download
Transcript of download
![Page 1: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/1.jpg)
GENERAL PIPING DESIGN
![Page 2: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/2.jpg)
GENERL PIPING DESIGN
Feasibility studyPlans of route:
Environmental considerations.
Safety considerations.
Service conditions:
Substance to be transported.
Pressure, temperature, flow.
Surge conditions (liquid, two phase or dry gas).
Pressure drop, selection of pipe diameter.
Quality plan.
![Page 3: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/3.jpg)
Why dose the feasibility study is required?
Because it is the procedure to determine the preliminary design factor.
Feasibility study
GENERL PIPING DESIGN
![Page 4: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/4.jpg)
Feasibility study
GENERL PIPING DESIGN
![Page 5: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/5.jpg)
Feasibility study
GENERL PIPING DESIGN
![Page 6: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/6.jpg)
Feasibility study
GENERL PIPING DESIGN
![Page 7: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/7.jpg)
Feasibility study
GENERL PIPING DESIGN
![Page 8: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/8.jpg)
Feasibility study
GENERL PIPING DESIGN
![Page 9: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/9.jpg)
GENERL PIPING DESIGN
Preliminary Engineering
Design factor :
Refinement factor.
Service conditions.
Detailed classification of locations..
Design criteria :
Pressure\temperature design.
Stress criteria.
Expansion and flexibility.
![Page 10: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/10.jpg)
GENERL PIPING DESIGN
Preliminary Engineering
Materials :
Selection of pipe wall thickness.
Selection of materials.
![Page 11: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/11.jpg)
GENERL PIPING DESIGN
Preliminary Engineering
Design factor:
It is the ratio of the Hoop stress in the pipe at the design pressure to the yield stress of the pipe material.
•It is a function of:
•Design pressure.
•Pipe diameter.
•Pipe wall thickness. The design factor determines the probability of a pipeline rupturing if it has been damaged or is corroded.
![Page 12: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/12.jpg)
Why dose the preliminary engineering is required?
Because it is the procedure to determine the submission for construction authorization.
GENERL PIPING DESIGN
![Page 13: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/13.jpg)
Detailed DesignCrossings :
Environmental factors.
Crossing design.
Review of design factor.
Pipeline installations :Pipeline design.
Pressure design.
Equipment selection.
Review of design factor.
Safety systems.
Stress criteria.
Expansion & flexibility.
Hazardous studies.
GENERL PIPING DESIGN
![Page 14: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/14.jpg)
Corrosion :External corrosion.
Corrosion survey.
Cathodic protection.
Testing and commissioning :environmental factors.
Testing plan.
Commissioning plan.
GENERL PIPING DESIGN
![Page 15: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/15.jpg)
Why dose the detailed design is required?
Because it is the procedure to make the project documents.
GENERL PIPING DESIGN
![Page 16: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/16.jpg)
DESIGN FLOWCHART
Route Quality Assurance Service Conditions
Crossing
Internal Corrosion
Design Factor
External Corrosion
Terminals & Stations
Testing & Commissioning
Materials
Design Criteria
Chosen Design
GENERL PIPING DESIGN
![Page 17: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/17.jpg)
SMYS
0.5% 100%
Plastic
UTS
Strain
Str
ess
YS
Elastic Failure
SMYS
GENERL PIPING DESIGN
![Page 18: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/18.jpg)
Design factor ( f )
t d
The pipe wall thickness is a function of:
Design pressure ( P ) t P
Pipe diameter ( d )
Yield strength of the pipe material ( SY) fs 1/SY
t ( P x d ) / SY
t = Constant x ( P x d / SY )
t = 1/f x (P x d / SY)
f = ( P x d / SY x t )
GENERL PIPING DESIGN
![Page 19: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/19.jpg)
P
t
d
Hoop stress
Sh= P d / 2t
GENERL PIPING DESIGN
![Page 20: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/20.jpg)
P
t
d
Longitudinal stress
Sh= P d / 4t
GENERL PIPING DESIGN
![Page 21: download](https://reader036.fdocuments.in/reader036/viewer/2022070321/558ca826d8b42a46388b456d/html5/thumbnails/21.jpg)
API 5L: 1991 SPECIFIED MINIMUM YIELD STRENGTHSPECIFIED MINIMUM YIELD STRENGTH
lbf/ in2 N/mm2GRADE OF MATERIAL
BX42X46X52X56X60X65X70X80
35000
42000
46000
52000
56000
60000
65000
70000
80000
240
289
317
358
55
386
413
448
482
PIPE MATERIALS
Yield strength
GENERL PIPING DESIGN