FuelsPublished 8 January 2024Feasibility on equivalence ratio measurement via OH*, CH*, and C2* chemiluminescence and study of soot emissions in co-flow non-premixed DME/C1–C2 hydrocarbon flamesAbdallah Abu Saleh · Kevin J. Hughes · Graham Hargrave · Ruoyang YuanFrontiers in Fuelsdoi 10.3389/ffuel.2023.1296502