ANALYSIS OF COOLING FLOW ON HOLLOW FUEL PINS: CASE STUDY OF HIGH TEMPERATURE GAS REACTOR

• Main Author: Kafi Permana, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/78238
• Institution: Institut Teknologi Bandung

Population growth has become one of the causes of increased electricity consumption. The energy conversion technology that could be the answer to that is nuclear energy. To get a nuclear reactor that meets the design standards of a powergenerating reactor, one of the analyses that can be done is thermal-hydraulic analysis. The study aims to determine the axis directional temperature distribution of the refrigerator around the High Temperatur Gas Reactor fuel bar, determine the axial directional temperature distribution on the coolant that passes through the hole on the HTGR fuels bar, define the influence of the velocity variation on the HTGR, and determine the output temperature of the HTGR. The temperature Distribution in the cooling flow can be influenced by the fluid flow velocity. The study was conducted using simulation methods using Simflow 4.0. The research was divided into two parts, fluid flow simulation in the middle of the HTGR fuel bar and fluid flows simulation around the external HTGR fuel bar with variation in velocity2 m/s, 4 m/s, 6 m/s, and 8 m/s. Based on the results, the temperature distribution values in the axial direction also vary from 668K to 1158K depending on the flow position and the flow velocity varied. The greatest distribution of the output temperature is at a variation of 2 m/s in the flow through the fuel hole with an outlet temperature of 1158 K. While the smallest temperature distribution is at the variation in the speed of 8 m/s in a flow around the fuel bar with a outflow temperature of 1028 K.