In low head sites and at low discharges, water wheels can be considered among the most convenient hydropower converters to install. The scope of this work is to improve the performance of an existing breastshot water wheel changing the blades shape, using Computational Fluid Dynamic (CFD) simulations. Three optimal profiles are investigated: the profile of the existing blades, a circular profile and an elliptical profile. The results are validated performing experimental tests on the wheel with the existing profile. The numerical results show that the efficiency of breastshot wheels is affected by the blades profile. The average increase in efficiency using the new circular profile is about 4% with respect to the profile of the existing blades.

CFD simulations to optimize the design of water wheels: study case of an existing breastshot water wheel / Quaranta, Emanuele; Revelli, Roberto. - ELETTRONICO. - (2016). ((Intervento presentato al convegno Computing and Control for the Water Industry, 14th International CCWI Conference 7-9 November 2016 – IWC tenutosi a Amsterdam, The Netherlands nel 07-09 November.

CFD simulations to optimize the design of water wheels: study case of an existing breastshot water wheel

QUARANTA, EMANUELE;REVELLI, Roberto
2016

Abstract

In low head sites and at low discharges, water wheels can be considered among the most convenient hydropower converters to install. The scope of this work is to improve the performance of an existing breastshot water wheel changing the blades shape, using Computational Fluid Dynamic (CFD) simulations. Three optimal profiles are investigated: the profile of the existing blades, a circular profile and an elliptical profile. The results are validated performing experimental tests on the wheel with the existing profile. The numerical results show that the efficiency of breastshot wheels is affected by the blades profile. The average increase in efficiency using the new circular profile is about 4% with respect to the profile of the existing blades.
File in questo prodotto:
File Dimensione Formato  
CFD simulations to optimize the design of water wheels_Quaranta and Revelli.pdf

non disponibili

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 529.29 kB
Formato Adobe PDF
529.29 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2655560
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo