Abstract
The Reaktor Daya Eksperimen (RDE) is the High Temperature Gas Cooled Reactor (HTGR) type that will be mainly used for research activities of nuclear energy utilization. The RDE thermal power is 10 MWt using Helium gas as a primary cooling system that applies indirect cycle and superheated steam resulted from the steam generator of secondary coolant system. In separate production of electricity, some energy is discarged as waste heat, but in the cogeneration, some of heat energy is removed to be used for heat applications. Regarding to safety aspect and to optimize the utilization of heat energy, the cogeneration system using the heat exchanger could be applied. There are two options to be stidied in cogeneration system which is the heat exchanger that installed in the steam line. The option-1 is installed in outlet line from the Steam Generator, the option-2 is installed in outlet line from turbine. Purpose of this paper is to compare the cogeneration system between the two options. The comparison is carried out by the ChemCAD software. The feed water for cogeneration usingmass flow rate from 0.6 kg/s until 2.0 kg/s at temperature of 28°C were studied. The results show that the heat removal on the option-2 provides high power of turbine for generating the electricity more than the option-1. This study is expected provide possibilities of extended studies in the area of process heat applications.
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