Steve,
Your a Genius.
I have this gravity pipeline that conveys water to a reservoir and the client has asked that he would like the water to run both ways. I said that I new of a bloke that could probably make water run up hills with out pumping!
Cheers,
Robin
>
> I am normally not one to split hairs, but couldn't resist this one:
> Consider an air bell 10.3m below water level, with a (perfect) vacuum
> pipe passing through it. Inside the air bell is a pressure gauge
> connected to the pipe. What is the gauge pressure?
>
> Cheers
>
> Steve
> -----Original Message-----
> From: Erik Scheir [mailto:erik.scheir@pandora.be]
> Sent: Sunday, January 16, 2005 11:45 PM
> To: <a href="/group/PipingDesign/post?postID=vjpLEeaP7tLduHHN8z4-M9F38uervVL24BZq0v9hS9EOQhkXQOrFH8AtqP1UJxLJrOwx82Ar2Ue60wjOxPZuKTaA">PipingDesign@yahoogroups.com</a>
> Subject: RE: [PipingDesign] about surge
>
>
>
> I used this sofware perhaps even before you were born, but what has that
> to do with te fact that -2 bar does nor exist on the earth. Try to use
> Flowmaster its even better then impulse from AFT and you will never see
> results with pressure nodes below 0 bar.
>
> Erik
>
>
>
>
> _____
>
> Van: gautam wayse [mailto:captain_wayse@yahoo.co.in]
> Verzonden: zaterdag 15 januari 2005 9:30
> Aan: <a href="/group/PipingDesign/post?postID=vjpLEeaP7tLduHHN8z4-M9F38uervVL24BZq0v9hS9EOQhkXQOrFH8AtqP1UJxLJrOwx82Ar2Ue60wjOxPZuKTaA">PipingDesign@yahoogroups.com</a>
> Onderwerp: RE: [PipingDesign] about surge
>
>
>
> hi
> friend
> better to go for impulse software for surge analysis
> .from applied flow technology,.
> use --- Erik Scheir <erik.scheir@pandora.be> wrote:
>
> ---------------------------------
> What do you mean with - 2 bar? Is it barg?
> The absolute vacum is - 1 barg or 0 bara, so - 2bar
> doesn't exsist.
>
> erik
>
>
>
>
>
> -----Oorspronkelijk bericht-----
> Van: Omid Hamlehdar [mailto:omid_7_ae@yahoo.com]
> Verzonden: dinsdag 11 januari 2005 7:19
> Aan: <a href="/group/PipingDesign/post?postID=vjpLEeaP7tLduHHN8z4-M9F38uervVL24BZq0v9hS9EOQhkXQOrFH8AtqP1UJxLJrOwx82Ar2Ue60wjOxPZuKTaA">PipingDesign@yahoogroups.com</a>
> CC: mechproj@xtra.co.nz; <a href="/group/PipingDesign/post?postID=QBbTfbld_YEoP6ysnnTHGOtQ8oNwoQFe-VrGLj2yEFUDKsUgezeaDqhdJS6idoNsckW9N0JwbzH-bAyZ">erik.scheir@pandora.be</a>
> Onderwerp: [PipingDesign] about surge
>
>
>
> Hi all
>
>
>
> I have a project for water handling, a pipeline with
> 100 km length, I am
> studying about surge in it according to a probable
> rapture in pipe and I am
> going to close two valves surrounding rapture point to
> avoid wasting water
> and to find out about surge cause by closing valves.
>
> Any body has experience in this regards? How shall we
> protect our system?
>
> I have heard from Erhard valve, they recommend a valve
> called "pipe burst
> control valve" to avoid wasting water when there is a
> rapture, this valve
> will be closed in around 2 min and this will cause
> surge in system, in some
> point we have -2 bar minimum pressure. I know that you
> may need to know
> about the profile but generally I would like to know
> how shall we suppress
> this surge?
>
>
>
> Best regards
>
>
>
> Omid
>
>
>
> ---------------------------------
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Received on Sun Jan 16 20:01:00 2005
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