19-Color H2O Absorption Spectrometer Applied for Real-Time In-Cylinder Gas Thermometry in an HCCI Engine 2007-01-0188
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An all fiber-optic sensor has been developed to measure H2O mole fraction and gas temperature in an HCCI engine. This absorption-spectroscopy-based sensor utilizes a broad wavelength (1320 to 1380 nm) source (supercontinua generated by a microchip laser) and a series of fiber Bragg gratings (19 gratings centered on unique water absorption peaks) to track the formation and temperature of combustion water vapor. The spectral coverage of the system promises improved measurement accuracy over two-line diode-laser based systems. Meanwhile, the simplicity of the fiber Bragg grating chromatic dispersion approach significantly reduces the data reduction time and cost relative to previous supercontinuum-based sensors. The data provided by the system is expected to enhance studies of the chemical kinetics which govern HCCI ignition as well as HCCI modeling efforts.
Citation: Lan, C., Caswell, A., Kranendonk, L., Sanders, S. et al., "19-Color H2O Absorption Spectrometer Applied for Real-Time In-Cylinder Gas Thermometry in an HCCI Engine," SAE Technical Paper 2007-01-0188, 2007, https://doi.org/10.4271/2007-01-0188. Download Citation
Author(s):
Chun Lan, Andrew W. Caswell, Laura A. Kranendonk, Scott T. Sanders, Yasuhira Urata, Yasuhira Okura
Affiliated:
Engine Research Center, University of Wisconsin-Madison, Tochigi R&D Center, Honda R&D Co., Ltd.
Pages: 11
Event:
SAE World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Homogeneous Charge Compression Ignition Engines, 2007-SP-2100
Related Topics:
HCCI engines
Combustion and combustion processes
Fibers
Gases
Sensors and actuators
Chemicals
Water
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