NDLI: Tomographic reconstruction of the OH*-chemiluminescence distribution in premixed and diffusion flames

Content Provider	Springer Nature Link
Author	Anikin, N. Suntz, R. Bockhorn, H.
Copyright Year	2010
Abstract	A fast tomographic reconstruction device has been developed to detect the two-dimensional distribution of the chemiluminescence of OH* in the reaction zones of flames. In the set-up, special emphasis was placed on the applicability of the technique to turbulent flames. A spatial resolution of the system, <1–2 mm, and an exposure time of 100–200 μs are required to resolve the chemiluminescence signal of OH* originating from the folded flame front of a turbulent flame.The tomographic system is realised by a set of 10 Kepler-telescopes surrounding the investigated object from different angles. The chemiluminescence signal collected by each telescope is imaged onto the face surface of an optical cable. The latter consists of 90 single fibres, which are arranged equidistantly from each other, in a single row. The opposite ends of these 10 cables/900 fibres are merged together in a light collector, which images the output signal of all the fibres onto the entrance window of an intensified CCD-camera. The telescopes are used to adapt the size of the investigated object to the size of the image intensifier of the CCD-camera. Additionally, an iris aperture positioned in the focal plane of the objective lens of the telescope guarantees, that only parallel rays can pass the system. The signal information of these 90 parallel rays obtained under 10 different angles is used for the tomographic reconstruction. The aperture of the iris inside the telescope limits the optical resolution of the telescopes, as well as the light intensity transmitted through the telescope.A series of single shot experiments were carried out in various laminar diffusion and specially-shaped premixed flat flames to investigate the limits of the apparatus and the tomographic algorithm with respect to the exposure times as well as geometric resolution. In these experiments reasonable temporal and spatial resolution of the instantaneous OH* distributions are obtained at exposure times down to 100 μs so that this technique can be successfully applied to turbulent flames.
Starting Page	675
Ending Page	694
Page Count	20
File Format	PDF
ISSN	09462171
Journal	Applied Physics B
Volume Number	100
Issue Number	3
e-ISSN	14320649
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-05-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physics Engineering Optics, Optoelectronics, Plasmonics and Optical Devices Quantum Optics Laser Technology, Photonics Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Tomographic reconstruction of 2D-OH∗-chemiluminescence distributions in turbulent diffusion flames

On the quantification of OH, CH, and C2* chemiluminescence in flames

Experimental study of signal trapping of OH laser induced fluorescence and chemiluminescence in flames

Simultaneous one-dimensional fluorescence lifetime measurements of OH and CO in premixed flames

Selected papers about chemiluminescence of flames

Measurement and simulation of rotationally-resolved chemiluminescence spectra in flames

Simultaneous measurement of localized heat release with OH/CH2O-LIF imaging and spatially integrated OH∗ chemiluminescence in turbulent swirl flames

Simultaneous laser-induced fluorescence and Rayleigh scattering measurements of structure in partially premixed flames

Multi-kHz temperature imaging in turbulent non-premixed flames using planar Rayleigh scattering

Tomographic reconstruction of the OH*-chemiluminescence distribution in premixed and diffusion flames

Similar Documents

Tomographic reconstruction of 2D-OH∗-chemiluminescence distributions in turbulent diffusion flames

On the quantification of OH*, CH*, and C2* chemiluminescence in flames

Experimental study of signal trapping of OH laser induced fluorescence and chemiluminescence in flames

Simultaneous one-dimensional fluorescence lifetime measurements of OH and CO in premixed flames

Selected papers about chemiluminescence of flames

Measurement and simulation of rotationally-resolved chemiluminescence spectra in flames

Simultaneous measurement of localized heat release with OH/CH2O-LIF imaging and spatially integrated OH∗ chemiluminescence in turbulent swirl flames

Simultaneous laser-induced fluorescence and Rayleigh scattering measurements of structure in partially premixed flames

Multi-kHz temperature imaging in turbulent non-premixed flames using planar Rayleigh scattering

Tomographic reconstruction of the OH*-chemiluminescence distribution in premixed and diffusion flames

On the quantification of OH, CH, and C2* chemiluminescence in flames