pipe line style and construction

 pipe line design and structure Essay

TRAINING COURSE ON

GAS PIPELINE NETWORK ANALYSIS

& SYSTEM BUILDING

Organized by simply:

Bangladesh Petroleum Institute

(27th August, 2013)

COURSE STRATEGY

• Program Modeling of any Transmission

Program

• System Modeling of any Distribution

System

• Choice of Appropriate method

• MODEL CALIBRATION

• Discussion

SHOWN BY:

ENGR. KAZI MD. ANWARUL AZIM

2

GAS MARKETING SYSTEM

PRESENTED SIMPLY BY:

ENGR. KAZI MD. ANWARUL AZIM

three or more

TYPICAL ATTRACTING

As placed drawings

PRESENTED BY:

ENGR. KAZI MD. ANWARUL AZIM

4

SYSTEM MODELING

SIMULATION MODEL

The basis for hydraulic analysis of any gas network is a

RUSE MODEL.

A SIMULATION UNIT consists of NODES and WATER LINES.

Consumers, makers and storages are all symbolized by

NODES.

NODES will be interconnected by PIPES.

PRESENTED BY:

ENGR. KAZI MD. ANWARUL AZIM

5

PROGRAM MODELING

NODES:

A node can be:

Consumer,

a simple node without ingestion

Producer

Interconnection between more than one pipes.

Nodes are seen as:

Name

Geometrical level

Pressure

Temperature

Circulation.

PRESENTED BY:

ENGR. KAZI MD. ANWARUL AZIM

six

SYSTEM BUILDING

NODES:

A node is placed in the unit using one of the next

criterias:

Important change of dimensions;

Branch;

A wanted position intended for known pressure of circulation;

Termination of your pipe without continuation;

A big consumer.

PRESENTED BY:

ENGR. KAZI MARYLAND. ANWARUL AZIM

7

SYSTEM MODELLING

WATER LINES

Pipes will be connections between nodes.

A common pipe is characterized by

An Upstream node;

A downstream node;

Length;

Interior diameter;

Roughness;

Pressure;

Pressure drops and;

The mass flow through the pipe.

SHOWN BY:

ENGR. KAZI MD. ANWARUL AZIM

8

PROGRAM MODELLING

PIPES

Pipes take gas among nodes.

The sum in the pipe moves going into a certain

node must equal the sum of the flows departing

the node through the connected pipes in addition to the

flow going out of the system throughout the node.

The sum from the flow getting into the system

through a node, need to equal the sum of the flow

going out of the client through the linked pipes.

In steady-state building, neither nodes or

water lines can store flow.

SHOWN BY:

ENGR. KAZI MD. ANWARUL AZIM

9

PROGRAM MODELLING

MOVEMENT

Flow within a pipe goes from the larger pressure end

of the pipe to the decrease pressure end. That is flow

always goes in the direction of the low pressure

node. Like a ball rolling all downhill, gas runs from

large to low.

Flow is done by a difference in pressure and

therefore flow causes frictional pressure losses.

As the stream increases the rubbing losses also

increase, and tend to limit or limit the stream.

The greater the pressure big difference, the greater the

flow level. And the increased the frictional pressure

losses.

PRESENTED BY:

ENGR. KAZI MD. ANWARUL AZIM

15

SYSTEM MODELLING

FLOW IN LOOPS

THE PRESSURE AND FLOW PRINCIPLES IN A GAS

SYSTEM

SIMPLY CANNOT

ALWAYS

BECOME

DIRECTLY

WORKED OUT, because of the characteristics of the

equations

that

identify

the

pressure-flow

relationship within a gas network,.

The beliefs must usually be determined by recursive

calculations where water pipe loop is present. To control this kind of

recursive procedure, an attempt was created to balance

the flow in and out of all nodes in the style.

When the discrepancy of these flows is within the

specified threshold, the version is said to be

" balanced”.

SHOWN BY:

ENGR. KAZI MARYLAND. ANWARUL AZIM

11

SYSTEM MODELLING

MOVEMENT IN COILS

The patience represents the quantity of imbalance that is certainly

acceptable for a particular analysis. The tolerance is definitely

analysis particular and should be based on certain

peculiarities of the model getting analyzed. The moment

establishing the convergence patience, consideration

must be given to a lot of factors:

The coarseness with the model info, that is, how

accurately is the model data known.

The magnitude with the total circulation in the program being

patterned.

And the planned use of the results from the analysis.

A suitable...


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