Reports from the Nebraska Tractor Test Laboratory (NTTL) show improved fuel efficiency during the past 20 years. A 4.8% decrease in average annual specific volumetric fuel consumption for the data used in theASAE Standards was shown. Using fuel consumption and power data from the NTTL reports, new equations for fuel consumption were established that predict fuel consumption for diesel engines d...

Preliminary note A part research results concerning the proces of the diesel engine structural noise generation is presented in the article. The very proces of the internal combustion engine functioning initiates the energy creation in its parts which then excitate own modal oscillations of particular components and through their surfaces the sound is emited into the envinomment. The researches...

1 Mechanical Engineering Department Ambrose Alli University, Ekpoma, Edo State, Nigeria. 2 Mechanical Engineering Department Delta State Polytechnic, Ogwashi-Uku, Delta State, Nigeria. Corresponding Author: O. Obodeh __________________________________________________________________________________________ Abstract The techno-economic effects of diesel-kerosene blends on the operation of a dire...

The rosetta system, a toolkit for rough set analysis, is being used to classify different fault states in a large diesel engine. The data measured from this engine was collected from six different states, five fault states and the normal state, and from 15 different measurement points. The approach addresses two important questions; How much data is needed to induce an effective model? How can ...

Gas-to-liquid (GTL) fuel is regarded as a promising alternative diesel fuel. It can be used either directly as a diesel fuel or in blends with petroleum-derived diesel or biodiesel. This study investigated the fuel properties, engine performance and exhaust emissions of B5 diesel, GTL fuel and their blends. The main fuel properties of the blended fuels showed a linear variation with the fractio...

In order to use gaseous fuels in Diesel Engines, Dual-Fuel Diesel Engine (D. F. D. E) the pilot injection approach is chosen. To predict its performance, an engine cycle model, based on limited-pressure Diesel cycle, is constructed. The model predicts D. F. D. E performance with LPG, and CNG gases. Comparing with pure Diesel engine, by increasing gas proportion in dual-fuel, indicated power and...

The production of synthetic fuels from alternative sources has increased in recent years as a cleaner, more sustainable source of transport fuel is now required. The European Commission has outlined renewable energy targets pertaining to transport fuel which must be met by 2020. In response to these targets Ireland has committed, through the Biofuels Obligation Scheme of 2008, to producing 3% o...