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equivalent pipe method

equivalent pipe method

equivalent pipe method

(OP)
i used the equivalent pipe method to determine the head of the pipe. the pressure drop across my device is known and is converted to head. now i have the total head of the system. to fall within the recommended pressure operating range of the device do i add head before selecting a pump?

RE: equivalent pipe method

Sorry, but I have no idea about what you are talking about.

Please take some time to explain what you are trying to do and what you have done so far.

Care to try again?

**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/

RE: equivalent pipe method

Slenn

When in doubt, going back to the basic Bernouli's equation usually helps.

By the way, because this board gets a multiutde of people from around the world, all coming from different disciplines, communications skills are very important.  It really helps us to help you if you:
(1) Use proper grammar, puncuation, capitalization, and spelling;
(2) Provide a diagram if at all possible (that overcomes any deficiencies in (1);
(3) Give way more detail then you think necessary, so no one is left guessing.  

Big Inch -- I'm not really sure what he's talking about either.  It sounds like he wants to add a head fudge factor before selecting his pump and is looking for someone to give him an ok.

Patricia Lougheed

******

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RE: equivalent pipe method

Yes it looks to me that he's calculated the head loss of all the equipment and now wants to add head to get within some operating range, but I don't know what the range is, or why you would have to add it.  He might be trying to reach a specific BEP head or close-by "BEP operating range" by adding suction head, so I thought I'd ask for some more info.

**********************
"Pumping accounts for 20% of the world's energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies) http://virtualpipeline.spaces.live.com/

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