Identify, evaluate, and control process hazards with expert risk assessments, ensuring safe, reliable, and compliant industrial operations.
In high-hazard process facilities, ensuring the safety of personnel, assets, and the surrounding environment requires more than subjective safeguards. Quantitative Risk Assessment (QRA) is a highly structured, data-driven methodology used to evaluate the consequences of potential engineering and structural failure scenarios.
A comprehensive QRA study from Aura Safety assesses the precise extent of potential damages against strict safety criteria, providing actionable engineering measures to mitigate severe industrial hazards.
Industrial systems span a wide range of operational risks. Generally, potential failure scenarios across process facilities fall into two distinct categories:
Common operational disruptions, such as instrument tapping line failures.
Severe incidents, such as the catastrophic rupture of a pressure vessel or a major breach in a main outlet header line.
Our QRA process maps these scenarios to evaluate effect zones for 13 critical hazard outcomes, including the following:
By mapping these effect zones directly to your plant’s specific plot plan, we deliver exact metrics to guide your risk mitigation and structural strategies. To better understand how these studies scale across large operations, you can read our comprehensive guide on QRA-in-high-hazard-industries.
Our process safety engineering team follows a systematic, industry-standard approach to quantify risk:
We evaluate critical operational factors, including the physical and chemical properties of fluids, equipment layout, maintenance conditions, and external parameters (such as third-party interference, extreme environmental shifts, or aircraft/helicopter crashes). This phase utilizes established process hazard analysis (PHA) index techniques, engineering codes, checklists, a structured hazop study, and FMEA (Failure Modes and Effects Analysis). For plants undergoing wider regulatory scrutiny, this step often aligns with formal external safety audits.
Using historical empirical database criteria (such as the Dutch CPR 18E “Purple Book” guidelines compiled by the Committee for the Prevention of Disasters), we calculate the probability of specific initiating events. Mathematical software modelling is deployed to evaluate variables like:
The calculated individual and societal risks are judged against strict local tolerable risk criteria, which is a core step for installations bound by comah regulations. This quantifies the potential impact of lethal thermal radiation, blast waves, or toxic exposure on personnel, allowing us to accurately gauge domino effect vulnerabilities. When integrating these findings into new builds, they are cross-referenced during a formalized project hse review.
Where risks exceed tolerable thresholds, we identify opportunities for inherently safer designs. We provide clear, prioritised action plans based on a strict safety hierarchy:
To optimize your facility’s safety barriers, a QRA balances conservative safety margins with realistic modeling variables. Our comprehensive fire & explosion risk assessment meticulously calculates:
Simulating leak sizes ranging from minor pipework weeping to complete catastrophic pipeline ruptures.
Analyzing single-phase gas, liquid, or complex two-phase flashing releases across storage tanks, road tankers, and railway wagons.
Factoring in local topography, surrounding-terrain rough-surface parameters, wind velocity profiles, and atmospheric stability classes to predict the exact path of flammable or toxic clouds down to lower flammable limits (LFL).
Furthermore, these calculations help inform complex safety layer designs, such as an escape evacuation rescue analysis or an emergency systems survivability analysis, ensuring your infrastructure withstands worst-case scenarios. These assessments also lay the groundwork for complete psm audit & implementation workflows.
A properly executed quantitative risk assessment is a powerful tool to protect your workforce, satisfy regulatory compliance, and prevent catastrophic asset loss. By combining drawing reviews, site visits, and state-of-the-art computational modeling, Aura Safety transforms complex process data into a clear blueprint for industrial resilience.
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Identify, evaluate, and control process hazards with expert risk assessments ensuring safe, reliable, and compliant industrial operations.
Ensures robust Process Safety Management systems to prevent major industrial incidents.
Independent evaluation of safety systems to ensure compliance and operational integrity.
Assesses Health, Safety & Environment controls at every project stage for safer execution.
Visual risk assessment method that maps hazards, causes, consequences, and controls.
Supports compliance with Control of Major Accident Hazards regulations for high-risk sites.
Identifies combustible dust hazards and mitigates explosion risks in work environments.
Analyzes escape routes and rescue strategies to ensure safe evacuation during emergencies.
Evaluates whether critical systems can withstand emergency conditions and remain functional.
Maps fire and gas detector coverage to optimize safety system placement and performance.
Comprehensive site audit to identify safety gaps and enhance operational performance.
Assesses potential fire and explosion scenarios to strengthen prevention and response plans.
Systematically evaluates failures and their impacts to improve reliability and safety.
Identifies workplace hazards and evaluates risks to establish effective control measures.
