Habitability system optimization of main control room in high temperature gas cooled reactor-pebble bed module nuclear power plants

On the basis of inherent safety and passive safety system, as well as no core melt down accident in high temperature gas cooled reactor-pebble-bed module(HTR-PM), analyses the characteristics of main control room habitability system in HTR-PM under the conditions of design basis accident, and proposes the optimization suggestion for the main control room habitability system in HTR-PM.