EFFICIENT, FLEXIBLE ARRANGEMENT TO GENERATE HIGH-QUALITY PROCESS OR DOMESTIC HEAT IN RECUPERATIVE GAS CYCLE POWER-PLANTS - APPLICATION TO HELIUM DIRECT CYCLE NUCLEAR-POWER PLANTS

The basic feature of this method lies in arranging one or two steam generators or preheaters in parallel with the low pressure side of the recuperator. The high total efficiency and the noteworthy flexibility of this system are emphasized. This arrangement is suitable for any kind of heat source, but the applications presented in this paper are related to helium direct cycle nuclear power plants, the main features of which are a single 600 MW(e) turbomachine, a turbine inlet temperature of 775 degree C, no or one intermediate cooling and a primary circuit fully integrated in a prestressed concrete reactor vessel.