Measurements of Temperature and N2 Number Density in the Combustion Cylinder of a Compression Ignition Engine Utilizing Laser-Raman Diagnostics
- 1 January 1981
- report
- Published by Defense Technical Information Center (DTIC)
Abstract
Laser-Raman scattering has been used to measure temperature and nitrogen number density in the combustion cylinder of a specialized research CI engine. Measurements were made as a function of crank angle degrees (CAD) for unfueled operation at 500 and 1,000 rpm and for operation at 1,000 rpm using n- heptane as an alternate fuel to diesel fuel no. 2. A pulsed ruby laser system was the excitation source for the Raman scattering, and the CAD resolution of the measurements was .0015 to 0.36 degrees.Keywords
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