Thermo-Hydraulic Modelling and Experimental Validation of an Electro-Hydraulic Compact Drive
Electro-hydraulic compact drives (ECDs) are an emerging technology for linear actuation in a wide range of applications. Especially within the low power range of 5–10 kW, the plug-and-play capability, good energy efficiency and small space requirements of ECDs render this technology a promising alte...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/9/2375 |
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| author | Søren Ketelsen Sebastian Michel Torben O. Andersen Morten Kjeld Ebbesen Jürgen Weber Lasse Schmidt |
| author_facet | Søren Ketelsen Sebastian Michel Torben O. Andersen Morten Kjeld Ebbesen Jürgen Weber Lasse Schmidt |
| author_sort | Søren Ketelsen |
| collection | DOAJ |
| description | Electro-hydraulic compact drives (ECDs) are an emerging technology for linear actuation in a wide range of applications. Especially within the low power range of 5–10 kW, the plug-and-play capability, good energy efficiency and small space requirements of ECDs render this technology a promising alternative to replace conventional valve-controlled linear drive solutions. In this power range, ECDs generally rely on passive cooling to keep oil and system temperatures within the tolerated range. When expanding the application range to larger power classes, passive cooling may not be sufficient. Research investigating the thermal behaviour of ECDs is limited but indeed required for a successful expansion of the application range. In order to obtain valuable insights into the thermal behaviour of ECDs, thermo-hydraulic simulation is an important tool. This may enable system design engineers to simulate thermal behaviour and thus develop proper thermal designs during the early design phase, especially if such models contain few parameters that can be determined with limited information available. Our paper presents a lumped thermo-hydraulic model derived from the conservation of mass and energy. The derived model was experimentally validated based on experimental data from an ECD prototype. Results show good accuracy between measured and simulated temperatures. Even a simple thermal model containing only a few thermal resistances may be sufficient to predict steady-state and transient temperatures with reasonable accuracy. The presented model may be used for further investigations into the thermal behaviour of ECDs and thus toward proper thermal designs required to expand the application range. |
| first_indexed | 2024-03-10T12:04:43Z |
| format | Article |
| id | doaj.art-651506ab7c014897b56cdb1dcadd9fc5 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T12:04:43Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-651506ab7c014897b56cdb1dcadd9fc52023-11-21T16:41:46ZengMDPI AGEnergies1996-10732021-04-01149237510.3390/en14092375Thermo-Hydraulic Modelling and Experimental Validation of an Electro-Hydraulic Compact DriveSøren Ketelsen0Sebastian Michel1Torben O. Andersen2Morten Kjeld Ebbesen3Jürgen Weber4Lasse Schmidt5Department of Energy Technology, Aalborg University, 9220 Aalborg, DenmarkInstitute of Fluid Power (IFD), Technische Universität Dresden, 01069 Dresden, GermanyDepartment of Energy Technology, Aalborg University, 9220 Aalborg, DenmarkDepartment of Engineering Sciences, University of Agder, 4879 Grimstad, NorwayInstitute of Fluid Power (IFD), Technische Universität Dresden, 01069 Dresden, GermanyDepartment of Energy Technology, Aalborg University, 9220 Aalborg, DenmarkElectro-hydraulic compact drives (ECDs) are an emerging technology for linear actuation in a wide range of applications. Especially within the low power range of 5–10 kW, the plug-and-play capability, good energy efficiency and small space requirements of ECDs render this technology a promising alternative to replace conventional valve-controlled linear drive solutions. In this power range, ECDs generally rely on passive cooling to keep oil and system temperatures within the tolerated range. When expanding the application range to larger power classes, passive cooling may not be sufficient. Research investigating the thermal behaviour of ECDs is limited but indeed required for a successful expansion of the application range. In order to obtain valuable insights into the thermal behaviour of ECDs, thermo-hydraulic simulation is an important tool. This may enable system design engineers to simulate thermal behaviour and thus develop proper thermal designs during the early design phase, especially if such models contain few parameters that can be determined with limited information available. Our paper presents a lumped thermo-hydraulic model derived from the conservation of mass and energy. The derived model was experimentally validated based on experimental data from an ECD prototype. Results show good accuracy between measured and simulated temperatures. Even a simple thermal model containing only a few thermal resistances may be sufficient to predict steady-state and transient temperatures with reasonable accuracy. The presented model may be used for further investigations into the thermal behaviour of ECDs and thus toward proper thermal designs required to expand the application range.https://www.mdpi.com/1996-1073/14/9/2375thermal modellingenergy efficient fluid powerdirect driven hydraulic drivespump-controlled cylinderelectro-hydraulic compact drivesself-contained cylinder drive |
| spellingShingle | Søren Ketelsen Sebastian Michel Torben O. Andersen Morten Kjeld Ebbesen Jürgen Weber Lasse Schmidt Thermo-Hydraulic Modelling and Experimental Validation of an Electro-Hydraulic Compact Drive Energies thermal modelling energy efficient fluid power direct driven hydraulic drives pump-controlled cylinder electro-hydraulic compact drives self-contained cylinder drive |
| title | Thermo-Hydraulic Modelling and Experimental Validation of an Electro-Hydraulic Compact Drive |
| title_full | Thermo-Hydraulic Modelling and Experimental Validation of an Electro-Hydraulic Compact Drive |
| title_fullStr | Thermo-Hydraulic Modelling and Experimental Validation of an Electro-Hydraulic Compact Drive |
| title_full_unstemmed | Thermo-Hydraulic Modelling and Experimental Validation of an Electro-Hydraulic Compact Drive |
| title_short | Thermo-Hydraulic Modelling and Experimental Validation of an Electro-Hydraulic Compact Drive |
| title_sort | thermo hydraulic modelling and experimental validation of an electro hydraulic compact drive |
| topic | thermal modelling energy efficient fluid power direct driven hydraulic drives pump-controlled cylinder electro-hydraulic compact drives self-contained cylinder drive |
| url | https://www.mdpi.com/1996-1073/14/9/2375 |
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