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Article

Definition of the Operational Curves by Modification of the Affinity Laws to Improve the Simulation of PATs

1
Hydraulic and Environmental Engineering Department, Universitat Politècnica de València, 46022 Valencia, Spain
2
Rural and Agrifood Engineering Department, Universitat Politècnica de València, 46022 Valencia, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Costanza Aricò
Water 2021, 13(14), 1880; https://doi.org/10.3390/w13141880
Received: 17 June 2021 / Revised: 1 July 2021 / Accepted: 5 July 2021 / Published: 6 July 2021
(This article belongs to the Special Issue Hydraulic Dynamic Calculation and Simulation Ⅱ)
New technologies for water pressurized systems try to implement the introduction of strategies for the improvement of the sustainable indicators. One of these technologies is the implementation of pumps working as turbines. The use of these recovery machines was proposed some years ago, and the interest in this technology has increased over the last years. The simulation of these machines is necessary when analyzing pressurized water systems, or when optimization procedures are proposed for their management, great care must be taken. In these cases, the knowledge of the operation curves is crucial to reach accurate results. This study proposes different regression expressions to define three operational curves when the machines operate under variable rotational speed. These curves are the best efficiency head, the best power-head and the best power flow. The here proposed methods were compared with other five published methods. The comparison shows the proposed method was the best when it is compared with the rest of the published procedures, reducing the error values between 8 and 20%. View Full-Text
Keywords: variable rotational speed; affinity laws; PATs; water networks; energy recovery variable rotational speed; affinity laws; PATs; water networks; energy recovery
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MDPI and ACS Style

Macías Ávila, C.A.; Sánchez-Romero, F.-J.; López-Jiménez, P.A.; Pérez-Sánchez, M. Definition of the Operational Curves by Modification of the Affinity Laws to Improve the Simulation of PATs. Water 2021, 13, 1880. https://doi.org/10.3390/w13141880

AMA Style

Macías Ávila CA, Sánchez-Romero F-J, López-Jiménez PA, Pérez-Sánchez M. Definition of the Operational Curves by Modification of the Affinity Laws to Improve the Simulation of PATs. Water. 2021; 13(14):1880. https://doi.org/10.3390/w13141880

Chicago/Turabian Style

Macías Ávila, Carlos A., Francisco-Javier Sánchez-Romero, P. A. López-Jiménez, and Modesto Pérez-Sánchez. 2021. "Definition of the Operational Curves by Modification of the Affinity Laws to Improve the Simulation of PATs" Water 13, no. 14: 1880. https://doi.org/10.3390/w13141880

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