24 May 1993 Infrared multiphoton ignition and combustion enhancement of natural gas
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Proceedings Volume 1862, Laser Applications in Combustion and Combustion Diagnostics; (1993) https://doi.org/10.1117/12.145709
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
The unique chemistry of methane combustion, including strong C-H bond energy, leads to difficulties in use of natural gas as an engine fuel. Problems include low combustion efficiency, knocking, unreliable ignition (misfiring), and NOx emission. It is well established that improvement of the above-mentioned combustion phenomena requires the presence of high concentration of chain-initiating and chain-branching reactive radicals. This project explores a novel approach called Infrared Multiphoton Dissociation (IRMPD), for producing reactive radicals. IRMPD involves the absorption of multiple infrared photons by target molecules within the duration of an infrared laser pulse, leading to formation of high energy species. This study is an exploration of the applicability of IRMPD to natural gas excitation, and subsequent enhancement of combustion. IRMPD is demonstrated to be a feasible concept for natural gas engine ignition and for combustion enhancement through reduction in ignition delay time. The next stage of development would be to identify and implement a prototype laser and optical hardware for single-cylinder engine tests.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Moshe Lavid, Moshe Lavid, Arthur T. Poulos, Arthur T. Poulos, Suresh K. Gulati, Suresh K. Gulati, } "Infrared multiphoton ignition and combustion enhancement of natural gas", Proc. SPIE 1862, Laser Applications in Combustion and Combustion Diagnostics, (24 May 1993); doi: 10.1117/12.145709; https://doi.org/10.1117/12.145709

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