CFD-based optimization of gas detector placement
1 Introduction Risk is defined as the frequency or probability that a given event occurs multiplied by the severity of such an event.Significant effort is performed at process facilities to help restrict or minimize the risk to tolerable levels.This can be accomplished by: (1) controlling the threats of a given hazard by putting into place protective measures that form barriers between the possible threats and hazard, thereby reducing the likelihood of the hazard occurring or (2) mitigation measures that form barriers between the top level event or hazard and the consequences of such an event, thereby limiting the chain of consequences or severity of the originating event.For loss of containment or accidental hazardous releases of a flammable substance,thegas detection system is the key barrier for triggering mitigation measures to limit the consequences and severity of a given event, which can include:· activation of Emergency Shutdown (ESD) or Blowdown (BD)-isolating the inventory and limiting the size of the accidental release · activation of Ignition Source Control (ISC)-minimize the likelihood of ignition of flammable gases or liquids following a loss of containment · shut down of Ventilation in HVAC inlets · activation of fire water pump and deluge · activation of PA/alarms to alert personnel
Kees van Wingerden φrjan Knudsen Are Bratteteig Prankul Middha
GexCon AS, P.O.Box 6015, NO-5892, Bergen, Norway
国内会议
北京
英文
268-273
2014-10-01（万方平台首次上网日期，不代表论文的发表时间）