Abstract:The role of the fuel injection systems in direct injected gasoline engines is to achieve a suitable fuel vapor distribution, homogeneous or with some degree of stratification, while avoiding unwanted effects such as wall wetting. Planar laser-induced exciplex fluorescence (PLIEF) is a method suitable for the characterization of such sprays since it enables separate imaging of both vapor and liquid phase of fuel simultaneously. In this study a hollow-cone spray generated with an outwards-opening piezo-actuated … Show more
“…Temperature measurements during the process were carried out using an optical splitting device with two different band-pass filters installed in front of a RedLake high-speed camera. This allows direct evaluation of temperature fields on the specimen's surface by extracting the emission intensity ratio from two different wavelengths [18]. Temperatures at the edge of the hardening process were monitored to determine the local thermal cycles (red marked pixel in Fig.…”
“…Temperature measurements during the process were carried out using an optical splitting device with two different band-pass filters installed in front of a RedLake high-speed camera. This allows direct evaluation of temperature fields on the specimen's surface by extracting the emission intensity ratio from two different wavelengths [18]. Temperatures at the edge of the hardening process were monitored to determine the local thermal cycles (red marked pixel in Fig.…”
“…1 that records temperature fields at a frame rate of 300 frames per second. The temperature imaging equipment consists of a high-speed camera by RedLake and DualScope by Dantec Dynamics, which has been previously applied for imaging gasoline-like sprays [48]. The DualScope-optic is an optical splitting device that allows simultaneous acquisition of two spatially identical but spectrally separated images with a single camera.…”
Section: Temperature Observation During the Processmentioning
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