Risk and Fire Safety: Fire safety integration in potentially hazardous process industry. Engineers Australia Society of Fire Safety.

Transcription

1 Risk and Fire Safety: Fire safety integration in potentially hazardous process industry Engineers Australia Society of Fire Safety

2 Agenda 2 Background Fire Safety Study in the planning process Aim and purpose Use of consequence assessment results in the fire strategy design process

3 3 Background Presentation Title February 2008 AGL Internal

4 Risk engineering for potentially hazardous and offensive development 4 Heavily regulated Governed through many Act and Regs incl. WHS (SafeWork NSW) Environment Planning & Assessment Act (NSW Department of Planning Major Development / EIS etc.)

5 5 The Fire Safety Study in the planning process Presentation Title February 2008 AGL Internal

6 Potentially Hazardous and Offensive Development 6 Based on a series of check screening tests, s.a. DG quantity / distance thresholds and other factors

7 Industries that may be Potentially Hazardous 7

8 Hazard Related Assessment Process 8 Identifies major incident scenarios. Early design. Risk based (often QRA) Formal hazard identification. Multidisciplinary teams Confirms major incident scenarios. Final design. Risk based (often QRA) Builds on HAZOPs and FHA

9 Guidelines for Process Safety 9 Hexham Camden Gas Project, Gas Wells Risk Assessment 14 January 2016 EPA Consultation

10 10 Aim and purpose Presentation Title February 2008 AGL Internal

11 Aim of the Fire Safety Study Demonstrate that fire safety strategy is appropriate and adequate for fire hazards and sufficient to meet the full extent of potential fires 2. Enables consultation with FRNSW, the NSWRFS and NSW Dept. of Planning 3. Feeds into Emergency Response Plans & Procedure and into Tactical Fire Plans

12 Key Message from Authorities 12 While generalised codes and standards are useful, the fire safety system should be designed in the light of a specific analysis of site fire hazards and incident consequences

13 Flow Diagram for Fire Safety Study 13 Based on major fire related incident scenarios (remember HAZOP, FHA) Estimate/calculate consequences of each fire scenario Determine detection, prevention, protection, fire fighting based on major incidents Hexham Assess adequacy of fire water supply Fire water containment

14 14 Use of consequence assessment results in the fire strategy design process Presentation Title February 2008 AGL Internal

15 Consequence estimation 15 Consequences from fires and explosions from hydrocarbon incidents (e.g. petroleum, gas depots etc.) can be quantified with relative accuracy Software models used, e.g. Effects, Phast, TRACE, FLACS etc. Note: the consequence contours are fictional, overlaid on a fictional site layout

16 Fire safety design 16 Propagation damage Hydrants Fatality Injury Note: the consequence contours are fictional, overlaid on a fictional site layout

17 17 Consider heat radiation on fire pump shelter Fire water Can the fire water tank cope with heat stress? Do the fire hydrants cover the site for all fire scenarios? Note: the consequence contours are fictional, overlaid on a fictional site layout

18 18 Questions / discussion Presentation Title February 2008 AGL Internal