소방방재대학원(석사과정)

ASET Analysis of Hospitals Based on Korean and Chinese Smoke Control System Standards

Abstract

We are designed to compare the impact of smoke control systems on Available Safe Egress Time (ASET) in hospital buildings under Korean and Chinese standards. Using PyroSim, three scenarios are simulated: no smoke control, minimum standard exhaust and air supply rates, and a fixed exhaust rate of 18,000 m³/h. Evaluation focuses on temperature, visibility, CO, and O₂. Korean standards mandate a minimum exhaust rate of 5,000 m³/h per zone, while Chinese standards require 15,000 m³/h, producing a 77-second ASET difference. Air supply rules also differ: Korea requires supply to exceed exhaust, while China requires only 50% more. Under a uniform exhaust rate of 18,000 m³/h, ASET differs by over 495 seconds. Findings suggest Korea should raise its minimum exhaust rate and clarify the supply-to-exhaust ratio.