The Dominion New Market Project-Killer

How Pipeline Corrosion affects Operating Pressure*
By BH

(* or, "Why putting 33,000 HP of additional compression

     into a 50 y/o pipe might not be such a smart idea.")

In fact, it is a really stupid idea.

 
In my opinion, this goes right to the core

of why this project should be rejected.

 

In a nutshell:

A Steel Pipeline stores lots of potential energy.

• A Steel Pipe in the ground is also a Battery
  Stores Potential Energy (chemically).
  THIS IS WHY CORROSION HAPPENS.
  

• A Compressed Spring or a Piano Wire under tension
  stores energy mechanically .
  
  
• A Rolled Steel Pipe is like a compressed spring
  or a tight piano wire.
  
  
• Stored potential energy, like a wound spring,
  wants to release this energy, often with
  catastrophic results.
  

• The Dominion Pipeline Transports Mostly Methane. 
• Methane is stored (chemical) Energy.
  
  
• The Dominion pipeline transports now AT LEAST 92,000 dth/d.
  + 112,000 dth/day New Market = 204,000 dth/day.
  
  
• This is equivalent energy of 3 Hiroshima Bombs per day. 

Corrosion affects Max Operating Pressure

• Pipe Corrosion is Inevitable
  This is due to the "battery" effect stored in the metal.
  
  
• Metal Corrosion is Metal Loss
  The wall thickness will DECREASE over time.
  
  
• Pipe Thickness Determines Max Safe Operating Pressure
  SEE: Barlow's Formula: http://tridentsteel.com/barlows-formula/
  
  
  
  P=Max Safe Operating Pressure        S=Material Yeild Strength
  T=wall Thickness                                OD=DIameter
  SF=Safety Factor
  

• THEREFORE: the Max Safe Pressure MUST DECREASE Over Time
  
  
• THE DOMINION NEW MARKET PROJECT WILL INCREASE
  PRESSURE on a 55 y/o pipe
  
  
• This defies what physics demands.
  

This short video about Cathodic Protection (CP) talks a lot about corrosion.
Warning: he is a salesman for CP systems, so he is a little over-optomistic
about the effectiveness about CP's ability to PREVENT corrosion. If you
watch the whole thing, the truth is revealed.

https://www.youtube.com/watch?v=i2ZZEQUl05w

I talked about Barlow's Formula (which determines
the Maximum Pressure for a pipeline) here:
https://www.youtube.com/watch?v=hAd06PyldJY#t=27m09s
Watch from 27:09 to ~31:30.



--

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be happy and free from suffering :)
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