Numerical studies of performance variations in the combustion of 100% biojet fuel in a jet engine

With the goal of 100% fossil-free fuel for aviation, we face major challenges in terms of performance at a reasonable production cost.

Sweden has a large source of raw materials in the form of forest biomass, so an obvious way forward is to produce a Swedish aviation biofuel from lignin.

Efforts have been made to develop fuel production from forest raw materials, but the understanding of combustion of these fuels in a jet engine is limited.

With this project we want to contribute to understanding how lignin-based biojet fuels burn in conventional jet engines in comparison to fossil Jet A.

The tools that we will use a numerical model for simulations of jet engines and since the biofuels have a different chemical structure than fossil fuels, we will include chemical models that are specific to the combustion of the fuels in question.

Several potential biofuels will be investigated in the study to map variations in combustion properties and the resulting emissions.