.ClaRa.SubSystems.Furnace.HopperSlice_L4_AdditionalAir.ReactionZone .ClaRa.SubSystems.Furnace.HopperSlice_L4_AdditionalAir.ReactionZoneModel to regard chemical reactions
model ReactionZone = ClaRa.Components.Furnace.ChemicalReactions.CoalReactionZone;