선박 구조 개선을 통한 승무원의 피난 효율 향상을 위한 연구

Abstract

Onshore great fires can normally be extinguished by firefighters using special firefighting equipmentand its suitable method. However, offshore fires on the ships are to be extinguished by the crew without anysupports from the onshore. Also, crews working on board are exposed to high risk of emergency evacuationdue to the complicated structure arrangement of the ships and different accident types such as fire and shipcollisions. As most of damage and loss of life in fire are associated with suffocation, shortening of evacuationtime is an important factor to improve a survival rate. In this study, visibility in the accommodation area isanalyzed by using the temperature and smoke flow which are obtained by the Fire Dynamic Simulator(FDS)as a Three-Dimensional Fire Analysis program to understand the survival rate of the crew upon the fire. Thefire doors for most of ships are designed to close automatically when the fire alarm is activated. These automaticclosing of the fire doors is a very effective system to delay the spread of flame and smoke flow forthe unmanned spaces of the fire protected area. However, if the crew cannot escape within the estimated time, the crew inside the fire protected area will be damaged a lot. In this paper, the comparative analysisbetween the evacuations by using the fire door from the fire protected area and the suggested fire shieldingstructure in this study is carried out by the smoke flow rate and the temperature rise rate.