Simultaneous Mapping of the Distribution of Different Fuel Volatility Classes Using Tracer-LIF Tomography in an IC Engine

High-speed chemical species tomography in a multi-cylinder automotive engine

“…Using broad-band sources, Barrag and Lawton [13], Shimizu and Sakai [14] and Krämer et al [15] achieved high-speed optical tomography by simultaneous application of multiple beams to the subject. Wavelength selection (to achieve specificity) was performed after transmission through the subject, by the use of either interchangeable filters or dispersive detection.…”

Optical diagnostics for direct injection gasoline engine research and development

“…However, LIF measurements of gasoline have been demonstrated as a useful development approach (Fansler et al, 1995). Tracer combinations have been used for measurements of fuel component distributions and their dependence on the evaporation rate of the components (krämer et al, 1998;Swindal et al, 1995). It was experimentally observed that early injection strategies where fuel is injected into lowerpressure environments can lead to component-specific fuel stratification (Santavicca et al, 2001), while for late injection into the high-pressure conditions of near-TDc timings, this is not the case, in agreement with internal transport processes in the fuel droplets (Zhang and Sick, 2007).…”

Large eddy simulations of complex multicomponent diesel fuels in high temperature and pressure turbulent flows

“…Vapor distribution measurements for diesel sprays are generally difficult due to issues of de-mixing of the fuel tracer from the fuel due to difference in properties at high temperature and pressure conditions [25]. Data for SI engine conditions is more readily available [25] - [29]. Zigan et al [25] employed a combination of 2D-Mie scattering, LIF and phase-Doppler anemometry (PDA) to study the spray formation and evaporation dependence on fuel properties for a Direct Injection Spark Ignition (DISI) engine.…”