[Boatanchors] Motors and pump flow rate

John Flood via Boatanchors boatanchors at mailman.qth.net
Fri Jun 5 16:49:43 EDT 2015


Hi Kids
Totally off track but based on water flow that is about 203 million gallons per day.  I would typically suggest a 72" flow meter for that application.  Not a lot compared lets say the new waste water treatment system in Boston that has a capacity of treating 1,270 million gallons per day where my company supplied multiple 72" diameter meters for inlet flow measurement.  The Toronto treatment plant inlet has two 120" (10feet!) diameter flow meters.  I forgot what they can treat a day.  Below is what inlet pumps the Boston system has.  Sorry I don't have voltage info.
Containing ten 3,500 hp pumps and six 600 hp pumps. The capacity for the North System is 910 mgd. The  Pump Station for the South System can handle an additional 360 mgd of flow, and contains eight 1,250 hp pumps

Running "balls to the wall" that is 48,600HP if i did my math correct.   and now, back to radio!
John Flood KB1FQG
      From: rbethman <rbethman at comcast.net>
 To: boatanchors at mailman.qth.net 
 Sent: Friday, June 5, 2015 12:37 PM
 Subject: Re: [Boatanchors] Motors and pump flow rate
   
On 6/5/2015 9:58 AM, mikea wrote:
> On Wed, Jun 03, 2015 at 06:39:30PM -0400, WA5CAB--- via Boatanchors wrote:
>> Who the **** would run a motor on 50KV?
> Good question. I know that some ships run their propulsion motors on 17KV AC;
> I'm not sure of the frequency, or if it's 1-phase or 3-phase. The Chief Engineer
> of the Carnival Triumph and I spent about 15 minutes discussing the power chain
> between the diesels and the screw(s) on that ship, and I learned a number of
> interesting things. This conversation led me to trawl through the UK marine
> accident investigation agency pages, where there are some interesting reports on
> failures in the electrical segment of some ship propulsion systems.
>
> I also wouldn't be surprised if some steel mills ran very high power motors on
> high voltage AC, but I don't have direct knowledge of that.
>
Doing some hunting for Primary Coolant Loop flow rates, I ran across 
where the flow rate for one Nuclear plant is/was 32 x l0**6 kg/h.

IOW 32 million kg/h.  That takes some serious horsepower!

Regards, Bob - N0DGN
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