ofire

OFire - Fire Safety Engineering Library

A comprehensive Python package for fire safety engineering calculations and tools, built on industry standard fire engineering documents and implemented in Rust for performance and reliability.

Overview

OFire provides Python bindings for a wide range of fire engineering calculations from authoritative sources including:

• BR 187 - External Fire Spread (Building Research Establishment)
• BS 9999 - Code of Practice for Fire Safety in the Design, Management and Use of Buildings
• CIBSE Guide E - Fire Safety Engineering
• PD 7974 - Application of Fire Safety Engineering Principles to the Design of Buildings
• SFPE Handbook - Fire Protection Engineering
• Introduction to Fire Dynamics - Fundamental fire behavior principles
• TR 17 - Fire Safety Engineering Technical Reports

All calculations are implemented in Rust and exposed through Python bindings using PyO3 for optimal performance and memory safety.

Installation

Install from PyPI using pip:

pip install ofire

Quick Start

import ofire

# Calculate thermal radiation intensity using BR 187
radiation = ofire.br_187.appendix_a.equation_a2.radiation_intensity_at_receiver(0.15, 50000.0)
print(f"Received radiation: {radiation:.1f} W/m²")

# Calculate view factor for parallel surfaces using BR 187 
x = ofire.br_187.appendix_a.equation_a3.x(5.0, 10.0)
y = ofire.br_187.appendix_a.equation_a3.y(3.0, 10.0)
view_factor = ofire.br_187.appendix_a.equation_a3.phi(x, y, True)
print(f"View factor: {view_factor:.4f}")

# Calculate heat release rate at flashover using CIBSE Guide E
flashover_hrr = ofire.cibse_guide_e.chapter_6.equation_6_7.heat_release_rate_flashover(2.0, 2.1)
print(f"Flashover HRR: {flashover_hrr:.1f} kW")

# Calculate mean flame height using CIBSE Guide E
flame_height = ofire.cibse_guide_e.chapter_6.equation_6_55.mean_flame_height(1000.0)
print(f"Mean flame height: {flame_height:.2f} m")

📚 Documentation

📖 Complete API Documentation & Examples →

Find the complete function reference, mathematical formulations, detailed examples, and all supported fire engineering standards and modules in the full documentation.

Links

• 🏠 Homepage: https://www.openfiresoftware.com/
• 📖 Documentation: https://fire-library.github.io/openfire/
• 💻 Source Code: https://github.com/fire-library/openfire

Contributing

We welcome contributions! Please see our Contributing Guidelines for information on how to get started.

License

This project is licensed under the terms specified in the PYTHON_LICENSE file.