Recently, we have completed the development of an The ability to obtain quantitative planar laserincorporates a production fuel injector and is capable of induced fluorescence (PLIF) measurements in a highoperating at pressures up to 50 atm with preheated air. pressure combustor would represent a significant This facility allows laser-based imaging techniques to be advance in the application of...

In this paper, a method is presented for lowering the energy consumption and/or increasing the speed of a standard manipulator spray painting a surface. The approach is based on the observation that a small angle between the spray direction and the surface normal does not affect the quality of the paint job. Recent results in set-based kinematic control are utilized to develop a switched contro...

In the present work, the influence of a very early pilot injection on pollutant formation was investigated in a Common-Rail DI Diesel engine. The engine was operated at conventional part-load conditions at 2000 rpm, an EGR variation was done and the injected fuel mass was 15 mm^3/cycle. The Nozzle type were conical and flow optimized geometries (ks nozzle) with hole diameters of 0.141 mm, lengt...

“X-Ray Vision”: Taking a Hard Look at Fuel Sprays and Combustion Argonne researchers are collaborating on a close-up study of diesel spray patterns and soot formation using the Advanced Photon Source here at the Laboratory. The APS makes it possible for scientists to examine these phenomena closer than ever before. The knowledge gained could lead to better-performing, loweremission injectors fo...

The constantly growing number of vehicles sold and operated has resulted in greater contribution automobiles to global pollution. One way reduce emissions carbon dioxide (CO2) toxic compounds, including the particulates nitrogen oxides (NOx) contained exhaust gases, is use alternative fuels. Within this group fuels, those plant origin, mainly alcohols, are attracting more attention because thei...

concern regarding the ef%ciency, stability and safety margins of hi-propellant combustion in rocket engines has prompted the investigation of nlany specific aspects of spray evaporation, ignition and combustion previoudy not studied. Thus, early s!,ucties of combustion in liquid rocket engines were based upon the results of the classsid single-component, isolated drop combustion at atmospheric ...