The environmental impact of automotive transport systems and the need for reducing petroleum dependence lead to the development of alternative combustion strategies and the use of renewable fuels. In this work, HCCI combustion mode, by using ethanol as fuel, is analysed in order to clarify the...

Hydrogen-natural gas blends (HCNG) have the advantage of lower emission levels, because of their lean combustion characteristics, compared to a direct injection diesel engine equipped with a high-cost fuel supply system and an aftertreatment system for heavy-duty vehicles. The HCNG engine has...

Through means of 3-D CFD (Computational Fluid Dynamics) method, a novel axial compressor with different impeller shapes compressing water vapor as refrigerant was investigated. The numerical simulation focuses on the fluid flow from compressor impeller inlet to outlet. The overall performance...