.ClaRa.Components.HeatExchangers.HEXvle2gas_L3_2ph_BU_simple.HeatTransfer_Shell .ClaRa.Components.HeatExchangers.HEXvle2gas_L3_2ph_BU_simple.HeatTransfer_Shellmodel HeatTransfer_Shell = ClaRa.Basics.ControlVolumes.Fundamentals.HeatTransport.Generic_HT.CharLine_L2;