3 replies to this topic

[hanwoong]

I have some questions about how many compressors we have to add to the 40 inch x 2,500km Pipelines.

and What will be the better design? parall or series type?

 

Actually, I found that the system is working with 2~3 compressors by using Analysis Programme.

 

But, for Sound operation, adding more compressors will be better even though Capex and O&M Price is going up.

 

# Assumption :

- Design Pressure : 15 Mpa(from the Upstream source)

- Diameter : 40 inch

- Thickness : 25.4mm

   * It is just an example. We also need to think about larger and smaller dimension.

- Total Flow : 1,200 ton/hr(Natural Gas)

1) 1,000km Post : 300 ton/hr

2) 2,000km Post : 450 ton/hr

3) 2,500km Post : 450 ton/hr

   * all of the demands are Power Plant.

 

Anyone who are experienced at design and construciton of these kinds ofo pipelines?

 

Please, have a talk and give me adive.

 

Best Regards

[shan]

How can it be better "adding more compressor" with both Capex up and O&M up?  You want to make more money not cost more money on your project, right?

[hanwoong]

Thanks Shan and Nice to meet you.

 

It was wrong question.

 

Generally, deduction ofo the compressor's number will make the diameter bigger.

Addition of more compressors will make the diameter smaller.

 

I just want to know how other engineers generally design the long pipeline system with the compressor, especially the distance between each compressor with above condition.

 

In this regards, many engineering companies used to add the compressor per 100~200km.

 

I want to know their design experiences.

 

 

Best regards

Edited by hanwoong, 30 June 2015 - 05:25 AM.

[shan]

You may calculate Capex & O&M costs with the different combinations of number of compressor stations and line sizes to figure the optimal solution.  If there were one solution that fits all the pipeline networks, you and I may not even have today's job.