ANNEX IX. SBWR. General Electric, USA

Reactor System

Reactor

Type

Power

(MW*th)

Passive Safety Systems

Simplified Boiling Water Reactor (SBWR)

General Electric, USA

BWR

2000

CORE/PRIMARY:

• Gravity-Driven Cooling System

• Automatic Depressurization System

• Isolation Condenser System

CONTAINMENT:

• Passive Containment Cooling System

• Suppression Pool

VIII — 1. Introduction

The General Electric (GE) Nuclear Energy has developed a boiling water reactor called the simplified boiling water reactor (SBWR). Major differences between the current boiling water reactors (BWR) and the SBWR are in the simplification of the coolant circulation system and the implementation of a passive emergency cooling system. There are no recirculation pumps to drive the coolant in the vessel of the SBWR. The emergency core cooling and containment cooling systems do not have active pump injected flows.