Hydraulic pump pressure

It seems to me you can always gear something to (theoretically) get the right rpm.

The real question is ... have you got enough power from the turbine to drive it?

'Cos if you havn't, then no amount of gearing is going to help.

E.G Without enough power, you may get the flow but not enough pressure, or the pressure but not enough flow...the gearing would determine which way around it was.

(Sorry if this is stating the obvious
...but 10KW is a pretty big generator for a wind turbine)

Del

Hello miik999

As Del the cat states above, 10 kw is a large electrical output for a wind machine.

The Harrison people are being honest when they state 22 HP input to that generator is required.

22 HP = 16.412 kW, so you can see the unit efficiency is almost 61%, which efficiency would be standard for this type of coupled machine.

The wind turbine location is going to be high, in strong wind stream, well clear of trees, buildings and the like.

If you want more of your wind energy to be more efficient, then a permanent magnet 3 phase alternator coupled directly to the impeller, and mounted at the mast top would be better.

There are several interesting designs of vertical impellers which generate power no matter from which direction the wind arrives, and these don't require electrical sliprings.

Contact Harrison, and ask them for pump details, as they must surely know what other equipment is required with their turbine, since they have been in business since 1969.

Kind Regards....

My memory of the Harrison system was that it relied on variable displacement, variable speed hydraulic motor. The full 22HP would only be needed if the full load was called for by the generator. At lower loads the displacement of the motor would increase, therefor slowing the alternator speed to maintain the correct frequency. As load increased the alternator would slow and the hydraulic motor would decrease displacement, causing the same amount of hydraulic fluid th spin the alternator faster, maintaining the proper frequency again. If you cannot generate sufficient hydraulic power from your wind turbine, you should be able to add an additional wind turbine and hydraulic pump to the generator system. Google variable displacement hydraulic motors and pumps. Good luck.