Preprint Article Version 1 NOT YET PEER-REVIEWED

A Performance Prediction Method for Pumps as Turbines (PAT) Using a CFD Modeling Approach

  1. Department of Industrial Engineering, University of Naples Federico II, Via Claudio, 21 - 80125 Naples, Italy
Version 1 : Received: 18 October 2016 / Approved: 19 October 2016 / Online: 19 October 2016 (10:17:33 CEST)

How to cite: Frosina, E.; Buono, D.; Senatore, A. A Performance Prediction Method for Pumps as Turbines (PAT) Using a CFD Modeling Approach. Preprints 2016, 2016100077 (doi: 10.20944/preprints201610.0077.v1). Frosina, E.; Buono, D.; Senatore, A. A Performance Prediction Method for Pumps as Turbines (PAT) Using a CFD Modeling Approach. Preprints 2016, 2016100077 (doi: 10.20944/preprints201610.0077.v1).

Abstract

Small and micro hydropower represents an attractive solution for electricity generation, with low cost and low environmental impact. The pump-as-turbine (PAT) approach has promise in this application owing to its low purchase and maintenance costs. In this paper, a new method to predict the inverse characteristic of industrial centrifugal pumps is presented. This method is based on results of simulations performed with commercial three-dimensional CFD software. Model results have been first validated in pumping mode using data supplied by pump manufacturers. Then, results have been compared to experimental data for a pump running in reverse condition. Experimentation has been performed on a dedicated test bench installed in the Department of Civil Construction and Environmental Engineering of the University of Naples Federico II. Three different pumps, with different specific speeds, have been analyzed. Using the model results, the inverse characteristic and the best efficiency point have been evaluated. Finally, results of this methodology have been compared to prediction methods available in the literature.

Subject Areas

energy saving; PAT; Urban Hydraulic Network; numerical modeling

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