High-throughput generation of aircraft-like soot

High-throughput, laboratory units for generation of aircraft-like soot are needed to quantify and understand the impact such emissions on public health climate change due high costs limited access aircraft engines. Enclosed spray combustion jet fuel is used here generate concentrations, up 255 mg/m3, three orders magnitude higher than those typically obtained by widely generators that use vapor-fed flames. This attributed mostly real fuels. The large mass concentrations enable routine characterization specific surface area (SSA) pore size distribution (PSD) N2 adsorption. geometric mean mobility diameter, d¯m, agglomerates was systematically varied from 15 180 nm varying equivalence ratio (EQR) at constant feed rates, while organic total carbon (OC/TC) low (<20%) all conditions. primary particle (PP) d¯p, standard deviation, σg,p, mass-mobility exponent, Dfm, were hardly altered in EQR range. These measured Dfm σg,p indicate PPs sinter-bonded growth, agreement with literature. Most importantly, made ≤ 1.34 has mainly small pores (<2 nm) similar morphology (Dfm = 2.52 ± 0.17), SSA (160 − 239 m2/g), OC/TC (< 20%), d¯m (15 61 d¯p (14 high-thrust emissions.