New Expressions to Apply the Variation Operation Strategy in Engineering Tools Using Pumps Working as Turbines

Frank A Plua, Francisco-Javier Sánchez-Romero, Victor Hidalgo, P. Amparo López-Jiménez and Modesto Pérez-Sánchez
Additional contact information
Frank A Plua: Civil and Environmental Engineering Department, Escuela Politécnica Nacional, Quito 170525, Ecuador
Francisco-Javier Sánchez-Romero: Rural and Agrifood Engineering Department, Universitat Politècnica de València, 46022 Valencia, Spain
Victor Hidalgo: Mechanical Engineering Department, Escuela Politécnica Nacional, Quito 170525, Ecuador
P. Amparo López-Jiménez: Hydraulic and Environmental Engineering Department, Universitat Politècnica de València, 46022 Valencia, Spain
Modesto Pérez-Sánchez: Hydraulic and Environmental Engineering Department, Universitat Politècnica de València, 46022 Valencia, Spain

Mathematics, 2021, vol. 9, issue 8, 1-17

Abstract: The improvement in energy saving aspects in water systems is currently a topic of major interest. The utilization of pumps working as turbines is a relevant strategy in water distribution networks consisting of pressurized pipes, using these machines to recover energy, generate green energy and reduce leakages in water systems. The need to develop energy studies, prior to the installation of these facilities, requires the use of simulation tools. These tools should be able to define the operation curves of the machine as a function of the flow rate. This research proposes a new strategy to develop a mathematics model for pumps working as turbines (PATs), considering the modified affinity laws. This proposed model, which can be input into hydraulic simulation tools (e.g., Epanet, WaterGems), allows estimation of the head, efficiency, and power curves of the PATs when operating at different rotational speeds. The research used 87 different curves for 15 different machines to develop the new model. This model improves the results of the previously published models, reducing the error in the estimation of the height, efficiency, and power values. The proposed model reduced the errors by between 30 and 50% compared to the rest of the models.

Keywords: PAT model; modified affinity laws; hydraulic simulation tool (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2227-7390/9/8/860/pdf (application/pdf)
https://www.mdpi.com/2227-7390/9/8/860/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:9:y:2021:i:8:p:860-:d:535983

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().