INTRODUCTION
Oil, gas and chemical field companies handle the most dangerous chemicals and processes across all industries. Catastrophic incidents and casualties are products of the failure to manage process safety The international and US standards for Safety Instrumented Systems (SISs), International Electrotechnical Commission IEC and ISA, require that Safety Integrity Levels (SILs) be determined for Safety Instrumented Functions (SIFs) to meet tolerable risk criteria. The standards identify several methods that can be used for this purpose including Layers of Protection Analysis (LOPA), risk graphs and risk matrices. This course explains how these methods can be used. A detailed procedure is provided for using LOPA for SIL determination.Course participants will have sight visit day to a company related to their job specification (Petrochemical company). The concept of a Safety Instrumented Fire & Gas Systems (SI-FGS) has emerged in the process industry. Its arrival is has generated both controversy and confusion. The term SI2 of 13FGS represents the attempted application of perfo rmance based safety concepts to the design of Fire & Gas Detection Systems. A Safety Instrumented Fire & Gas System (SI-FGS) is a system comprised of initiating device sensors, logic solvers, final control elements, fire safety functions and / or notification appliances for the purpose of mitigating an event when predetermined conditions are violated. The Fire and Gas system (FGC) is designed to give the earliest possible warning and location of a fire in its initial stage, a flammable gas leakage or accumulation up to the lower explosive limit (LEL %) and any toxic gas likely to be present up to the occupational exposure limits (OEL).
PROGRAM OBJECTIVES
- Gaining an in-depth knowledge of OSHA Process Safety Management (PSM)
- Learning how to perform a LOPA study to evaluate the effectiveness of process safeguards
- Being able to determine required SILs for SIFs using LOPA, risk graphs and risk matrices
- Improving safety skills through techniques in process safety management
- Promoting business continuity improvement through understanding of safer systems design
- Describing the main types of smoke detectors and their working principle
- Understanding the working principle of the different types of heat detectors
- Describing the function of VESDA system
- Knowing the typical loop architecture of smoke/ heat detectors
- Describing different types of fire detectors and their principle of operation
- Specifying appropriate type of fire detector for the service
WHO SHOULD ATTEND?
- Process safety personnel
- Control systems engineers
- Project engineers
- Facility personnel who are involved in implementing standards for safety instrumented systems
PROGRAM OUTLINE
- Introduction
- Overview
- Requirements of SIS standards
- Concept of hazardous events for SIFs
- Meaning and development of risk criteria
- Use of risk matrices
- Use of risk graphs
- Process Safety Concepts
- Overview of LOPA
- Use of LOPA
- Documentation and example application
- Selection of hazard scenarios
- Definition of scenario consequences
- Identification of initiating events
- Consideration of enablers
- Failure data
- Making risk decisions
- Remaining Steps
- Understanding protection layers
- Other uses of LOPA
- SIL Terms and concepts
- Requirements for SIL verification
- Reliability metrics
- SIL determination
- SIS components and their failures
- Diagnostics
- Common cause failures
- Failure modes, effects and diagnostic analysis
- Fire and Gas System Purposes, Architecture and brief about the Traditional and Addressable Systems.
- Different types of Detectors, operation and application:
- Manual Call Points
- Smoke Detectors
- Heat Detectors
- Infra-Red Oil Mist Detectors
- Ultra Violet Flame Detectors
- Infra-Red Flame Detectors
- Combined Ultra Violet / Infra-Red Flame Detectors
- Flammable Gas Detectors
- Toxic Gas Detectors
- Spill detectors
- Fusible Plugs
- Detector Interface Modules
- Fire Detectors Modules
- Flammable Gas Detectors Module
- Toxic Gas Detector Module
- Fire & Gas control panel; Electrical Operation, Control Action, Interface with DCS, PLC System, Event Logging
- Electrical connection of detectors in a loop
- Fire Extinguishing Control Systems components and operation
- Total Flood Systems
- Discharge Solenoids
- Mechanical Lock-Out Facility
- Discharge Pressure Switch
- Local Release Facility
- Visual Warning Lamp Clusters
- Extinguishing Discharge Audible Alarm
- General Alarms
- General Audible Alarms
- General Visual Alarms
- Gas Hazard Warning Lamps
- Read and understand a fire detection and suppression system overview drawing.
- Deluge System (brief about the purpose and controls on a sample drawing)
- Typical Fire & Gas Systems
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