Single-laser-shot temperature measurements at 5 kHz were performed in a gas turbine model combustor using femtosecond (fs) coherent anti-Stokes Raman scattering (CARS).
Previous single-shot temperature and CO2 concentration measurements using dual-pump CARS in this liquid-fueled combustor were limited to an equivalence ratio of 0.45, with standard deviations in temperature of about 5 6% of the mean value of 1143 K (Lucht et al., AIAA J. 41 (4) (2003) 679 686).
The standard deviations of the single-shot temperature measurements were approximately 3 4% of the mean values for equivalence ratios ranging from 0.4 to 1.1, whereas those of the single-shot CO2 concentration measurements were between 9 and 20% of the mean values.
Add any other important information such as visa's, shots, temperature and weather patterns and provide that information to all family members.
The current study demonstrates a significant improvement in the applicability of single-shot CARS temperature and CO2 concentration measurements to practical, swirl-stabilized combustors under sooting conditions.
Gaga has a preferred lighting team – old-school British sparks, who talked about football and their grandchildren – and she likes to have things checked before she arrives: the chair height, the camera shot, the ambient temperature.
In a recent paper (Kamal, et al., 2015), we reanalyzed single shot species and temperature measurements from non-swirling flames stabilized on the Cambridge/Sandia stratified burner by conditioning measurements on the local equivalence ratio, and found that the state space structure of the flames was closely approximated by that of a laminar flame at the given equivalence ratio.
Inside a NIF shot, we reach temperatures of 150 million kelvin, which is more like the inside of a star.
One-dimensional hybrid fs/ps CARS imaging provides single-laser-shot measurements of temperature, oxygen, and hydrogen in a plasma-assisted hydrogen diffusion flame.
Finally, we compute tritium codeposition rates in Be growth regions on the wall and divertor for D T plasma shots using surface temperature dependent D T/Be rates and with different assumed oxygen contents.
