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A Similarity based Efficiency Model of Spindle Screw Pumps

Schänzle, Christian ; Corneli, Tobias ; Pelz, Peter F. (2022)
A Similarity based Efficiency Model of Spindle Screw Pumps.
International Conference on Screw Machines (ICSM) 2018. Dortmund (18.09.-19.09.2018)
doi: 10.26083/tuprints-00020810
Conference or Workshop Item, Secondary publication, Publisher's Version

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Abstract

Spindle screw pumps are used in numerous different applications and industrial sectors. When selecting a suitable spindle screw pump for a specified application, manufacturers are often confronted with a lack of comparable measurement data for the desired combination of operating conditions and pumping fluid. Consequently, the volumetric and mechanical-hydraulic efficiency of a pump under the operating conditions of the application need to be estimated. In this context, this paper discusses the application of similarity for three-spindle screw pumps and introduces a similarity based efficiency model. The model is validated by means of a measured pump characteristic at different operating conditions varying pressure, rotational speed and the viscosity of the pumping fluid. The validation results prove that a pump characteristic can be represented over a wide operating range based on similarity. An estimation of the volumetric and the mechanical-hydraulic efficiency at a changed viscosity is achieved with high accuracy. Furthermore, a new approach to monitor and to evaluate manufacturing uncertainty based on the model parameter relative gap is presented. Finally, the paper gives an outlook on future experimental investigations at TU Darmstadt on model series of three-spindle screw pumps containing pumps of different displacement volume.

Item Type: Conference or Workshop Item
Erschienen: 2022
Creators: Schänzle, Christian ; Corneli, Tobias ; Pelz, Peter F.
Type of entry: Secondary publication
Title: A Similarity based Efficiency Model of Spindle Screw Pumps
Language: English
Date: 2022
Place of Publication: Darmstadt
Year of primary publication: 2018
Publisher: IOP Publishing
Journal or Publication Title: IOP Conference Series: Materials Science and Engineering
Collation: 15 Seiten
Event Title: International Conference on Screw Machines (ICSM) 2018
Event Location: Dortmund
Event Dates: 18.09.-19.09.2018
DOI: 10.26083/tuprints-00020810
URL / URN: https://tuprints.ulb.tu-darmstadt.de/20810
Corresponding Links:
Origin: Secondary publication service
Abstract:

Spindle screw pumps are used in numerous different applications and industrial sectors. When selecting a suitable spindle screw pump for a specified application, manufacturers are often confronted with a lack of comparable measurement data for the desired combination of operating conditions and pumping fluid. Consequently, the volumetric and mechanical-hydraulic efficiency of a pump under the operating conditions of the application need to be estimated. In this context, this paper discusses the application of similarity for three-spindle screw pumps and introduces a similarity based efficiency model. The model is validated by means of a measured pump characteristic at different operating conditions varying pressure, rotational speed and the viscosity of the pumping fluid. The validation results prove that a pump characteristic can be represented over a wide operating range based on similarity. An estimation of the volumetric and the mechanical-hydraulic efficiency at a changed viscosity is achieved with high accuracy. Furthermore, a new approach to monitor and to evaluate manufacturing uncertainty based on the model parameter relative gap is presented. Finally, the paper gives an outlook on future experimental investigations at TU Darmstadt on model series of three-spindle screw pumps containing pumps of different displacement volume.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-208104
Additional Information:

Erscheint auch in: IOP Conference Series: Materials Science and Engineering 425, IOP Publishing

Classification DDC: 600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute for Fluid Systems (FST) (since 01.10.2006)
16 Department of Mechanical Engineering > Institute for Fluid Systems (FST) (since 01.10.2006) > Sustainable System Design
Date Deposited: 02 Mar 2022 12:20
Last Modified: 02 May 2022 05:49
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