NUMERICAL ASSESMENT FOR CHARACTERISTIC OF PASSIVE COOLING SYSTEM USING AIR BY NATURAL CONVECTION ON AP1000 MODEL CONTAINMENT

• Main Author: LAKSMONO (NIM : 24907008); Tim Pembimbing : Prof. Dr. Aryadi Suwono; Dr. Ari Darmawan Pasek; , WIDI
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17552
• Institution: Institut Teknologi Bandung

Nuclear Power Plant (NPP) Technology has been growing rapidly. Nowdays, research and development had been taken place especially passive utilization of safety feature. Early experiment about natural convection has been conducted by former researchers. Those early experiment has become basic reference for this thesis research. The purpose of this thesis are to provide virtual models, provide assesment of natural convective heat transfer characteristic at NPP containment surface and also <br /> <br /> <br /> <br /> conduct parametric study for variation on gap and containment cylinder height. <br /> <br /> <br /> <br /> Method which was used in this thesis were design models with GAMBIT by keeping similiarity’s rule so that the result can be applied at full scale. There are 12 models has made. The three of them used three dimentional configuration and the rest used exysymetry configuration. The next step were provide a numerical analysis by <br /> <br /> <br /> <br /> using FLUENT software. The Last Step was to make a conclusion from numerical analysis that has been conducted. <br /> <br /> <br /> <br /> Based on numerical calculation analysis result, there were a change in heat transfer charateristic at 671.36 W/m2 heat flux or ekuvalent with 3000 W power. <br /> <br /> <br /> <br /> Another result show that containment becomes cooler with existence of baffle. This mean that baffle as air director work properly so that better cooling system achieved. <br /> <br /> <br /> <br /> Enclosure cylinder heat transfer correlation derivated from model with baffle. Vertical cylinder correlation can be derivated from model with no outher wall and baffle.