TYPICAL GAS SYSTEM OVERVIEW

Typical Gas Pipeline System
Role of Operator
Overview of Typical Gas Sales
Contracts
TYPICAL GAS METERING SYSTEM OVERVIEW

Introduction to Fiscal Metering
Pipework and Valving
Flow Measurement
Secondary Instrumentation
PRIMARY FLOW MEASUREMENT INSTRUMENTATION

The Flowmeter
Meter Tubes and Other Fittings
Removals/Replacement Procedure
FLOW MEASUREMENT ACCURACY

Flow Measurement Uncertainty,
Rangeability and Calibration
Calculating Uncertainty
Traceability
SECONDARY MEASUREMENT INSTRUMENTATION

Pressure Measurement
Temperature Measurement
Density Measurement
GAS QUALITY MEASUREMENT

The Gas Sampling and Conditioning System
Relative Density Analyser
Moisture Analyser
GAS CHROMATOGRAPHS

Introduction to Gas Chromatography
Gas Conditioning System
Gas Chromatograph
Chromatograph Controller
Calibration and Maintenance
COMPUTER SYSTEM OVERVIEW

Hardware
Software
Display Formats
Alarm Handling and Interpretations
Response to Input Failures
SUPERVISORY COMPUTER SYSTEM

Hardware and Software
Operator Interface
System Security
Communications
METERING PANEL AUXILIARY EQUIPMENT

Analogue to Digital Conversion
Power Supplies
INTRODUCTION TO PRIMARY FLOW MEASUREMENT DEVICES

Introduction
Basic Principles of Pipe Flow
Mathematical Developments
PRIMARY FLOW MEASUREMENT DEVICES – Differential Pressure Type

Simple Theory
Orifice Meters
Venturi Meters
Flow Nozzles
Low Loss Devices
Variable Orifice Meters
Variable Area Meters
Pitot Tubes and Pitot Static Tubes
Target Flowmeters
PRIMARY FLOW MEASUREMENT DEVICES – Displacement Flowmeters

Basic Principles
Liquid Meters
Designs for Gases
Advantages and Disadvantages
Applications
PRIMARY FLOW MEASUREMENT DEVICES – Rotary Inferential Meters

Turbine Flowmeters
Miscellaneous Designs
Advantages and Disadvantages
PRIMARY FLOW MEASUREMENT DEVICES – Fluid Oscillatory Flowmeters

Principle of Operation
Vortex Shedders
Advantages and Disadvantages
PRIMARY FLOW MEASUREMENT DEVICES – Electromagnetic Flowmeters

Principle of Operation
AC and Pulsed DC Types
Applications
Advantages and Disadvantages
PRIMARY FLOW MEASUREMENT DEVICES – Ultrasonic Flowmeters

Doppler Type
Time-of -Flight Type
Clamp-on Type
Applications
Advantages and Disadvantages
PRIMARY FLOW MEASUREMENT DEVICES – Mass Flow Measurement

Coriolis Flowmeters
Angular Momentum Devices
Thermal Meters
Applications
Advantages and Disadvantages
PRIMARY FLOW MEASUREMENT DEVICES – Miscellaneous

Cross Correlation
Tracer Methods
Weighing Methods
Lasers