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  • StatusClosed
  • OP-ModePre-Launch
  • LocationN48 - E11
  • Localtime00:32
  • CountdownT-00D 00:00

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Pelton-Turbine calculations

ParameterSymbol/RelationshipUnitNotes
Jetspeedv = \sqrt{2*g*H}m/sDue to friction losses the jet will be 2-4% slower
Height/HeadHm
Earth Gravitationgm/s²9,81 m/s²
Turbine RPMRPMt = {v}/{2R}rad/sOptimum RPM is about 2-10% lower
Jet-Turbine RadiusRmCenter axis to cup center
Jet cross-sectionA = {Q}/{v}adjusted by nozzle
Water volumeQm³/s
Jet diameterd = \sqrt{{4A}/{pi}}m
Cup heightb \approx 2.4*pm+/- 12% tolerance in construction
Mission-Log entry created by chrono on 2012/02/18 19:53 UTC

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