”