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Open AccessArticle

About the Influence of Eco-Friendly Fluids on the Performance of an External Gear Pump

1
Department of Sciences and Methods for Engineering, University of Modena and Reggio Emilia, 42122 Reggio Emilia RE, Italy
2
InterMech—MO.RE., 41125 Modena MO, Italy
3
Dana Motion Systems Italia S.r.l., 42124 Reggio Emilia RE, Italy
*
Author to whom correspondence should be addressed.
Energies 2021, 14(4), 799; https://doi.org/10.3390/en14040799
Received: 20 December 2020 / Revised: 25 January 2021 / Accepted: 27 January 2021 / Published: 3 February 2021
(This article belongs to the Special Issue Gear Pumps and Motors)
This paper wants to investigate the effects of eco-friendly fluids on the thermo-fluid-dynamic performance of external gear pumps in order to provide a first response to the increasingly urgent demands of the green economy. A computational fluid dynamics (CFD) approach based on the overset mesh technique was developed for the simulation of the full 3D geometry of an industrial pump, including all the characteristic leakages between components. A sensibility analysis of the numerical model with respect to different fluid properties was performed on a commonly used mineral oil, showing the key role of the fluid compressibility on the prediction of the pump volumetric efficiency. Moreover, the influence of temperature internal variations on both fluid density and viscosity were included. The BIOHYDRAN TMP 46 eco-friendly industrial oil and olive oil were further considered in this work, and the results of the simulations were compared for the three fluid configurations. A slightly lower volumetric efficiency was derived for the olive oil application against the other two conditions, but suggestive improvements were produced in terms of pressure and temperature distributions. Therefore, based on the obtained results, this paper encourages research activity towards the use of eco-friendly fluids in the hydraulic field. View Full-Text
Keywords: gear pump; eco-friendly; CFD; volumetric efficiency; compressible fluid; overset mesh gear pump; eco-friendly; CFD; volumetric efficiency; compressible fluid; overset mesh
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MDPI and ACS Style

Muzzioli, G.; Montorsi, L.; Polito, A.; Lucchi, A.; Sassi, A.; Milani, M. About the Influence of Eco-Friendly Fluids on the Performance of an External Gear Pump. Energies 2021, 14, 799. https://doi.org/10.3390/en14040799

AMA Style

Muzzioli G, Montorsi L, Polito A, Lucchi A, Sassi A, Milani M. About the Influence of Eco-Friendly Fluids on the Performance of an External Gear Pump. Energies. 2021; 14(4):799. https://doi.org/10.3390/en14040799

Chicago/Turabian Style

Muzzioli, Gabriele; Montorsi, Luca; Polito, Andrea; Lucchi, Andrea; Sassi, Alessandro; Milani, Massimo. 2021. "About the Influence of Eco-Friendly Fluids on the Performance of an External Gear Pump" Energies 14, no. 4: 799. https://doi.org/10.3390/en14040799

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