Original scientific paper
https://doi.org/10.13044/j.sdewes.d5.0181
Using a Statistical-Numerical Procedure for the Selection of Pumps running as Turbines to be applied in Water Pipelines: Study Cases
Silvio Barbarelli
orcid.org/0000-0002-8670-9955
; Department of Mechanical Energy and Management Engineering, University of Calabria, Via Ponte Pietro Bucci cubo 44/c, Rende, Italy
Mario Amelio
; Department of Mechanical Energy and Management Engineering, University of Calabria, Via Ponte Pietro Bucci cubo 44/c, Rende, Italy
Gaetano Florio
; Department of Mechanical Energy and Management Engineering, University of Calabria, Via Ponte Pietro Bucci cubo 44/c, Rende, Italy
Abstract
A combined method using statistical and numerical models has been developed by the authors for selecting a pump running as turbine to be applied in micro-hydro plants. The data of the hydrological site chosen for the installation (head and capacity) allow the calculation of two conversion factors which identify the pump to use successfully as
turbine in that place. Then, a one-dimensional model, starting from data available on the pumps manufacturers catalogues, reconstructs a virtual geometry of the pump running as turbine, and calculates the performances curves, head vs. capacity, efficiency vs. capacity, useful for identifying the operating point. Two study cases are presented to
apply the proposed methodology, concerning the feasibility of the installation of a pump running as turbine in the purifier water plants of Casali and Sersale, located at 1,000 m above sea level (Calabria, South Italy).The assessment of the annual energy yield gives a confirmation of the effectiveness and convenience of using pumps running as turbines.
Keywords
Hydropower; Experimental measurements; Pump as turbine; CQ-CH conversion factors; One-dimensional model; Case study
Hrčak ID:
200965
URI
Publication date:
30.6.2018.
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