Biodiesel (FAME) is increasingly used in diesel fuel formulations, however, even small amounts of biodiesel are not appropriate in certain engine applications. For example, biodiesel in aviation fuel and in back-up electric generators used in nuclear power plants can cause significant issues. Likewise, the presence of trace biodiesel in diesel fuel specified for marine pleasure crafts is proble...

Production of soot in high pressure diesel sprays is known to be dependent on combustion chamber temperature and pressure. To a lesser extent, the injector type and injection pressure also influence soot formation. In real engines, separating the individual role of these parameters is difficult as they are closely coupled. Here we present an optically based method to measure both temperature an...

The options for the regeneration of a Diesel Particulate Filter (DPF) using hydrogen rich gas are investigated. The advantages of using hydrogen rich gas for this purpose are described. The system requirements for such a system are also evaluated. The use of a plasmatron fuel converter for the onboard generation of hydrogen rich gas from diesel fuel is discussed. The advantages of homogeneous, ...

Biodiesel is one of the promising renewable, alternative and environmentally friendly biofuels that can be used in diesel engine with little or no modification in the engine. In the present study an experimental investigation has been carried out on the combustion and performance characteristics of a CI engine running with biodiesel under steady state operating conditions. The experimental work...

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...

at the present work, the effect of cold exhaust gas recirculation (egr) on combustion and pollution of a dual fuel engine has been investigated by cfd code fire. the turbulent flow within the combustion chamber is simulated using the k-ε turbulence model, which is modified for engine flows. “wave” and “eddy break up” models are employed to predict combustion and spray process. the calculations ...

Fire experiments were conducted in the Safety Research Coal Mine (SRCM) at the National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory, with coal, diesel-fuel, electricalcable, conveyor-belt, and metal-cutting fire sources to determine the response of fire sensors to productsof-combustion (POC). Metal oxide semiconductor (MOS) and smoke fire sensors demonstrated an...

In the last 30 years, diesel engines have made rapid progress to increased efficiency, environmental protection and comfort for both light- and heavy-duty applications. The technical developments include all issues from fuel to combustion process to exhaust gas aftertreatment. This paper provides a comprehensive summary of the available literature regarding technical developments and their impa...

We report for the first time on the use of water-continuous emulsions stabilized by a bio-based macromolecule in a compression-ignition diesel engine and compare their performance, combustion and emissions against the base fuels (diesel, biodiesel, and jet fuel). For this purpose, high internal phase ratio emulsions (70:30 fuel-to-water) were produced by mechanical emulsification using carboxym...