QRA와 FERA의 차이점

The main objectives of a QRA are: [2]
 quantifying the overall risk associated with a facility or activity;
 identifying the main contributors to the overall risk;
 identifying measures to reduce the overall risk and analyzing their effectiveness;
 where a number of alternative options are available, determining the relative safety and cost effectiveness of the alternatives;
 assisting in the identification of new alternatives;
 demonstrating compliance with ADNOC risk tolerability criteria and assisting in the demonstration and achievement of ALARP to all stakeholders;
 increasing awareness of hazards, scenario-based escalation and mitigation; and
 as an aid to communication to the workforce and third parties of their impact on, and exposure to, risk.

 

 

FERA Purpose [1]

The primary purposes of a FERA study are as follows:

• Identify the fire and explosion hazards on the facility that may pose a risk to personnel, effect the facility equipment and may escalate to other parts of the facility
• Quantification of fire and explosion risks arising from loss of containment
• To determine the acceptability of the calculated fire and explosion risk at the facilities and identification of the key fire and explosion risk contributors. Risk contributors needs to be identified by the source and location
• Assess the benefit of existing and possible inherently safe, prevention, detection, control and mitigation measures for identified fire and explosion scenarios 
• Comparing fire and explosion risks of the design options being considered. This helps identifying design options with low risk, and selecting the option which is best from a risk
• For a Brownfield project the purpose of the FERA is to assess the new fire and explosion risks due to plant modification and to arrive at the cumulative risk of the new and existing facilities. In such a project the risk from the new facilities will not be assessed separately, it will be assessed in relation to the existing risk at the facility, and in particular the process facilities adjoining to the new facilities
• To provide clear and unambiguous recommendations for risk reduction where necessary, to ensure that the facilities fire and explosion risks are controlled within acceptable limits.

Predicted fire durations assuming operation of ESD/Isolation/BD, bunding and drainage provisions, but assuming no operation of AFP protection (taken from FERA) [3] 

 

 

 

1 .HSE-RM-ST09

2. HSE-RM-ST10

3.  AGES-PH-03-002 (Part 3) 5.4