Predicting Room of Origin Fire Hazards

Description

This engineering guide provides a methodology to define and quantify the fire development andensuing conditions within the room of fire origin from the fire’s incipient stage through its fulldevelopment. The approach presented in this guide was developed using the framework set forthin the SFPE Engineering Guide to Performance-Based Fire Protection. 2nd ed., Quincy, Mass.:National Fire Protection Association, 2007.)It consists of three distinct parts: 1.Approach selection2.Input definition and data collection3.Results computation Specifically, this guide was developed for use as a means to implement the requirements presented in Chapter 10 of the SFPE Engineering Guide to Performance-Based Fire Protection. However, material within this guide has broader applicability and is therefore not limited to performance-based design applications. The SFPE Task Group on Room of Origin Fire Hazards Acknowledgment Contents Acronyms List of Figures List of Tables Introduction Document Hierarchy Scope Limitations Applications Definitions Room of Origin Fire Hazards Analysis Methodology Idealized Room of Origin Fire Development Overview of Fire Hazards Analyses Room of Origin Fire Hazards Analysis Process Fire Hazards Analysis Tools Engineering Judgment and Conservative Subjective Evaluations Hand Calculations and Spreadsheet Fire Models One-Zone and Network Fire Models Two-Zone Fire Models Field Models Specialty Models Thermal Models Flame Spread Models Detector Actuation Models Room of Origin Fire Hazards Analysis Task 1: Select Approach Indirect Information for Task 1 Design Fire Scenario Performance Criteria Room Geometry Direct Information for Task 1 Capability of the Analysis Approach Types of Determinations Required Additional Considerations for Task 1 Approach Selection Direct Determination from Task 1 Indirect Determinations from Task 1 Room of Origin Fire Hazards Analysis Task 2: Obtain Input Data Define the Room Geometry Room Geometry Parameter Characteristics Room Geometry Data Sources Define the Source Fire Characteristics Source Fire Parameter Classes Data Sources for the Fire Characteristics Room Effects Effect on the Selected Approach Assemble the Input Data Room of Origin Fire Hazards Analysis Task 3: Results Computation Model Setup and Execution Result Checks Sensitivity Analysis Worked Examples Control Room Fire Preliminary Considerations Task 1 Task 2 Task 3 Smoke Control in an Atrium Preliminary Considerations Task 1 Task 2 Task 3 Fire in a Compartment That Has Combustible Linings Preliminary Considerations Task 1 Task 2 Task 3 Appendices Appendix A Formal Approaches to Hazards Analysis Introduction Hazards Analysis Approaches Appendix B Room of Origin Fire Hazards Analysis Detailed Input Requirements Physical Description of the Room Room Geometry Room Boundaries Ambient and Environmental Conditions Natural Ventilation Parameters Forced Ventilation Parameters Target Parameters Fire Detection and Alarm System Parameters Suppression System Parameters Manual Suppression Parameters Physical Description of the Source Fire Source Fire Configuration Source Fire Definition Properties Source Fire Development Parameters Appendix C Room of Origin Fire Hazards Analysis Endpoints and Output Criteria Set Conditions—Endpoints Common Analysis Output References Bibliography Performance-Based Fire Protection Engineering Fire Hazards Analysis Energy Release Rates Fuel Characteristics Material Properties Sensitivity Analysis Model Validation and Verification Fire Hazards Analysis Tools Fire Spread Fire Detector and Automatic Fire Sprinkler Actuation Boundary Damage and Structural Integrity Risk Considerations