Optimal Selection and Operation of Pumps as Turbines for Maximizing Energy Recovery

A pump as turbine (PAT) can be a cost-effective and versatile solution to recover energy in several fields of application. However, its optimal exploitation requires a reliable and general methodology for selecting the optimal turbomachine. To this purpose, this paper presents and validates a compre...

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Main Authors: Lucrezia Manservigi, Mauro Venturini, Enzo Losi, Giulia Anna Maria Castorino
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/15/23/4123
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author Lucrezia Manservigi
Mauro Venturini
Enzo Losi
Giulia Anna Maria Castorino
author_facet Lucrezia Manservigi
Mauro Venturini
Enzo Losi
Giulia Anna Maria Castorino
author_sort Lucrezia Manservigi
collection DOAJ
description A pump as turbine (PAT) can be a cost-effective and versatile solution to recover energy in several fields of application. However, its optimal exploitation requires a reliable and general methodology for selecting the optimal turbomachine. To this purpose, this paper presents and validates a comprehensive methodology that identifies the best turbomachine (i.e., the one that maximizes the recovered energy) by considering two hydraulic sites and forty-five PATs. In both sites, the methodology correctly identifies the best PAT, which allows for the recovery of up to 45% of the available hydraulic energy. To further investigate PAT potential, an additional layout of installation, which comprises two PATs installed in parallel, is also considered. The operation of both PATs is optimally scheduled to maximize energy recovery. As a result, the energy recovered by the best pair of PATs is almost 50% of the available hydraulic energy. An in-depth analysis about PAT operation (i.e., operating range, causes of wasted energy, timeframe of operation and PAT efficiency) reveals that the installation of two PATs is actually recommended in just one of the two considered sites.
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spelling doaj.art-e0d20f129ddc463c969abab0e0cc39a92023-12-08T15:28:33ZengMDPI AGWater2073-44412023-11-011523412310.3390/w15234123Optimal Selection and Operation of Pumps as Turbines for Maximizing Energy RecoveryLucrezia Manservigi0Mauro Venturini1Enzo Losi2Giulia Anna Maria Castorino3Dipartimento di Ingegneria, Università degli Studi di Ferrara, Via Saragat 1, 44122 Ferrara, ItalyDipartimento di Ingegneria, Università degli Studi di Ferrara, Via Saragat 1, 44122 Ferrara, ItalyDipartimento di Ingegneria, Università degli Studi di Ferrara, Via Saragat 1, 44122 Ferrara, ItalyDipartimento di Studi Umanistici, Università degli Studi di Ferrara, Via Paradiso 12, 44121 Ferrara, ItalyA pump as turbine (PAT) can be a cost-effective and versatile solution to recover energy in several fields of application. However, its optimal exploitation requires a reliable and general methodology for selecting the optimal turbomachine. To this purpose, this paper presents and validates a comprehensive methodology that identifies the best turbomachine (i.e., the one that maximizes the recovered energy) by considering two hydraulic sites and forty-five PATs. In both sites, the methodology correctly identifies the best PAT, which allows for the recovery of up to 45% of the available hydraulic energy. To further investigate PAT potential, an additional layout of installation, which comprises two PATs installed in parallel, is also considered. The operation of both PATs is optimally scheduled to maximize energy recovery. As a result, the energy recovered by the best pair of PATs is almost 50% of the available hydraulic energy. An in-depth analysis about PAT operation (i.e., operating range, causes of wasted energy, timeframe of operation and PAT efficiency) reveals that the installation of two PATs is actually recommended in just one of the two considered sites.https://www.mdpi.com/2073-4441/15/23/4123energy recoverypump as turbinerenewable energyselectionoperation
spellingShingle Lucrezia Manservigi
Mauro Venturini
Enzo Losi
Giulia Anna Maria Castorino
Optimal Selection and Operation of Pumps as Turbines for Maximizing Energy Recovery
Water
energy recovery
pump as turbine
renewable energy
selection
operation
title Optimal Selection and Operation of Pumps as Turbines for Maximizing Energy Recovery
title_full Optimal Selection and Operation of Pumps as Turbines for Maximizing Energy Recovery
title_fullStr Optimal Selection and Operation of Pumps as Turbines for Maximizing Energy Recovery
title_full_unstemmed Optimal Selection and Operation of Pumps as Turbines for Maximizing Energy Recovery
title_short Optimal Selection and Operation of Pumps as Turbines for Maximizing Energy Recovery
title_sort optimal selection and operation of pumps as turbines for maximizing energy recovery
topic energy recovery
pump as turbine
renewable energy
selection
operation
url https://www.mdpi.com/2073-4441/15/23/4123
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AT giuliaannamariacastorino optimalselectionandoperationofpumpsasturbinesformaximizingenergyrecovery