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.
Author(s): The Society of Fire Protection Engineers
Series: The Society of Fire Protection Engineers Series
Publisher: Springer
Year: 2022
Language: English
Pages: 128
City: Cham
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
