Effects of benzene, cyclo-hexane and n-hexane addition to methane on soot yields in high-pressure laminar diffusion flames

Soot and PAH formation in high pressure spray pyrolysis of gasoline and diesel fuels

“…Furthermore, since the YSI metric was developed under atmospheric conditions, the pressure effects remain uncertain. Numerical simulations have suggested that the YSI is robust at elevated pressures relevant to practical combustion devices [37], but these findings contradict the experimentally observed variation in pressure sensitivity of soot formation across fuels discussed previously [13][14][15][16][17].…”

“…The effect of pressure is unknown and may play a role here as well. As discussed earlier, YSI was developed under atmospheric conditions, and experimental evidence suggests that YSI may not be relevant at elevated pressures up to 10 bar for some select single-component hydrocarbon fuels [16,17]. While data on the pressure effect on YSI is currently limited, it is reasonable to suspect that the elevated pressures used in this study (60 bar) limit the reliability of YSI as a predictive metric.…”

“…On the other hand, shock tube pyrolysis studies generally show less pressure dependence of soot formation of selected fuels [10][11][12]. In general, the pressure dependence on soot formation can vary widely with different fuels [13][14][15][16][17].…”