Numerical Simulation Study on the Volumetric Efficiency Loss of CO2 Swash Plate Axial Piston Pumps
Source abstract
Abstract
With the aim of addressing the low volumetric efficiency of CO2 swashplate axial piston pumps, the influence of four volumetric losses—loss of the CO2 compression retention volume, leakage volume loss of the port pair, leakage volume loss of the plunger pair, and leakage volume loss of the slipper pair—on volumetric efficiency was analyzed using a transient numerical simulation method. The numerical simulation results showed that the real physical property model can accurately describe the compression retention characteristics of CO2 under high-pressure conditions. CO2 compression retention volume loss accounted for 28.6% of the volumetric efficiency and was the main factor causing low volumetric efficiency of the piston pump. Leakage volume losses of the slipper pair, the flow distribution pair, and the plunger pair accounted for about 3.4%, 1.5%, and 0.5% of the volumetric efficiency, respectively. These research results provide a reference for volumetric efficiency loss analyses of piston pumps.
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Research context
OpenAlex topics: Hydraulic and Pneumatic Systems · Refrigeration and Air Conditioning Technologies · Tribology and Lubrication Engineering
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Mechanical Engineering College, Xi’an Shiyou University, Xi’an 710065, China
References (30)
Show source-provided references
1. Carbon Capture and Storage Promotion in China: Current Status, Challenges and Prospects
2. Towards a new era of diversified energy development: Innovation in theoretical petroleum geology to meet “dual carbon target”
3. Research progress of carbon dioxide capture technologies and their application inenhanced oil recovery
4. Performance calculation of high-pressure reciprocating pump for dense phase CO2
5. Flow characteristics analysis of a balanced valve distribution double-row axial piston pump10.5194/ms-13-207-2022 ↗
6. Thermal balance and gap flow of high-pressure, large-scale plunger pairs10.1080/01457632.2023.2199535 ↗
7. A novel performance model given by the physical dimensions of hydraulic axial piston motors: Model derivation10.1007/BF03161714 ↗
8. A novel performance model given by the physical dimensions of hydraulic axial piston motors: Experimental analysis10.1007/BF03026968 ↗
9. Bergada, J.M., Kumar, S., and Watton, J. (2012). Axial Piston Pumps, New Trends and Development. Fluid Dynamics, Mechanical Applications and Role in Engineering, Nova Science.
10. A complete analysis of axial piston pump leakage and output flow ripples10.1016/j.apm.2011.09.016 ↗
11. Multi-objective Optimization of Cylinder/Valve-plate Sealing Ringin Axial Piston Pump Based on Genetic Algorithm
12. Multi—Parameter optimization of damping groove on axial piston pumpbased on multi—Objective genetic algorithm
13. Pressure, flow, force, and torque between the barrel and port plate in an axial piston pump10.1115/1.2807183 ↗
14. Study on the characteristics of oil film load capacity for axial piston pump10.1080/14484846.2018.1485213 ↗
15. Zhang, Z., Ma, S., Lv, P., Chao, Q., Li, L., and Liu, Z. (2024). Study on Temperature Characteristics of Lubrication Film of Valve Plate Pair in Axial Piston Pumps. Appl. Sci., 14.10.3390/app14083359 ↗
16. The effect of piston grooves performance in an axial piston pumps via cfd analysis10.1016/j.ijmecsci.2012.11.005 ↗
17. Lubricating characteristics and sealing performance of mixed tehd analysis of piston-cylinder interface in the piston pump10.1108/ILT-03-2023-0072 ↗
18. Optimized design of oil well pump plunger using bionic structure of decision system10.1007/s00500-022-07019-6 ↗
19. Numerical analysis of the water film characteristics in the eccentric state of a radial piston pump10.1109/ACCESS.2018.2808298 ↗
20. Numerical simulation of fluid-Structure-Thermal coupling of slipperpair in high-pressure and large-displacement radial piston pump
21. Leakage and groove pressure of an axial piston pump slipper with multiple lands10.1080/10402000802044332 ↗
22. The hydrostatic/hydrodynamic behaviour of an axial piston pump slipper with multiple lands10.1007/s11012-009-9277-0 ↗
23. Experimental analysis of frictional power loss of hydrostatic slipper bearings10.1108/00368790910953631 ↗
24. Effect of case drain pressure on slipper/swashplate pair within axial piston pump10.1631/jzus.A1500182 ↗
25. Performance optimization of grooved slippers for aero hydraulic pumps10.1016/j.cja.2015.12.021 ↗
26. Du, Z.L. (2022). Efficiency Characterization and Asymptotic Reliability of Axial Piston Pumps. [Ph.D. Thesis, Shenyang University of Technology].
27. Ultrasonic-based measurement of oil film thickness in the valve plate pair of an aviation fuel piston pump10.1016/j.measurement.2025.116741 ↗
28. Theoretical and experimental on two-phase flow mechanism oflow-temperature high-speed hydrodynamic mechanical seal
29. Zhang, W. (2017). Study on Variable Displacement Characteristics of Three-Port Axial Piston Pump. [Master’s Thesis, Taiyuan University of Science and Technology].
30. Rea-l time Measurement on Lubrication Characteristic Parametersof Plane Port Pair in Axial Piston Pumps