Demonstration of Two-Dimensional Temperature Characterization of Valves and Transparent Piston in a GDI Optical Engine 2004-01-0609
Thermographic phosphors thermometry was used to measure engine valves and transparent piston temperatures in two dimensions as well point wise of a running, optically accessible, gasoline direct injection engine. The engine, fueled with isooctane, was operated in continuous and skip-fire mode at 1200 and 2000 rpm. A calibration of the phosphorescence lifetime and spectral properties against temperature allowed temperature measurements between 25 and 600°C. Results from the measurements show the potential of the technique for two-dimensional mapping of engine walls, valves and piston temperatures inside the cylinder.
Citation: Omrane, A., Juhlin, G., Aldén, M., Josefsson, G. et al., "Demonstration of Two-Dimensional Temperature Characterization of Valves and Transparent Piston in a GDI Optical Engine," SAE Technical Paper 2004-01-0609, 2004, https://doi.org/10.4271/2004-01-0609. Download Citation
Alaa Omrane, Greger Juhlin, Marcus Aldén, Göran Josefsson, Johan Engström, Timothy Benham
Combustion Physics, Lund Institute of Technology, Volvo Car Corporation, Volvo Technology Corporation
SAE 2004 World Congress & Exhibition
Compression Ignition and Spark Ignition Power Cylinder Systems-SP-1820, SAE 2004 Transactions Journal of Engines-V113-3