IOM ACM -Final

Safety Lifecycle Experience : 

Safety Lifecycle Experience

Safety Lifecycle Experience : 

Safety Lifecycle Experience

Q1 - Concept : 

- Concept Q1 - Concept Return

Q2 - Design : 

Q2 - Design Return

Q3 - Implement : 

Q3 - Implement Return

Q4 - Operate : 

Q4 - Operate Return

Safety Lifecycle Experience : 

PHA HAZOP SIL/LOPA Contingencies SRS Improve Operating Risk Safety Lifecycle Experience

Slide 8: 

Minimize Operating Risk Exposure

Functional Safety : 

Functional Safety SIL Contingencies LOPA HAZOP RISK TF RBD MP Dashboard Hidden Danger Meter

Q1 - Concept : 

- Concept Client Situations Gap Analysis Not Enough Safeguards Too Many Safeguards Obsolete Equipment Control DCS/PLC Upgrades Spurious Trips Accidents Compliance (Industry/Company) Undersized Relief Systems HIPPS F&G ESD New Plants Q1 - Concept Return

Functional Safety : 

Functional Safety SIL Contingencies LOPA HAZOP RISK TF RBD MP Dashboard Hidden Danger Meter

Risk & Layer of Protection : 

Risk & Layer of Protection Return

LOPA- Safety case : 

LOPA- Safety case 1st Hazardous Event I N I T E V E N T S CONSEQUENCES Mitigation/Recovery Measures Hazardous Event Causes Fp1 = Fnp1 / RR1 X RR3 X RR5 Fp2 = Fnp2 / RR2 X RR3 X RR5 Fp3 = Fnp2 / RR1 x RR3 X RR5 Additional Risk Reduction required ? = MF / TF Initiating Event Frequencies (Fnp) Consequence Severity x (Tolerable Frequency) Safety Asset Environment Frequency of the Cause with no protection (Mitigated Frequency- MF) Fp = Fp1 + Fp2 + Fp3 Preventative Measures Frequency of the cause with protection Fp Return

Functional Safety : 

Functional Safety SIL Contingencies LOPA HAZOP RISK TF RBD MP Dashboard Hidden Danger Meter

Q2 - Design : 

Client Situations Problem Identified Scoping Solutions Potential Solutions Proposed Create RFP Specs for tender Develop Design Basis Documents (P&IDS, Cause & Effects, Control Narratives) Q2 - Design Return

Functional Safety : 

Functional Safety SIL Contingencies LOPA HAZOP RISK TF RBD MP Dashboard Hidden Danger Meter

LOPA (method) : 

LOPA (method) Thickness of arrow represents the amount of Risk before IPLs. LOPA Loop or scenario IPL 1 IPL 2 IPL 3 Initiating Event Frequency Protection Layers Risk Risk Risk Risk CONSEQUENCES IPL 1 IPL 2 IPL 3 Risk Risk Risk Risk CONSEQUENCES Return

Contingencies : 

Contingencies Thickness of arrow represents the amount of Risk before IPLs. LOPA Loop or scenario Initiating Event Frequency Protection Layers IPL 1 IPL 2 IPL 3 Risk Risk Risk CONSEQUENCES Risk Implement Contingency for loss of Safeguard. Return

Contingencies : 

Contingencies Thickness of arrow represents the amount of Risk before IPLs. LOPA Loop or scenario Initiating Event Frequency Protection Layers IPL 1 IPL 2 IPL 3 Risk Risk Risk CONSEQUENCES Risk Implement Contingency for loss of Safeguard. Return

Contingencies : 

Contingencies Thickness of arrow represents the amount of Risk before IPLs. LOPA Loop or scenario Initiating Event Frequency Protection Layers IPL 1 IPL 2 IPL 3 Risk Risk Risk CONSEQUENCES Risk Implement Contingency for loss of Safeguard. Implement Contingency for loss of Safeguard. Return

Functional Safety : 

Functional Safety SIL Contingencies LOPA HAZOP RISK TF RBD MP Dashboard Hidden Danger Meter

Safety Requirement Specifications, SRS : 

Safety Requirement Specifications, SRS Return

Functional Safety : 

Functional Safety SIL Contingencies LOPA HAZOP RISK TF RBD MP Dashboard Hidden Danger Meter

Q3 - Implement : 

Client Situations New System Build Fails to Operate Third party Participation Quality Control Q3 - Implement Return

How? : 

How? Maintenance overdue Maintenance coming up Preventive maintenance schedules Training schedules HDA and A&E Repurposed Engineering Data HAZOP data LOPA data Contingency plans Historical data Operator observations Normal Suspect Confirmed Contingencies Equipment out of service Equipment history Preventive maintenance overdue Testing overdue or nearing Inspections overdue Workflow integration Suspect Diagnostics Alarm on “LT” PID Loop tuning changes Set-point changes on trips, alarms PID controller in “manual” Equipment bypass “on” Return

Functional Safety : 

Functional Safety SIL Contingencies LOPA HAZOP RISK TF RBD MP Dashboard Hidden Danger Meter

Implementation Tools : 

Implementation Tools SilCore MP MP E N A B L E D Operate & Maintain M O C PHA HAZOP LOPA SIL Contingency SRS Return

Q4 - Operate : 

Client Situations Missing MOC Process Lack of Safety Culture Industry Compliance Risk Exposure Awareness Plant Process Upgrades Excessive High Demand Placed on Safeguard Systems (i.e. Excessive Valve Closures) High Spurious Trip Rates Contingency Planning for outage of Equipment & Safeguards & Operator Rounds Delayed Testing / Repair (i.e. Extended TA Times) Q4 - Operate Return

Functional Safety in Operation : 

Functional Safety in Operation Feed Sales Utilities Design Risk Hidden Danger Small stuff Optimum Sales Operations Operations Return

Contingency Planning and Risk Exposure : 

Contingency Planning and Risk Exposure Risk Tolerant? Yes Repair faulty IPL No IPL Fault Detection Operator Alarm Repair Faulty IPL Repair Completed Within MTTR? Yes IPL Return to Normal Operation Adequate Spares Shutdown Or Adequate Alternative Monitoring and Contingency Plan No IEC 61511-1,11.3 Contingency Plan Normal (safe state) Normal (Intended) Suspected Confirmed Contingency Return

Situation Analysis : 

Situation Analysis Normal (Intended) Suspected Confirmed Contingency Return

Dashboard : 

Dashboard Return

Quad Model : 

Quad Model Return SIL Contingencies LOPA HAZOP RISK TF RBD MP Dashboard Hidden Danger Meter SRS