Abstract
In this work, the UV absorption cross sections of the fluorescence tracer 1-methylnaphthalene are determined in the range of 230–330 nm. The experiments are performed in a continuously scavenged gas flow cell, which allows for defined homogeneous conditions regarding temperature, pressure, and tracer/fuel composition. A LSDS (laser driven light source) is used for irradiation, which enables high spectral emission intensities in the UV range studied. For detection, a spectrograph in combination with an intensified camera is applied. Absorption cross sections at temperatures up to 850 K are determined and compared to sparsely available published data. Possible uncertainties caused by the optical setup and the flow cell, respectively, are considered.
Highlights
Polycyclic aromatic hydrocarbons (PAH) such as 1-methylnaphthalene (1-MN) play an important role in the field of combustion technology
PAH such as 1-MN [2,3,4,5,6], 2-MN [4], naphthalene [6,7,8], dimethylnaphthalene [8], anthracene [9], and perylene [10] are applied as laser induced fluorescence (LIF) tracers for mixing studies
A mean vector for I and I0 covering the spectral range considered is calculated within a region of interest (ROI)
Summary
Polycyclic aromatic hydrocarbons (PAH) such as 1-methylnaphthalene (1-MN) play an important role in the field of combustion technology. The experimental investigation of PAH can contribute to understand the soot formation process. As both PAH and soot have a high toxicological potential, the concentration in the flue gas should be kept as low as possible, in order to meet the required emission limit values. Absorption spectroscopy is a suitable measurement technique for the investigation of optical properties of PAH. Several PAH, including naphthalene, have already been studied by using UV–VIS absorption spectroscopy [1]. PAH such as 1-MN [2,3,4,5,6], 2-MN [4], naphthalene [6,7,8], dimethylnaphthalene [8], anthracene [9], and perylene [10] are applied as laser induced fluorescence (LIF) tracers for mixing studies.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
