Sorry for being late; I guess that you already have
read some other responses, especially the one from Ed.
This is what you really need to do. If you need more
input, please let me know and also attach all the
operation details. Regards,
George
- Alex Dornn <adornn@kgsgroup.com> wrote:
>
> Yes, both pump will run at the same time.
> ----- Original Message -----
> From: constant george
> To: PipingDesign@yahoogroups.com
> Sent: Thursday, April 14, 2005 12:01 PM
> Subject: Re: [PipingDesign] Parallel Pump Suctions
>
>
> Do you run both pumps in the same time?
>
> --- dornnalex <adornn@kgsgroup.com> wrote:
> >
> >
> > How do you calculate the NPSH available when 2
> pump
> > are drawing from
> > the same suction line. I imagine I add the total
> > flow of both pumps to
> > calculate the friction losses in the suction
> line.
> > The absolute
> > pressure, vapour pressure and the static height
> > remain the same.
> > NPSH avail = Habs - Hvpa +/- Hst - Hfs
> >
> > Will this mean that the total "NPSH required" is
> > just the sum of the
> > NPSH of each pump?
> >
>
>
>
>
>
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Received on Wed Apr 20 11:30:00 2005