Experimental and Numerical Analysis of a Cross-Flow Turbine

AbstractAn important component of the management cost of aqueducts is the energy costs. Part of these costs can be recovered by transforming some of the many existing energy dissipations into electric energy by means of economical turbines. This paper describes an experimental study that has been carried out in order to (1) test the performance of an economical cross-flow turbine that maintains high efficiency within a large range of water discharges, and (2) validate a new approximate formula relating main inlet velocity to inlet pressure. It is demonstrated that the proposed formula, on the basis of some simplifying assumptions, exactly links inlet velocity to inlet pressure with any possible geometry of the cross-flow turbine. A specific facility was designed and constructed inside the hydraulic laboratory of the Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale dei Materiali (DICAM) Department of the University of Palermo to carry out the experiments. Both numerical and experimental tests we...

[1]  Shahram Khosrowpanah,et al.  Experimental Study of Cross-Flow Turbine , 1988 .

[2]  Javed A. Chattha,et al.  Design of a Cross Flow Turbine for a Micro-Hydro Power Application , 2010 .

[3]  Steven G. Johnson,et al.  FFTW: an adaptive software architecture for the FFT , 1998, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181).

[4]  A. A. Williams,et al.  Pico hydro – Reducing technical risks for rural electrification , 2009 .

[5]  D. Wilcox.  Turbulence modeling for CFD , 1993 .

[6]  A. A. Fiuzat,et al.  Power Outputs of Two Stages of Cross‐Flow Turbine , 1991 .

[7]  Armando Carravetta,et al.  Banki-Michell Optimal Design by Computational Fluid Dynamics Testing and Hydrodynamic Analysis , 2013 .

[8]  A. A. Fiuzat,et al.  The Use of Interior Guide Tube in Cross Flow Turbines , 1989 .

[9]  Richard A. Davis,et al.  Time Series: Theory and Methods , 2013 .

[10]  A. Demirbas,et al.  Focus on the World: Status and Future of Hydropower , 2007 .

[11]  Armando Carravetta,et al.  PAT Design Strategy for Energy Recovery in Water Distribution Networks by Electrical Regulation , 2013 .

[12]  Young-Do Choi,et al.  Performance and Internal Flow Characteristics of a Cross-Flow Hydro Turbine by the Shapes of Nozzle and Runner Blade , 2008 .

[13]  Didier Imbault,et al.  A design methodology for cross flow water turbines , 2010 .

[14]  Tullio Tucciarelli,et al.  Cross-Flow turbine design for variable operating conditions , 2014 .

[15]  Yonghua Song,et al.  A Comprehensive Review on the Development of Sustainable Energy Strategy and Implementation in China , 2010, IEEE Transactions on Sustainable Energy.

[16]  N. M. Aziz,et al.  An experimental investigation of cross-flow turbine efficiency , 1994 .

[17]  D. G. Shepherd,et al.  Principles of Turbomachinery , 1956 .

[18]  Slamet Wahyudi,et al.  The Cross Flow Turbine Behavior towards the Turbine Rotation Quality, Efficiency, and Generated Power , 2012 .

[19]  Miguel Asuaje,et al.  Numerical Investigation of the Internal Flow in a Banki Turbine , 2011 .

[20]  Armando Carravetta,et al.  Energy Production in Water Distribution Networks: A PAT Design Strategy , 2012, Water Resources Management.

[21]  Julian D Booker,et al.  Performance of a low-head pico-hydro Turgo turbine , 2013 .