sasi innovation company limited whitepaper rev1.pdf · transforms the criteria to be sil level and...

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SaSI Innovation Company Limited

Copyright © 2015-2016 by SaSI Innovation Company Limited, All rights reserved

GENERAL INFORMATION - InnoSIFTM v1

Revision No: 1 6th December 2016

Copyright © 2015-2016 by SaSI Innovation Company Limited, All rights reserved TOC

TABLE OF CONTENTS

Introduction ................................................................................................................... 1

Smart Risk Matrix .......................................................................................................... 1

Detailed Risk Analysis With Bow-Tie Model ............................................................... 2

Production Loss Equation (PLE) ................................................................................. 2

Prior Use Device Justification ...................................................................................... 2

ALARP Demonstration .................................................................................................. 2

SIF Design Concept ...................................................................................................... 3

Complete SIF Design in One Page ............................................................................... 3

Fault Tree Analysis (FTA) for Subsystem Design Configuration .............................. 4

-Factor Estimator ......................................................................................................... 4

Proof Test Assignment ................................................................................................. 4

SIF Design Verification Dashboard .............................................................................. 5

Reporting Capability ..................................................................................................... 5

Copyright © 2015-2016 by SaSI Innovation Company Limited, All rights reserved Page 1

INTRODUCTION

InnoSIF™ is a sophisticated tool aiding the SIL assessment

by making complicated process simplified, yet realistic and

flexible based on data optimization concept. Users can

customize any data to reflect a real-life plant based on their

experience. The ambiguous risk assessment will be eliminated by Smart risk matrix and/or Bow-

tie modelling upon user’s preference. With the flexibility of SIF design developed by InnoSIF™,

there are no complex systems that cannot be evaluated.

SMART RISK MATRIX

Smart Risk Matrix is customizable tool for developing risk criteria. It can be set to any sizes by

combination of rows and columns from 1x1 up to 8x8. Three (3) aspects of consequence;

personnel safety, environment and economic will be aligned into one matrix via

acceptable/tolerable criteria as user's safety policy, and then Smart matrix will automatically

transforms the criteria to be SIL level and Risk Reduction Factor (RRF).

Simplified Risk Criteria Development for Consequence Analysis


DETAILED RISK ANALYSIS WITH BOW-TIE MODEL

Bow-tie model is a famous risk assessment methodology. It can develop a hazard scenario in

graphical and take account of the Layer of Protection analysis (LOPA) technique for detailing the

consequence severity evaluation.

PRODUCTION LOSS EQUATION (PLE)

Production loss equation (PLE) is a good practice to make high resolution of the economic impact

assumption on the hazardous event, The PLE can be built one or more cases depending on the

production loss scenario specific on the evaluated plant.

PRIOR USE DEVICE JUSTIFICATION

InnoSIF™ provides guideline for device justification as IEC61511 prior use

requirements. User can develop different justification cases as many as they want and

export reports out for approval process.

ALARP DEMONSTRATION

"As Low As Reasonably Practicable" or ALARP concept applied for economic

justification when decision making required to choose a fit-for-purpose SIF design

among several alternative designs.


SIF DESIGN CONCEPT

SIF design concept of InnoSIF™ is more flexible to develop a complex SIF. To simplify process

of design, InnoSIF™ provides user-friendly interface to build a complete SIF design in one page.

The subsystem configuration can be developed using Fault Tree Analysis modelling (FTA),

which helps users demonstrate their design in graphical.

COMPLETE SIF DESIGN IN ONE PAGE

Complex SIF can be easier designed in one page with simplified process. The SIF design concept

implemented in InnoSIF™ is more flexibility, No SIF is too complex to achieve in InnoSIF™.


FAULT TREE ANALYSIS (FTA) FOR SUBSYSTEM DESIGN CONFIGURATION

Subsystem design configuration task is frustrated the most SIF designer in complex SIF. Fault

Tree Analysis (FTA) helps designer to simplify it, and make complex SIF calculation achieved in

easier way. FTA model can help users demonstrate their design in visualization concept, it can

reduce error on SIF design process.

-FACTOR ESTIMATOR

Common cause failure (CCF) or -factor is an important parameter required in PFD

calculation. InnoSIF™ provides a systematic method to estimate the -factor as the

technique provided by IEC61508 Part-6.

PROOF TEST ASSIGNMENT

The proof test assignment

screen makes this task

simplified and faster as all

devices / components in a

SIF are combined into one

point of configuration, so

proof testing tasks can be

assigned to any devices in a

SIF easily.


SIF DESIGN VERIFICATION DASHBOARD

With SIF design verification dashboard, it is very easy to point out what is the SIF design

problems. User can correct the SIF design faster and easier. Design optimization is

very simple task for any users with SIF design verification dashboard functionality.

REPORTING CAPABILITY

InnoSIF™ is built-in with report generating tool. Related SIL study data can be easily exported in

MS Excel format and SIL study results will be generated as individual SIF report, it is very useful

for developing of Safety Requirement Specification (SRS) document.

Causes and Effects Diagram

Causes and Effects diagram is very useful tool for safety validation process. It shows

relationship among sensing devices condition and final elements action that function in

the logic solver. User can verify correctiveness of a SIF action, easily.

Participation Matrix

Participation matrix is another useful feature to summarize the members participation

of each SIF in the SIL study workshop. This will enable traceability for users or auditors

to track the right members when some particular information may be required.

SaSI Innovation Company Limited

SIL STUDY REPORTSaSI Innovation Company Limited

SIL Study ProjectGas Production No.1

All Units

Document No.Date

Rev0

Date Prepared By Approved ByRevision NoteMario K.20-Jan-2016 Issue for Approve

The document was automatically prepared by InnoSIF software. The contents in the document developed through competent end-user team , the software developer team shall not be liable in any event consequential damages or safety incident in connection with the application of the document.

The report format is copyright © 2015-2016 by SaSI Innovation Company Limited., all rights reserved.

Example

STUDY TEAM

DOCUMENT REFERENCE

SIF LIST

SIF-100-002 V-200 Pressure HH V-200SIF-100-003 V-100 Level LL V-100

All UnitsMario K.

SIL STUDY REPORT - General InformationSIL Study ProjectSaSI Innovation Company LimitedSIL Study Project (Demo)

Plant :Unit :

Prepared By :

Gas Production No.1Project :Client :

Description :

V-100V-100 Pressure HHSIF-100-001

C

SIF ID Description Function Group

Piping and Instrumentation Diagram PID-100-002-XXX

Mario K. FacilitatorFull Name Role

Document Name Document Code Revision

Peter C. ProcessOneil A. Mechanical

Example

TOLERABLE / ACCEPTABLE CRITERIA - HEALTH & SAFETYLevel

7654321

TOLERABLE / ACCEPTABLE CRITERIA - ENVIRONMENTLevel

7654321

TOLERABLE / ACCEPTABLE CRITERIA - ECONOMICLevel

7654321

PRODUCTION LOSS EQUATION (PLE)

COSTING ITEMS LIST

INITIATING CAUSES

V-100 Vessel V-100 Rupture 200,000

P-100 Failure (Stop) 0.0033333 0.01 User Define

0.1 100 - 1,000 USDNo Impact 100 1 < 100 USD

0.001 10 - 100 kUSDMinor 1 0.01 1 - 10 kUSD

0.00001 1 - 10 MUSDMajor 0.01 0.0001 100 k - 1 MUSD

Slight 10 0.1 Slightly ImpactNo Impact 100 1 No Impact

Moderate 0.1 0.001 Corporate Emer. ResponseMinor 1 0.01 Localized Impact

Massive 0.001 0.00001 Regional AssistanceMajor 0.01 0.0001 Community Emer. Response

Slight 10 0.1 RWDC (<30 Days)No Impact 100 1 No Safety Concern

Moderate 0.1 0.001 LWDC (<30 Days)Minor 1 0.01 RWDC (>30 Days)

Massive 0.001 0.00001 DisabilityMajor 0.01 0.0001 LWDC (>30 Days)

SIL STUDY REPORT - SIL ClassificationProject : SIL Study Project Plant : Gas Production No.1Client : SaSI Innovation Company Limited Unit : All Units

Description : SIL Study Project (Demo) Prepared By : Mario K.

Fatality0.0000010.0001ExtremeSeverity Tolerable Freq. Acceptable Freq. Consequence

Severity Tolerable Freq. Acceptable Freq. ConsequenceExtreme 0.0001 0.000001 International Assistance

Acceptable Freq. ConsequenceExtreme 0.0001 0.000001 > 10 MUSD

Period #1Default PLE

Severity Tolerable Freq.

Massive 0.001

Moderate 0.1

Slight 10

130,000Dry RunningP-100 PumpItem Name Costing Description Cost

2,000Loss / Hour

00End-HourStart-Hour

100-PV-100 Failure User DefineData Source

0.1666667Freq (Min)

0.1666667Freq (Max)

Example

SIL STUDY REPORT - SIL ClassificationProject : SIL Study Project Plant : Gas Production No.1Client : SaSI Innovation Company Limited Unit : All Units


BARRIERS (IPL)

CONDITIONAL MODIFIERS

Inherently Safe Design 0.009 0.011 User DefinePT-100 Alarm and Operator Response

PFD (Min) PFD (Max) Data Source0.09 0.11 Test interval 2Y

Occupancy RateFactor (Min) Factor (Max) Data Source

0.25 0.25 User Define

Example

SIL TABLE

SIL XSIL 4SIL 3SIL 2SIL 1SIL aSIL -

RULES SET / DESIGN ASSUMPTION

SUBSYSTEMS DESIGN CONFIGURATION

SIF-100-001, Logic Solver Subsystem

1 10 Not Required 0 10.1 1 0.7 1 10

0.01 0.1 0.07 10 1000.001 0.01 0.007 100 1,000

10,000 100,0000.0001 0.001 0.0007 1,000 10,000

SIF-100-001, Sensing Element Subsystem

SIL STUDY REPORT - SIF VerificationProject : SIL Study Project Plant : Gas Production No.1Client : SaSI Innovation Company Limited Unit : All Units


0.000010.000001PFDavg (Lower) PFDavg (Upper) Target PFDavg RRF (Upper)RRF (Lower)

1,000,000100,000

20

Redesign

Equipment Life Time (Year) :

FE Subsystem Reliability Budget (%) :LS Subsystem Reliability Budget (%) :SE Subsystem Reliability Budget (%) :

Generic Subsystems MTTR (Hour) :Beta-Factor or CCF across Subsystems :

50153548

0.005

0.00001 0.0001 0.00007

Example



SIF-100-001 (Copy), Logic Solver Subsystem

SIF-100-001 (Copy), Final Element Subsystem

SIF-100-001, Final Element Subsystem

SIF-100-001 (Copy), Sensing Element Subsystem

Example



SIF-100-001-A1, Logic Solver Subsystem

SIF-100-001-A1, Final Element Subsystem

SIF-100-001-A1, Sensing Element Subsystem

Example



V-100 Feed Incoming

V-100 Pressure HH (A1)

Plant-1 SIS

V-100 Pressure HH

Example

GENERAL RECOMMENDATIONS

SPECIFIC SIF ACTIONS LIST

SIL STUDY REPORT - Recommendation ListProject : SIL Study Project Plant : Gas Production No.1

Update P&ID Process Dept

Client : SaSI Innovation Company Limited Unit : All UnitsDescription : SIL Study Project (Demo) Prepared By : Mario K.

SIF ID: SIF-100-001Upgrade Transmitter to be SIL-Certified Device Instrument DeptExisting device is pneumatic looppoor reliability experenced

Wrong Tag No.

Example

SIF ID : Status :

Hazard : Demand : Consequence :

Initiating Cause #2P-100 Failure (Stop) 6.67E-03 /yearInitiating Cause #2 / Barriers (IPL) and Conditional ModifiersPT-100 Alarm and Operator Response 1.00E-01 6.67E-04

Inherently Safe Design 1.00E-02

Economic Consequence / Barriers (IPL) and Conditional ModifiersInherently Safe Design 1.00E-02 1.74E-04

Health and Safety Consequence / Barriers (IPL) and Conditional ModifiersOccupancy Rate 0.25 4.34E-03

Environment Consequence / Barriers (IPL) and Conditional ModifiersInherently Safe Design 1.00E-02 1.74E-04

4.34E-05

100-PV-100 Failure 1.67E-01 /yearInitiating Cause #1 / Barriers (IPL) and Conditional ModifiersPT-100 Alarm and Operator Response 1.00E-01 1.67E-02

Hazard Analysis

This SIF is designed to prevent V-100 ruptured from overpressure siatuation.

The hazard potential to be occurred when ....

IC A: 100-PV-001 Valve Failure. IC B: P-100 Failure (Stop).

Protection LayerIPL A: PT-100 Alarm and Operator

Response.IPL B: Inherently Safe Design (V-100 designed as ASME standard).

Once the hazard occured, it will lead to V- 100 ruptured and then ....

Health and Safety:Fatality case can be occured from overpressure impact to personnel around

the location (occupancy rate is 0.25). Environment:

N/A Economic:

200,000 USD of V-100 Replacement.

Hazard Analysis Model

Initiating Cause #1

SIF-100-001 V-100 Pressure HH Pass

Function Group : V-100 Process Safety Time (Sec) : 5


SIL STUDY REPORT - SIF Analysis and DesignProject : SIL Study Project Plant : Gas Production No.1

Example

SIF ID : Status :SIF-100-001 V-100 Pressure HH Pass




Hazard Analysis Result :

7 0.351 0.155 0.5

SIL 1 2.33E-02 43

Economic 1.74E-04 SIL a

Target SIL Level Target PFDavg Required RRF

Health and Safety 4.34E-05 SIL 1Environment 1.74E-04 SIL -

Severity Level Frequency SIL Level

Example





1oo1

1oo2

1oo1

Test Requirements :S/DYesYesYesYesYes100-SDV-001 Overhaul and Test Manual 35,040 (4Y)

100-PT-001 B (A1) Overhaul and Test Manual 35,040 (4Y)100-SIS-001 Full Test Manual 35,040 (4Y)

8 barg 100-PT-001 B (A1) 0.1 1.05E-02 1.22E-02

100-PT-001 A (A1) Overhaul and Test Manual 35,040 (4Y)

V-100 Pressure Tx (A1) 0.1 7.07E-04 8.02E-048 barg 100-PT-001 A (A1) 0.1 1.12E-02 1.29E-02

Equipment Tag Test Item Mode Interval - Hrs100-PT-001 A Overhaul and Test Manual 35,040 (4Y)

V-100 Inlet Valve 4 2.40E-05 6.40E-05Close 100-SDV-001 4 2.40E-05 6.40E-05

Pass 4 2.40E-05 6.40E-05V-100 Feed Incoming 4 2.40E-05 6.40E-05

Trip 100-SIS-001 0.3 3.89E-05 4.71E-05Final Element

Subsystem

HFT Requirement Response Time PFDavg (Min) PFDavg (Max)

Plant-1 SIS 0.3 3.89E-05 4.71E-05SIS Controller 0.3 3.89E-05 4.71E-05

Logic SolverSubsystem

HFT Requirement Response Time PFDavg (Min) PFDavg (Max)Not Evaluated 0.3 3.89E-05 4.71E-05

V-100 Pressure Tx 0.1 1.11E-02 1.30E-028 barg 100-PT-001 A 0.1 1.10E-02 1.30E-02

0.1 3.72E-05 4.47E-05V-100 Pressure HH 0.1 3.72E-05 4.47E-05

SIF Design : Low Demand Mode

Sensing ElementSubsystem

HFT Requirement Response Time PFDavg (Min) PFDavg (Max)Pass

Example





SIF Design Result :

Sensing ELogic SolvFinal Element0.00016 29% 30% 41%0.00816 4.5E‐05

0.0035 4.7E‐05

Design PF 0.01165 6.4E‐05

Target PFDavg

Pass

Achieved SIL Level Achieved PFDavg (Max) Achieved RRF (Min)

SIL 2 2.49E-03 N/A

Reset MethodPass Pass GOOD Require Manual

RRF (Max) Total Response TimeN/A N/A 4.400 Sec

Design HFT Requirement Response Time Design Quality Override Facility

PFDavg (Min) PFDavg (Max) STR (Min) STR (Max)

Pass2.01E-03 2.49E-03 8.09E-02 9.52E-02RRF (Min)

29%

30%

41%

Sensing Element

Logic Solver

Final Element

Design PFDavg

Target PFDavg

0.00E+00

5.00E‐03

1.00E‐02

1.50E‐02

Example

Copyright © 2015-2016 by SaSI Innovation Company Limited, All rights reserved

SaSI Innovation Company Limited 416/2 M.2, Sattahip Sub-District, Sattahip District

Chonburi 20180, THAILAND

P.O. Box 2/1326, Prasertmanukit Road, Senanikom Sub-District, Jatujak District

Bangkok 10900, THAILAND

Contact [email protected]

Tel: +66814123650 www.sasiinnovation.co.th

mailto:[email protected]

sasi innovation company limited whitepaper rev1.pdf · transforms the criteria to be sil level and...

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