I think you’re talking about pipe friction in the penstock (supply pipe). Obviously the less friction the better. I only have two 45 fitting in the whole 950’ run. There are charts to galore that show what your pressure should be according to your systems head, flow rate and length of penstock. In my systems case I should be right around 27-28 PSI.Wow, I'm watching. I guess my questions are aimed at the hydro dynamics of the system.
How much does the velocity of the flow coming down effect the pressure or speed of the turbines vs just the 60' head? Wouldn't it be best to have a smooth as can be transition from the main downtube to the turbines to let the velocity help? or am I thinking wrong? It's late. My thinking cap already went to bed.
I will be watching!
every system is different of course. Some have low flow but very high head and some low head with high flow.