The Temperature Time Responses of the Heat Exchanger Equipped by the Protective Control

VITKOVICE POWER ENGINEERING joint-stock company designs and constructs the decentralized flexible energy cogeneration system (FES) with combined Brayton - Rankine cycle which represents a new solution of decentralized cogeneration energy sources. In FES, the heating medium is flue gas generated by combustion of a solid fuel. The heated medium is power gas, which is a gas mixture of air and water steam. Power gas is superheated in the main heat exchanger (MHE) and is led to the gas turbine that drives the asynchronous generator. In this paper, the principle of FES is briefly described. The protective control which prevents the damage of MHE by overheating is discussed. The dynamics of the MHE with respect to dynamics of protective control is presented.