Performance Analysis on The Design of The Energy Conversion System of The Indonesia Experimental Power Reactor (Ign. Djoko Irianto1,a), Sukmanto Dibyo1, Sriyono1, Djati H. Salimy1, Rahayu Kusumastuti1, Endiah Pujiastuti1, Marliyadi Pancoko2

Abstract. A non-commercial power reactor with the thermal power of 10 MW is being designed based on a hightemperature
gas-cooled (HTGR) reactor called the Experimental Power Reactor (RDE). RDE is designed to generate
electricity and to supply thermal energy for experimental purposes. The energy conversion system in the RDE design
is designed in cogeneration configuration with a Rankine cycle. The outlet temperature at the reactor design is 700 oC
and the outlet temperature in the design of the steam generator outlet is 530 oC. Performance parameters for the design
of RDE energy conversion systems are expressed with thermal efficiency parameters and energy utilization factors.
To support and complement the RDE design especially the design of energy conversion systems, research is needed
relating to the performance parameters of energy conversion systems. This research aims to calculate and analyze the
optimal parameters of thermal efficiency and energy utilization factors in the design of the RDE energy conversion
system. The calculation and analysis of cooling thermodynamic parameters and coolant system performance
parameters of RDE are performed by simulation using ChemCad. The results showed that at 90 bar vapor pressure and
cooling mass flow rate of 3.3 kg/s, the highest thermal efficiency is 29.21%.
Keywords: Performance, energy conversion system, RDE, thermal efficiency, energy utilization factor.