Simultaneous imaging of CH*, C*2, and temperature in flames using a DSLR camera and structured illumination
Artikel i vetenskaplig tidskrift, 2023

Measurement of chemical species and temperature mapping in flames is essential to understanding the combustion process. Multiple cameras are conventionally employed for measurement in such scenarios making the experi-mental setup not only cost-intensive but also challenging. To circumvent this, structured illumination (SI)-based methods are reported for multispecies chemiluminescence (CL) imaging using a single camera. In this paper, we demonstrate four-channel SI-based imaging for simultaneous snapshot CH* and C*2 CL imaging and two-color pyrometry for temperature profiles in a butane diffusion flame. We demonstrate our approach using individual species and multiple species imaging. Taking the advantage of the axisymmetric nature of the flame, the Abel trans-form is performed on the line-of-sight averaged images to obtain deconvoluted images. The deconvoluted maps of temperature are compared with the temperature data obtained by using a physical thermocouple probe. (c) 2023 Optica Publishing Group

Författare

Devashish Chorey

Göteborgs universitet

Indian Institute of Technology

Vishal Jagadale

Indian Institute of Technology

Megha Prakash

Göteborgs universitet

Dag Hanstorp

Göteborgs universitet

Mats Andersson

Energiomvandling och framdrivningssystem

Devendra Deshmukh

Indian Institute of Technology

Yogeshwar Nath Mishra

Göteborgs universitet

Indian Institute of Technology

California Institute of Technology (Caltech)

Applied Optics

1559-128X (ISSN) 2155-3165 (eISSN)

Vol. 62 14 3737-3746

Ämneskategorier

Energiteknik

Atom- och molekylfysik och optik

Annan fysik

DOI

10.1364/AO.484213

Mer information

Senast uppdaterat

2024-05-29