Don wrote:
>Those low speed devices are best for such things as pumping water. If
>you try to gear them up for higher output speed you run into significant
>gear losses due to the significantly increased load between drive elements.
I think that the water in all my designs never travels faster than, say, 10
linear feet per second. At this velocity, the non-linear character of the
head-loss table is actually working on my behalf. In other words, it's
really negligible. The only exception is the hydraulic ram compressor, where
the water approaches a high terminal velocity. But it is what it is.
Bill