ANALISIS PEMISAHAN UAP KERING PADA SEPARATOR PEMBANGKIT UAP AP1000

Abstract

A steam generator is heat exchanger in which the top side is steam drum containing steam separator. The separator is used to separate the water content carried by the steam come from The shell side. Dry vapor produced from the separator is used to turn turbines. this paper analyzes the dry Steam separation characteristic In The separator of AP1000 steam generator based on the parameters of void fraction in two phase flow using RELAP5/SCDAP.Mod3.4. The initial data include data dimensions and operating data (temperature, pressure, flow rate (943.0 KG/S), void fraction, enthalpy of water and saturation vapor. To obtain the characteristics of separator SO analysis is focused on the separator system separately at steady state. The RELAP5/SCDAP.Mod3.4 nodalization is consists of separator model default, volume, junction, time-dependent junction and time-dependent volume as a boundary condition. Dry vapor from the separator outlet can be shown based on void fraction parameters. The Result shows that higher temperature steam from the steam generator shell side is likely the higher the dry vapor produced. The separation of dry steam coming out from the separator IS shown as a void fraction parameter of about 0.99.