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A steady-state numerical approach for the thermo-
structural analysis of a cryogenic piston pump
Stefano Cioni1*, Francesco Balduzzi1, Luca Romani1, Luca Sambri2, Luca
Marianetti2 and Giovanni Ferrara1
Abstract.
1. Introduction
2. Pump Geometry
3. Methodology
Figure 1.
Figure 2.
Figure 3.
Figure 4. Sketch of components tested in structural simulations and boundary conditions. (a) Cylinder
assembly: A, valve seat ring, B, cylinder body, C, piston ring seat. (b) Piston
4. Results
Figure 5. Distribution of heat transfer coefficient from the simulations of suction (a) and
discharge (b) phases.
Figure 6. Steady temperature distribution obtained from the thermal simulations. (a) external
temperature distribution. (b) Internal temperature distribution.
Figure 7.
Figure 8.
Conclusions
References
46
21
2385
Figure 9. (a) Radial deformation distribution of the piston. The deformations are amplified by a
factor of 62. The undeformed geometry of the piston is shown in grey. (b) radial deformation of
the cylinder.
