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Cycle Resolved Wall Temperature Measurements Using Laser-Induced Phosphorescence in an HCCI Engine
Technical Paper
2005-01-3870
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Cycle resolved wall temperature measurements have been performed in a one cylinder port injected optical Scania D12 truck engine run in HCCI mode. Point measurements at various locations were made using Laser-Induced Phosphorescence (LIP). Single point measurements with thermographic phosphors utilize the temperature dependancy of the phosphorescence decay time. The phosphorescence peak at 538 nm from the thermographic phosphor La2O2S:Eu was used to determine temperature. A frequency tripled 10 Hz pulsed Nd:YAG laser delivering ultra violet (UV) radiation at 355 nm was used for excitation of the phosphor. Detection in the spectral region 535 - 545 nm was performed every cycle with a photo multiplier tube connected to a 3 GHz oscilloscope. Measurements were made at four points on the cylinder head surface and two points on the outlet and inlet valves respectively. For each location measurements were made at different loads and at different crank angle degrees (CAD). The aim of the presented work was to study the feasibility of using LIP for single shot, cycle resolved wall temperature measurements.
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Authors
- Gustaf Särner - Division of Combustion Physics, Lund Institute of Technology
- Mattias Richter - Division of Combustion Physics, Lund Institute of Technology
- Marcus Aldén - Division of Combustion Physics, Lund Institute of Technology
- Andreas Vressner - Division of Combustion Engines, Lund Institute of Technology
- Bengt Johansson - Division of Combustion Engines, Lund Institute of Technology
Citation
Särner, G., Richter, M., Aldén, M., Vressner, A. et al., "Cycle Resolved Wall Temperature Measurements Using Laser-Induced Phosphorescence in an HCCI Engine," SAE Technical Paper 2005-01-3870, 2005, https://doi.org/10.4271/2005-01-3870.Also In
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