pipe line design and construction

TRAINING PROGRAM ON
GAS PIPELINE NETWORK ANALYSIS
& SYSTEM MODELING

Organized by:
Bangladesh Petroleum Institute
(27th August, 2013)

COURSE PLAN
• System Modeling of a Transmission
System
• System Modeling of a Distribution
System
• Selection of Appropriate formula
• MODEL CALIBRATION
• Discussion
PRESENTED BY:
ENGR. KAZI MD. ANWARUL AZIM

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GAS MARKETING SYSTEM

PRESENTED BY:
ENGR. KAZI MD. ANWARUL AZIM

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TYPICAL DRAWING
As laid drawings

PRESENTED BY:
ENGR. KAZI MD. ANWARUL AZIM

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SYSTEM MODELING
SIMULATION MODEL
The basis for hydraulic analysis of a gas network is a
SIMULATION MODEL.
A SIMULATION MODEL consists of NODES and PIPES.
Consumers, producers and storages are all represented by
NODES.
NODES are interconnected by PIPES.

PRESENTED BY:
ENGR. KAZI MD. ANWARUL AZIM

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SYSTEM MODELING
NODES:
A node can be:
Consumer,
a simple node without consumption
Producer
Connection between one or more pipes.

Nodes are characterized by:
Name
Geometrical level

Pressure
Temperature
Flow.
PRESENTED BY:
ENGR. KAZI MD. ANWARUL AZIM

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SYSTEM MODELING
NODES:
A node is placed in the model using one of the following criterias: Important change of dimensions;
Branch;
A wished position for known pressure of flow;
Termination of a pipe without continuation;
A large consumer.

PRESENTED BY:
ENGR. KAZI MD. ANWARUL AZIM

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SYSTEM MODELLING
PIPES
Pipes are connections between nodes.
A pipe is characterized by
An Upstream node;
A downstream node;
Length;

Internal diameter;
Roughness;
Pressure;
Pressure drops and;
The mass flow through the pipe.

PRESENTED BY:
ENGR. KAZI MD. ANWARUL AZIM

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SYSTEM MODELLING
PIPES
Pipes carry gas between nodes.

The sum of the pipe flows going into a specific node must equal the sum of the flows leaving the node through the connected pipes plus the flow leaving the system through the node.
The sum of the flow coming into the