“…Based on previous studies, the concentrated heat flux that is sufficient to obtain the target reduction temperatures (1500 o C) was determined. This process was conducted through simulation using the optical modeling tool "Soltrace" -developed at NREL (National Renewable Energy Laboratory, U.S.) and precedent experimental data [12][13][14][15]. The performance of the KIER 40 kW th solar furnace, as a heat source, was evaluated and a simulation model was developed.…”