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Pelton Turbines

This book concerns the theoretical foundations of hydromechanics of Pelton turbines from the engineering viewpoint. For reference purposes, all relevant flow processes and hydraulic aspects in a Pelton turbine have been analyzed completely and systematically. The analyses especially include the quan...

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Détails bibliographiques
Cote:Libro Electrónico
Auteur principal: Zhang, Zhengji (Auteur)
Collectivité auteur: SpringerLink (Online service)
Format: Électronique eBook
Langue:Inglés
Publié: Cham : Springer International Publishing : Imprint: Springer, 2016.
Édition:1st ed. 2016.
Sujets:
Accès en ligne:Texto Completo
Table des matières:
  • Introduction
  • Working principle of Pelton turbines
  • Injector characteristics
  • Jet characteristics and measurements
  • Interaction between the jet and Pelton wheel
  • Fluid mechanics in the rotating bucket
  • Water spreading in the rotating bucket
  • Exit flow conditions
  • Exit flows and hydraulic losses
  • Fricton effects and flow friction theorem
  • Viscous cross-flow through the bucket
  • Viscous longitudinal flow through the bucket
  • Friction and windage losses in Pelton wheels
  • Power loss due to bearing frictions
  • Hydraulic and mechanical efficiency
  • Real hydraulic efficiency characteristics
  • Runaway speed and acceleration profile
  • Hydraulic design of Pelton turbines
  • Multi-jet Pelton turbines
  • Geometric and hydraulic similarities
  • Model turbine tests and efficiency scale-up
  • Sand abrasion and particle motion in the bucket flow
  • Bucket mechanical strength and similarity laws
  • Appendices: Nomenclature
  • Definition of derived parameters
  • Specific speed and application in Pelton turbines
  • Specification of the jet piece for a bucket
  • Specification of the bucket positions
  • Particle motion along the streamlines in the Pelton Bucket.