Calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition module

This study presents the calculation of hydraulic efficiency in a variable-speed centrifugal pump using the Thermodynamic Method, employing a cost-effective, adapted data acquisition system to obtain key variables. The proposed equipment complies with the criteria established by the “International El...

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Main Authors: Erick O. Castañeda Magadán, Laura L. Castro Gomez, José A. Marbán Salgado, Miguel A. Basurto Pensado, Víctor M. Zezatti Flores, Oscar Sotelo Mazón
Format: Article
Language:English
Published: Elsevier 2025-08-01
Series:Measurement: Sensors
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Online Access:http://www.sciencedirect.com/science/article/pii/S266591742500162X
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author Erick O. Castañeda Magadán
Laura L. Castro Gomez
José A. Marbán Salgado
Miguel A. Basurto Pensado
Víctor M. Zezatti Flores
Oscar Sotelo Mazón
author_facet Erick O. Castañeda Magadán
Laura L. Castro Gomez
José A. Marbán Salgado
Miguel A. Basurto Pensado
Víctor M. Zezatti Flores
Oscar Sotelo Mazón
author_sort Erick O. Castañeda Magadán
collection DOAJ
description This study presents the calculation of hydraulic efficiency in a variable-speed centrifugal pump using the Thermodynamic Method, employing a cost-effective, adapted data acquisition system to obtain key variables. The proposed equipment complies with the criteria established by the “International Electrotechnical Commission (IEC) 60041” Standard for applying the Thermodynamic Method to the pump. Temperature and pressure measurements at the suction and discharge section of the turbomachine provide real-time data for hydraulic efficiency calculation. The temperature and pressure (key variables) are recorded through an open access system integrated with commercial software that offers a user-friendly interface. Experimental tests conducted at different rotational speeds in the pump allow for the efficiency curves based on the temperature difference between the pump's inlet and outlet. The results indicate a maximum hydraulic efficiency of 50.52 % at a rotational speed of 276 rad/s with an error of 1.65 % compared to the theoretical efficiency and an average error of 7.49 % across the entire rotational speed range (220 rad/s – 371 rad/s). With an error margin below 10 % across the tested rotational speed range, the adapted module ensures reliable efficiency results for water temperatures ranging from 20 °C to 46 °C.
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spelling doaj-art-97bfc978f8fe49388e2a005dfa11f0ef2025-08-20T04:03:21ZengElsevierMeasurement: Sensors2665-91742025-08-014010196810.1016/j.measen.2025.101968Calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition moduleErick O. Castañeda Magadán0Laura L. Castro Gomez1José A. Marbán Salgado2Miguel A. Basurto Pensado3Víctor M. Zezatti Flores4Oscar Sotelo Mazón5Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma del Estado de Morelos (UAEM), Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, MexicoCentro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos (UAEM), Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, Mexico; Corresponding author.Centro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos (UAEM), Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, MexicoCentro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos (UAEM), Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, MexicoCentro de Investigación en Ingeniería y Ciencias Aplicadas, Universidad Autónoma del Estado de Morelos (UAEM), Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, MexicoInstituto de Ciencias Físicas, Universidad Nacional Autónoma de México (UNAM), Av. Universidad 1001, Col. Chamilpa, C.P. 62209, Cuernavaca, Morelos, MexicoThis study presents the calculation of hydraulic efficiency in a variable-speed centrifugal pump using the Thermodynamic Method, employing a cost-effective, adapted data acquisition system to obtain key variables. The proposed equipment complies with the criteria established by the “International Electrotechnical Commission (IEC) 60041” Standard for applying the Thermodynamic Method to the pump. Temperature and pressure measurements at the suction and discharge section of the turbomachine provide real-time data for hydraulic efficiency calculation. The temperature and pressure (key variables) are recorded through an open access system integrated with commercial software that offers a user-friendly interface. Experimental tests conducted at different rotational speeds in the pump allow for the efficiency curves based on the temperature difference between the pump's inlet and outlet. The results indicate a maximum hydraulic efficiency of 50.52 % at a rotational speed of 276 rad/s with an error of 1.65 % compared to the theoretical efficiency and an average error of 7.49 % across the entire rotational speed range (220 rad/s – 371 rad/s). With an error margin below 10 % across the tested rotational speed range, the adapted module ensures reliable efficiency results for water temperatures ranging from 20 °C to 46 °C.http://www.sciencedirect.com/science/article/pii/S266591742500162XData acquisitionCentrifugal pumpEfficiency comparisonHydraulic efficiencyThermodynamic method
spellingShingle Erick O. Castañeda Magadán
Laura L. Castro Gomez
José A. Marbán Salgado
Miguel A. Basurto Pensado
Víctor M. Zezatti Flores
Oscar Sotelo Mazón
Calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition module
Measurement: Sensors
Data acquisition
Centrifugal pump
Efficiency comparison
Hydraulic efficiency
Thermodynamic method
title Calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition module
title_full Calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition module
title_fullStr Calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition module
title_full_unstemmed Calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition module
title_short Calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition module
title_sort calculation of efficiency in a centrifugal pump using the thermodynamic method through an adapted voltage acquisition module
topic Data acquisition
Centrifugal pump
Efficiency comparison
Hydraulic efficiency
Thermodynamic method
url http://www.sciencedirect.com/science/article/pii/S266591742500162X
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