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Posted: 1/18/2006 3:10:44 PM EDT
I need to know if someone can calculate or estimate the flow of diesel fuel under the following conditions:

- Bottom of tank 1 is sitting 6 inches higher than the top of tank 2 (1 is above 2)
- Tank 1 is connected at it's bottom to the top of tank 2 with a 1/4" dia. line
- Total line length is 2 feet.
- Both tanks are freely vented and there are no obstructions to flow between them.
- Tank 1 is 60"l x 14"w x 20'h and is approximately half full

What is the approximate flow, in gallons per hour, from tank 1 to tank 2?

Thanks,

Merlin
Link Posted: 1/18/2006 3:23:41 PM EDT
I have no idea, but wouldn't tank one have to remain at the half full level for the rate of flow to remain constant.



Oh, and free bump.
Link Posted: 1/18/2006 4:25:08 PM EDT

Originally Posted By krpind:
I have no idea, but wouldn't tank one have to remain at the half full level for the rate of flow to remain constant.



Oh, and free bump.



By definition, the flow wouldn't be constant since the upper tank is draining the amount of pumping force is declining. That's ok, I just need a "seat of the pants" general estimate by someone that knows Bernouli's constant and other hydro stuff.

Thanks

Merlin
Link Posted: 1/18/2006 5:16:05 PM EDT
1/4" line, constant pressure (which obviously won't happen), somewhere between 7-10 gallons per hour, IMO.

Length of line doesn't matter, IMO, once flow starts.
Link Posted: 1/19/2006 8:35:00 AM EDT

Originally Posted By BobCole:
1/4" line, constant pressure (which obviously won't happen), somewhere between 7-10 gallons per hour, IMO.

Length of line doesn't matter, IMO, once flow starts.



That's about what I was thinking. Thanks,

Merlin
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