How to calculate the pump surge pressure?

[SyedZainAli]

Dear All,
I am right now looking for some pumps attached in parallel to a header I want to calculate the surge in startup of pump to cater the hammering in the header

 

[LittleInch]

Syed, I don't think there is any easy way ro do this other than a full transient analysis. There are so.many variables it is not easy to calcualte.

Is this anexkating Pdroblem or anew set up?

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

 

[bimr]

Install a pressure transmitter on the pipe and data log the pressure surge. You will need a data logger that is capable of recording instantaneously, not one that samples once per minute.

The data loggers are not expensive:

http://www.wateronline.com/doc/pressure-transient-analysis-system-0001

You might also investigate soft start systems for the pumps.

 

[BigInch]

What type of pump and what power rating do the pump's have.

 

[LittleInch]

Sounds like you're starting a pump against a low head. Try changing the start sequence and start against a closed valve.

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

 

[Artisi]

Rather than trying to assertion surge pressure on start, you should be investigating how to reduce surge pressure.
Would suggest more detail is required for meaningful answers.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)