| Title: |
Theoretical Analysis of Active Flow Ripple Control in Positive Displacement Pumps |
| Authors: |
Casoli P.; Vescovini C. M.; Scolari F.; Rundo M. |
| Contributors: |
Casoli, P.; Vescovini, C. M.; Scolari, F.; Rundo, M. |
| Publisher Information: |
MDPI |
| Publication Year: |
2022 |
| Collection: |
PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino) |
| Subject Terms: |
active control; flow ripple; positive displacement pump; pressure ripple |
| Description: |
Positive displacement machines present a well-known major drawback that is the oscillation in delivered flow rate. This paper presents two active solutions for reducing the flow ripple generated by a pump with an external device actuated by means of a piezo-stack actuator. The work is focused on a theoretical analysis, with the aim of collecting information about the performance of the solutions proposed and their main advantages and drawbacks. The active methods proposed involve a cylindrical actuator connected to the delivery line of the pump. The piston could be actuated directly by a piezo-stack actuator or by a differential pressure modulated by a proportional piezo actuated valve. The actuators were modelled and a control algorithm based on Least Mean Square algorithm was used to achieve the adaptability for both systems at different operating con-ditions. The developed mathematical model permits to define the great potential of these solutions that can drastically reduce the flow ripple. The first architecture presented resulted as the best solu-tion, while the second one allowed reduction of the production cost. |
| Document Type: |
article in journal/newspaper |
| File Description: |
ELETTRONICO |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/wos/WOS:000824174400001; volume:15; issue:13; firstpage:4703; numberofpages:22; journal:ENERGIES; https://hdl.handle.net/11583/2970105 |
| DOI: |
10.3390/en15134703 |
| Availability: |
https://hdl.handle.net/11583/2970105; https://doi.org/10.3390/en15134703; https://www.mdpi.com/1996-1073/15/13/4703/htm |
| Rights: |
info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.CF37982E |
| Database: |
BASE |