The primary objective of ESSA is to evaluate the vulnerability of safety systems to specific MAH scenarios. This assessment requires a deep understanding of the design and functionality of these systems. The following steps are involved in the analysis:
Each safety system is thoroughly reviewed to identify any vulnerabilities in its ability to activate successfully during an MAH. This review takes into account the specific scenarios in which the system may be compromised.
The term “fail safe” refers to a system that will revert to its “safe” mode where it will perform its required safe function automatically upon failure of a “vulnerable” emergency system component. The impact of MAH on the ability for the system to move to its fail-safe mode is assessed. Furthermore, once it has reached its fail-safe mode, its ability to continue to perform its required function is also evaluated.
In cases where vulnerabilities are identified, the redundancy of the system is also evaluated. Redundancy is defined as the duplication of equipment within an emergency system ensuring that impairment of a single component would not result in a loss of system functionality. This involves assessing whether there are sufficient backup mechanisms in place to ensure the system can still provide the intended level of protection.
If there is insufficient redundancy, the analysis explores the potential for diversity within the system. This involves considering alternative approaches or components that could enhance the system’s ability to withstand and respond to MAH.
By conducting ESSA, companies can identify potential weaknesses in their safety systems and take appropriate measures to mitigate risks. This proactive approach enhances the reliability and effectiveness of emergency response procedures, ultimately ensuring the safety of personnel and minimizing the impact of MAH.
SynergenOG provides expert services in conducting Emergency System Survivability Analysis (ESSA) in the process industry. Our services are designed to assess and enhance the resilience of critical systems during emergencies:
SynergenOG’s ESSA Study is a meticulous process designed to safeguard your safety systems:
Understanding System Design and Functionality: We delve deep into the design and functionality of your safety systems. This understanding is crucial for assessing their vulnerability to each MAH.
Reviewing Vulnerability to MAH: We review each safety system in the context of its vulnerability to specific MAH scenarios. This involves evaluating the potential challenges that may compromise the successful activation of these systems.
Fail-Safe Mechanism Evaluation: We evaluate the impact of MAH on the ability for the system to move to its fail-safe mode. Furthermore, once it has reached its fail-safe mode, its ability to continue to perform its required function is also evaluated.
Redundancy Evaluation: In cases where vulnerability is identified, we assess the redundancy within the system. Redundancy is a critical factor in ensuring the resilience of your safety systems.
Diversity Assessment: If there is insufficient redundancy, we explore diversity options to enhance the robustness of your safety systems.