Numerical Assesment Of Characteristic Passive Cooling System With Air At Containment AP1000 Model

NUMERICAL ASSESSMENT OF CHARACTERISTIC PASSIVE COOLING SYSTEM WITH AIR AT CONTAINMENT AP1000 MODEL

Widi Laksmono¹⁾, Ari Darmawan Pasek¹⁾, Efrizon Umar^2)
1)Fakultas Teknik Mesin dan Dirgantara – ITB
²⁾Pusat Teknologi Nuklir Bahan dan Radiometri – BATAN
ABSTRACT
NUMERICAL ASSESSMENT OF CHARACTERISTIC PASSIVE COOLING SYSTEM WITH AIR AT CONTAINMENT AP1000 MODEL. Nuclear power plant technology has been growing rapidly. Nowadays, research and development had been taken place especially passive utilization of safety feature. The purpose of this research is to assess a natural convective heat transfer characteristic at containment AP1000 model by using natural air circulation. The analysis method used in this research is finite volume by using computational fluid dynamic (CFD) code. Based on numerical analysis result, the containment of AP1000 model becomes cooler with existence of baffle. This result indicated that the baffle as air director work properly and a better cooling system is achieved. The new concentric cylinder heat transfer correlation derives from containment model with baffle is proposed in the form of : Nu = f (Ra)*

Keywords: natural convection, passive containment cooling system, AP1000
Proceeding Seminar Nasional Ke-15 "TEKNOLOGI DAN KESELAMATAN PLTN SERTA FASILITAS NUKLIR", Surakarta, 17 Oktober 2009