Kenexis Effigy™ Fire and Gas Mapping Software is a performance-based design tool used to evaluate and optimize fire and gas detection systems in industrial facilities.
Traditional fire and gas system design often relies on conservative assumptions and rules of thumb, which can lead to overdesign, inconsistent results, or gaps in coverage. Effigy addresses this challenge by applying quantitative, consequence-based modelling to determine where detectors should be placed, how many are required, and how effectively they will respond to potential hazards.
Built on the principles outlined in ISA-TR84.00.07, Effigy verifies detector placement against real-world fire and gas release scenarios, ensuring that systems achieve defined coverage targets while minimizing unnecessary detector counts.
The software supports both geographic and scenario-based coverage analysis, allowing users to assess detection performance based on facility layout, obstruction geometry, detector type, and process conditions.
With advanced 3D modelling capabilities—including CAD import and patented plume fire modelling—Effigy provides a more accurate and defensible approach to fire and gas system design for complex facilities.
Westech Industrial supports customers across Canada with the implementation and application of Effigy software, helping ensure fire and gas detection systems are effective, efficient, and aligned with industry best practices.
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Description
Key Features
Performance-Based Fire & Gas Mapping
- Designed in accordance with ISA-TR84.00.07 guidelines
- Verifies detector placement based on consequence and risk scenarios
- Supports both geographic and scenario-based coverage analysis
Patented Plume Fire Modeling
- Models fire as a volumetric source rather than a single point
- Accounts for partial obstruction of fire radiation
- Provides more realistic coverage predictions in complex 3D environments
- Helps reduce overdesign and unnecessary detector counts
Advanced 3D Analysis
- Imports 3D CAD models (STL format compatible)
- Models detector cone-of-vision, obstructions, and shadowing effects
- Supports multiple obstruction geometries (pipes, vessels, structures)
- Evaluates coverage at multiple elevations and orientations
Detector-Specific Modelling
- Supports multiple detection technologies:
- Flame detection
- Flammable gas detection
- Gas cloud imaging
- Ultrasonic gas leak detection
- Includes a database of common detectors and performance characteristics
- Allows evaluation of different detector sensitivity settings
Scenario-Based Risk Visualization
- Combines thousands of potential release scenarios into a single risk profile
- Identifies both detected and undetected scenarios
- Generates colour-coded coverage maps and tabulated results
- Supports evaluation of detection effectiveness by zone
Collaboration & Project Management
- Browser-based platform (no local installation required)
- Supports secure sharing of project data across teams
- Enables consistent and repeatable analysis workflows
Applications
Applications
Effigy Fire and Gas Mapping Software is used across a wide range of industrial and energy applications, including:
- Oil & Gas Production Facilities
- Refineries and Petrochemical Plants
- LNG and Gas Processing Facilities
- Offshore Platforms and FPSOs
- Hydrogen and Energy Transition Projects
- Power Generation Facilities
- Chemical Processing Plants
These applications often involve complex layouts and hazardous materials, where accurate fire and gas detection coverage is critical to safety and compliance.
Manufacturer Info
Kenexis is an independent consulting engineering firm that provides technical safety services for process industries, and other industries that manage risks related to chemicals or stored energy.
Website: https://www.kenexis.com/
