Indonesia Conference Directory

Many different types of nuclear power reactors are used for electricity generation. The current nuclear power plant is classified as Generation III or lower. Thermal hydraulics analysis plays an important role in design and safety features of a nuclear reactor. The thermal and hydrodynamic objective of the nuclear power plant design is to safely remove the heat generated in the nuclear fuel without producing fuel temperatures without closely approaching the hydrodynamic critical heat flux under steady-state or transient operating conditions. The present research represents a steady-state thermo-hydraulic analysis of in-house design 50 MWe small modular reactor (SMR). The main objective of this work is to ensure that all important thermal hydraulic parameters uphold margins far below the thermal safety margin limits. In this study, we have calculated fuel centre-line temperature, cladding surface temperature, bulk coolant temperature, power density, average heat flux, the departure from nucleate boiling (DNB) heat flux and DNB ratio. An analytical method has been used to calculate the above mentioned parameters by using a computer program based on C programming language. This method has been validated against the available literature values. It is found from our preliminary analysis that these parameters are within the thermal safety margin limits. Further works are in progress to perform thermal hydraulic analysis by using code such as PARET, RELAP, TRAC etc. to finalize the thermal safety margin limits for our conceptual design of SMR.