A comprehensive Fire and Gas Mapping Study was carried out for the EPC project involving gas supply to MARSA LNGB, SIPC, Sohar under the OQ Gas Network. The purpose of this study is to ensure optimal placement, quantity, and performance of fire and gas detectors across the facility.
This Fire and Gas Mapping Study ensures optimal gas detector placement and full coverage for industrial facilities. The assessment was performed in line with project-specific Fire and Gas Detection Philosophy, international standards, and industry best practices.
The study evaluates detector coverage, positioning, and response effectiveness to enable early detection of gas leaks and timely mitigation of fire and explosion risks.
The objective of this study is to evaluate and optimize the Fire and Gas (F&G) detection system to ensure reliability, compliance, and effective performance.
Key objectives include:
The study also focuses on optimizing:
The Fire and Gas Mapping Study follows a risk-based and geographic coverage approach, ensuring that detector placement is based on actual hazard scenarios rather than standard thumb rules.
All critical process areas are identified using engineering documents such as plot plans, P&IDs, and process flow diagrams. These areas are defined as Fire and Gas detection zones.
A detailed hazard assessment is carried out by evaluating:
Based on this, credible scenarios like flange leaks, corrosion failures, and small-bore leaks are established.
Risk volumes (gas clouds) are defined to identify areas where gas accumulation could lead to flash fire or explosion hazards.
This analysis considers:
These defined volumes form the basis for detector coverage analysis.
The facility layout is imported into specialized F&G mapping software for simulation and analysis. Detectors are initially placed near identified leak sources.
Coverage mapping is then performed to:
For enclosed areas such as control buildings, a prescriptive approach based on NFPA standards is applied.
The detector layout is refined through an iterative process to achieve optimal performance and coverage.
This includes:
This ensures a fully optimized Fire and Gas detection system.
The Fire and Gas Mapping Study confirmed that the final detector layout meets the required safety and performance criteria. A detailed zone wise evaluation was conducted to ensure complete and reliable detection coverage.
Key findings include:
The final layout ensures early detection of gas leaks and effective emergency response.
Different detector technologies are used based on the nature of the facility and associated risks.
To ensure rapid and reliable detection, the following systems are implemented:
These detectors are strategically positioned to provide maximum coverage and quick response.
For enclosed areas, a standards-based approach is followed in accordance with NFPA guidelines and project requirements.
The system includes:
This ensures effective detection of fire and gas hazards within buildings.
The Fire and Gas Mapping Study ensures that the detection system is optimized, compliant, and reliable for the project.
The final Fire and Gas detector layout:
Ensure accurate detector placement, full coverage, and compliance with safety standards.
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