Turbina pelton

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Turbina pelton

• César bertomeu

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Principio de funcionamiento

• Está formada por una rueda móvil provista de
  aletas o cucharas en su periferia sobre las
  cuales incide el chorro de agua a la presión
  atmosférica
• Chorro sale de un inyector fijo en el cual la
  regulación se efectúa variando la posición de una
  aguja que obtura más o menos el orificio de
  salida. El chorro incide en la arista central de
  las cucharas y se divide en dos partes que salen
  despedidas lateralmente, para caer después al
  canal de fuga directamente por la fuerza de la
  gravedad (por tanto, no tienen difusores).
• Para caudales mayores, pueden disponerse varias
  toberas en diversas posiciones del rodete

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rodete
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Energy Extraction Pelton Turbine

• These double cups catch the water from the input
  water jets and redeflect it for maximum thrust to
  spin the rotor
• Pelton turbines are popular for microturbines
  producing remote home energy

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Small Harris hydro generator for home use

• An automotive alternator is remanufactured to
  generate the required voltage at a low speed, as
  car alternators run at 5,000 to 18,000 rpm
• A Pelton wheel turbine is spun by four nozzle
  flows

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Turbine Description

• A small exciter generator is at the top of the
  shaft and its energy drives the stator
  (stationary) coils of the large alternator
• The alternator (main generator of alternating
  current) is above the turbine on the same shaft
• The turbine at the bottom spins at a slow speed
  (150 rpm) to move the rotor coils past the
  stator coils and generate at the desired
  frequency (60 Hz in the US often 50 Hz overseas)

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A Typical Turbine Hall

• Tongland Turbine Hall, Kirkcudbright, Galloway
• The exciters are located atop the generators and
  drive the field coils of the generator
• Turbine areas are very noisy, requiring ear
  protection

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