The Influence of Diesel Oil Improvers on Indices of Atomisation and Combustion in High-Efficiency Engines

Abstract

The process of fuel combustion in a diesel engine is determined by factors existing during liquid fuel injection and atomisation. The physicochemical properties of the fuel to a large extent decide upon the quality of this phase of cylinder fuelling. So it is important to ensure appropriate properties of a fuel affecting its atomisation and, as a result, combustion. The paper deals with the topic of diesel oil improvers and the analysis of their influence on atomisation and combustion indices. In the studies base diesel oil and a diesel fuel improved by a package of additives, were used. The process of conventional and improved fuel injection was analysed by using optical examinations. The amount of released heat was evaluated during the studies carried out on combustion. Significant aspects of the applied improvers in relation to fuel injection and its combustion have been indicated.

Optimizing the Shape of a Compression-Ignition Engine Combustion Chamber by Using Simulation Tests

“…The use of dual-fuel (liquid and gas fuels) combustion systems [11] does not allow to fully optimize this structure, as it would necessitate meeting requirements related to different fuel properties that are at times in opposition to each other. The use of fuel additives [10] also allows to control the combustion process, but to a lesser extent than the optimal shape of the combustion chamber.…”

Determining the NOx emission from an auxiliary marine engine based on its operating conditions

“…Engineers carry out various activities to minimize the environmental impact of diesel engines or try to implement alternative solutions [1][2][3][4][5][6]. As a result of burning hydrocarbon fuels, combustion engines emit harmful substances into the atmosphere in the form of: carbon monoxide and dioxide (CO and CO2), hydrocarbons (THC), nitrogen oxides (NOx), particulates (measured as particle mass PM and number PN), and sulfur oxides (SOx).…”

Assessment of possible use of the ionization signal for the combustion process diagnostics in a spark-ignition combustion engine powered by natural gas

“…The costs of indicated systems limit their application to only scientific test engines and higher class vehicles. Optical systems are an alternative, available method [18,19,21] along with systems based on ionization current measurement in the cylinder [13,15]. The analysis of a light wave requires using complicated apparatus, similarly as for the variable pressure indication [24].…”