"The actions described in this cluster of projects aim at the capture of CO2 from industrial fumes and ambient air, its conversion into e-fuel de-fossility fuels and their use in combustion units. TRINITHY will focus on the use of hydrogen in industrial furnaces, necessary for the energy transition. The impact of hydrogen on thermal radiation will be examined and an additive - provided by another cluster project - will be tested experimentally. In parallel, a digital model (via CFD) will be tested and developed.