Solar irrigation [RE-wrenches]

[Darryl Thayer]

HI Bill
Just some thoughts, First the energy to pump the water
is far far far larger than the energy to move the
pivot or the side-roll.  As I understand the side roll
Has the advantage that it does not require as much
pressure to pump the water.  (there is a slight
reduction of water required, but I don't think this
needs to be considered. If the customer wants to run
the water pump from solar-wind system, then the head
and flow are the requirements of interest.  Find the
well draw down (head) and add the side roll pressure
drop.  Using the flow and about 60% pump efficiency
you have the needed power.
Good Luck 
Darryl
 

--- bill roush <billroush at gmail.com> wrote:

> Anyone have any thoughts of this irrigation question
> from Kansas?
> 
> I am perfecting a well and must water multiple
> > acres, so I will have to have a larger system. I
> am trying to find out more
> > about Side-Roll Systems. They are closer to the
> ground then the Pivots. 
> > What I want the solar plus windmill for is to
> generate electricity to run
> > the pump. Side-Roll Systems use much less energy
> and are better for
> > conservation then the Pivot. The Pivot does not
> belong to me, which I pay
> > to use. I do not think it is wise to continue as
> we have. I want the farm
> > active not a out of business like too many small
> farms.
> 
> 
> -- 
> Best,
> Bill Roush
> billroush at gmail.com
> 816-868-9695
> 



		
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