.ClaRa_Obsolete.Components.Furnace.BaseClasses.HopperBase.Burning_time .ClaRa_Obsolete.Components.Furnace.BaseClasses.HopperBase.Burning_timeModel for the buring time
model Burning_time = ClaRa.Components.Furnace.GeneralTransportPhenomena.BurningTime.ConstantBurningTime;