Work

[den]

Problem:

Take one of these:


And fill it in 5 minutes.

We've talked him down to 10 minutes.

Which is nice.

Comments

[thoughtsdriftby.livejournal.com]

It's extra if they want the truck redesigned. :-) It's fast but not supersonic and the load isn't all at once so it's much like loading rock and likely where they borrowed their time-to-fill number. Funny as it might sound the air over water method doesn't have the water hammer problem. It is noisy and requires regeneration time though.

Let's see if they would allow a 24" pipe (looks to be a 30" opening) it's under 7 ft/sec. A 16" pipe would be just over 15.3 ft/sec or about when the force on bends and the jet reaction start to be fun. I'm assuming a 2000 lb ton, 62.4 lbs/cu ft water, and about five minutes. That the whole thing has to start from rest would have to be added and the numbers recalculated but speeds under 40 ft/sec make this very possible. Head... not a problem, rather low actually, well within gravity feed. Head = Vel^2/2*g ignoring friction. I'd bet I could do it under 3 minutes without breaking the truck.