Akademik Veri Yönetim Sistemi
Journal of Boron, cilt.9, sa.1, ss.19-29, 2024 (Scopus, TRDizin)
In recent years, the search for alternative fuels to replace traditional fuels has been of increasing importance and in this context, boron-derived fuels are considered as a promising alternative for next generation energy sources. Accordingly, this study investigates the combustion characteristics of pure and mixed droplets of triethyl borate (TEB), a new generation fuel, and petrol, a conventional fuel. In the study, the evolution of the fuel droplet diameter, flame structure and flame temperature over time were observed with high-speed camera and thermal camera devices. In the experiments, petrol fuel was used as a reference and 20%TEB, 40%TEB, 60%TEB and 80%TEB fuel blends were prepared by adding TEB on a mass basis. Analysis of high-speed camera images showed that TEB-containing fuel droplets have a large non-luminous region during the combustion process, unlike gasoline fuel. In the flames obtained from pure and mixed fuels, the highest flame temperature was recorded in droplets of 80%TEB mixture. In addition, the shortest extinction time was again observed in the 80%TEB mixture. As a result of the experiments, it was found that the shortest ignition delay was observed in 60%TEB fuel droplets and the longest ignition delay was observed in pure gasoline. In general, it was reported that the addition of TEB decreased the ignition delay, increased the total extinction time and increased the temperature during combustion compared to gasoline. The curves of the time-dependent variation of the dimensionless square droplet diameter (D/D0)² of the fuel droplets examined in the study generally exhibited characteristics in accordance with the D²-law.