LAUSR.org creates dashboard-style pages of related content for over 1.5 million academic articles. Sign Up to like articles & get recommendations!

Numerical investigation on screw rotor deformation and influence on volumetric efficiency of the twin-screw multiphase pump

Photo from wikipedia

The thermal and force deformation model was established to investigate the rotor deformation and its effect on the volumetric efficiency of the twin-screw multiphase pump with high gas volume fractions… Click to show full abstract

The thermal and force deformation model was established to investigate the rotor deformation and its effect on the volumetric efficiency of the twin-screw multiphase pump with high gas volume fractions (GVFs). Based on the ANSYS software, the deformations under different GVFs were calculated. The influence of the deformations on the clearance, the leakage flow rate and the volumetric efficiency was then analyzed. It was found that the largest clearance variation under the deformation was the radial clearance, followed by the circumferential clearance, and there was little change in the flank clearances. With the GVF increasing from 80% to 94%, the pump volumetric efficiency increased gradually. However, it decreased sharply when the GVF exceeded 94%. Finally, the rotor clearances were analyzed and optimized, and the recommended mounting clearances were proposed, which could decrease the leakage and prevent the rotor from being stuck when large deformations occurred.

Keywords: pump; deformation; efficiency twin; volumetric efficiency; rotor deformation

Journal Title: Applied Thermal Engineering
Year Published: 2017

Link to full text (if available)


Share on Social Media:                               Sign Up to like & get
recommendations!

Related content

More Information              News              Social Media              Video              Recommended



                Click one of the above tabs to view related content.