Supplying exothermic energy reaction from the burner to the PFR
How can you supply energy from the burner which is the exothermic reaction to the PFR which runs on endothermic reaction ??
If I understand your question correctly, you are trying to supply the energy released from a system to a system that requires energy for the reaction. If this is what you want to do, you can do so by using the energy recycle block.