Overpressure due to thermal expantion of a liquid in a piping.

[Eliz2697]

My issued is the following,
In a pipeline if you have two valves in both ends and these valves are closed what would happend if the radiation of the sun hit the pipeline all the day.....what is the maximum pressure that can rise up the pipeline......

 

[bimr]

Would depend on the initial temperature, the final temperatures, the fluid properties, the piping materials, etc., none of which you have identified.

The rule of thumb is that if equipment is operating full of liquid, the equipment should be provided with a thermal relief valve if the volume of blocked-in liquid is greater than 0.5 m3.

Review this document:

http://www.chemwork.org/PDF/papers/what you sh...

You might try searching the site as this has been discussed:

http://www.eng-tips.com/viewthread.cfm?qid=393399

 

[LittleInch]

Very high pressure, but most pipelines are buried and hence don't have that problem. See this for a calculation

http://www.eng-tips.com/faqs.cfm?fid=1339

Of course it depends on the start pressure, the fluid and what are the start and end temperatures.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Latexman]

My favorite thread on this subject is thread124-171158 .

Good luck,
Latexman

To a ChE, the glass is always full - 1/2 air and 1/2 water.