Investigation of flame emission and absorption spectroscopy using HITRAN/HITEMP database and simulations for concentration and temperature determination in combustion environments

........................................................................................................................... 3Content ............................................................................................................................. 4 Chapter 1 – Introduction ................................................................................................ 61.1 Objectives .................................................................................................................. 61.2 Scope .......................................................................................................................... 71.3 Outline ....................................................................................................................... 7 Chapter 2 – Background and Motivation ..................................................................... 82.1 The study of light and matter interaction .............................................................. 82.1.1 Atomic and molecular spectra ................................................................................ 82.1.2 Broadening of spectral lines ................................................................................. 102.2 The equation of radiative transfer ........................................................................ 112.2.1 Absorption ............................................................................................................ 122.2.2 Emission ............................................................................................................... 132.3 Line-by-line gas radiation simulation ................................................................... 142.3.1 HITRAN/HITEMP database ................................................................................ 142.3.2 Applications of HITRAN database ...................................................................... 152.4 Briefly about combustion ....................................................................................... 182.5 Internal combustion engine ................................................................................... 19 Chapter 3 Experimental equipment and considerations ........................................ 213.1 Measurements with FTIR Spectrometer on a flame ........................................... 213.1.1 Experimental setup ............................................................................................... 213.1.2 Burner .................................................................................................................. 213.1.3 Slit ........................................................................................................................ 233.1.4 Fourier Transform Infrared Spectrometer .......................................................... 233.2 Engine experiment proposal .................................................................................. 253.2.1 Experimental setup ............................................................................................... 253.2.2 Possible light sources ........................................................................................... 263.2.3 Filters ................................................................................................................... 273.2.4 Engine .................................................................................................................. 283.2.5 Detectors .............................................................................................................. 29 Chapter 4 Measurement and Simulations ................................................................ 314.