나트륨 화재 유형별 연소현상 해석 = An analysis of the phenomena of combustion for the type of sodium fire

다국어 초록 (Multilingual Abstract)

Liquid metal reactor(LMR) of the most promising energy source in the 21st century, uses liquid sodium in stead of water as a coolant, which is one of saliant features comparing with conventional PWRs. Therefore the acquisition of liquid sodium handling technology should be preceded for the LMR development and the present study on the sodium coolant safety is an essential task in the LMR research and development. As for sodium handling and safety, the technologies for protection from sodium fire should be acquired. For that reason, the characteristics of liquid sodium fire occurring when the hot sodium make a contact with the air are understood. The objective of this study is to study on the analysis of phenomena of the combustion for the type of sodium fires. The variables of experiment were the temperature, pressure and aerosol size etc. A pool fire was experimented after filling the pan with undispersed liquid sodium inside a closed test vessel. The pressure and temperature inside test vessel were measured, and the characteristics of pool fire due to the intial concentration of oxygen was analysed. For a spray fire experiment, liquid sodium was injection into the upper part of the test vessel in a dispersed state through a spray nozzle. The pressure and temperature of gas inside the test vessel was measured, and the characteristics of the spray fire due to the temperature of injected sodium was analysed.

목차 (Table of Contents)

• 1.서론
• 2.실험장치 및 방법
• 2.1 실험장치
• 2.2 실험방법
• 3.실험결과 및 고찰
• 3.1 압력 특성
• 3.2 온도 특성
• 3.3 에어로졸 특성
• 4.결론