Doug:

If pressure will be increased by about 3  times and a fraction, water flow must be 
reduced about 1/3 for the same power generation. You can use only 1 or 2 nozzles with 
smaller orifice dia. instead of the actual 3. Runner must be chequed for resistence to 
greater income water velocity at nozzles.

Carlos
  ----- Original Message ----- 
  From: Douglas B Rupp 
  To: [EMAIL PROTECTED] 
  Sent: Sunday, September 19, 2004 7:09 AM
  Subject: [microhydro] Increased pressure


  I have a 3 nozzle Pelton wheel hydrogenerator designed to work at 50psi and between 
about 0.2 to 1.0 ft^3/sec.

  I'm in a position to increase the pressure to 180psi, same water flow, and am 
wondering if I can still use the same Pelton wheel. 

  Obviously I will have to change the nozzle size and also the gear ratio that drives 
my 1800rpm generator.

  --DBR


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